52results about How to "Avoid too hard" patented technology

The invention belongs to the field of coatings and particularly relates to an odorless and wear-resisting smooth UV (ultraviolet) matt finish paint coating and a preparation method thereof. The odorless and wear-resisting smooth UV matt finish paint coating comprises components in percentage by weight as follows: 25%-50% of hexa-functional polyurethane acrylate prepolymers, 15%-50% of trifunctional modified polyurethane acrylate prepolymers, 15%-50% of acrylate monomers, 1%-10% of a photoinitiator, 0.2%-2% of a wetting dispersant, 0.2%-1% of a leveling agent, 0.2%-0.5% of a defoaming agent and 1%-15% of a matting agent. According to the odorless and wear-resisting smooth UV matt finish paint coating, the technical problems that a pungent smell is left, wetting of the matting agent is difficult, matting is difficult, a paint film is prone to floating and the like after curing of a conventional UV matt finish paint coating are solved, and meanwhile, the defect of crispness of the paint film caused by improvement of the wear resistance of the conventional UV matt finish paint coating is overcome.

Herein described is a marine plant for the automatic washing of boats, characterised in that it comprises a supporting structure (1) partially submerged, means (26, 28, 41) for cleaning the boat, means (13-14, 25-26, 40) for transmitting the motion commanded by at least one motor (18, 23, 34, 39) suitable for reciprocally positioning at least part of said cleaning means (26, 28, 41) in relation to the boat (8, 30), and a control unit (200) for the operator to control the marine plant.

The invention discloses a production technology of an anti-static fabric. An electric conduction wire and a polyester cotton yarn are double-twisted to obtain a conductive yarn, the conductive yarn iswoven at intervals to obtain an anti-static gray fabric, and through singeing, shape setting and dyeing, the dyed gray fabric is obtained; through anti-static after-finishing of an anti-static finishing solution, two-time soaking and two-time rolling, the anti-static gray fabric is obtained; finally, through antibacterial anti-mite finishing of an antibacterial anti-mite finishing agent, two-timesoaking and two-time rolling, the anti-static fabric is obtained. The prepared anti-static fabric has good anti-static performance, can achieve moisture absorption and air permeation, has antibacterial and anti-mite performance and is good in comfort and particularly suitable for being used as a fabric of outdoor sports wear and climbing wear. The point-to-point resistance of the anti-static fabric reaches 2.8*1,010 omega, the rate of resisting staphylococcus aureus reaches 89.7%, the rate of resisting escherichia coli reaches 86.8%, the rate of resisting candida albicans reaches 73.6%, the water absorption rate reaches 106%, and the amount of water vapor transmission reaches 8,125 g / m<2>.24 h.

The invention discloses a nursery stock rejuvenation method for border trees. The nursery stock rejuvenation method includes the following steps: digging rejuvenation caves in the outer sides of tree weirs; evenly mixing a border-tree rejuvenation base material with original soil according to the volume ratio of 1: (4-5), backfilling the caves, and compacting the soil. The border-tree rejuvenation base material comprises, by weight, 10-15 parts of grass carbon, 35-45 parts of rotten garden waste, 5-10 parts of perlite, 8-12 parts of slow-release fertilizer and 0.1-0.14 part of mycorrhizal fungus. The nursery stock rejuvenation method has the advantages that loose rejuvenation soil with rich nutrition, long-lasting fertilizer effect, high water-holding capacity and high breathability is provided for the border trees, and a health growth environment is provided for plant systems, so that adverse effect caused by external environment is relieved effectively, tree vigor is enhanced, and complete crowns and luxuriant foliage are achieved.

The invention relates to the technical field of irrigation, in particular to a root irrigation device for seedling cultivation. Four travelling wheels are connected to the lower end of a cart body through four support legs. A water tank is put in the cart body. A water pump is mounted on the cart body. A water inlet pipe is connected to the water inlet end of the water pump in a communicated mode.The moving end of the water inlet pipe is inserted into the water tank. A water outlet pipe is connected to the water outlet end of the water pump in a communicated mode. A nut is connected to the front end of the cart body. The root irrigation device has the advantages that seedling roots are irrigated, water evaporation caused by watering to the ground is reduced, the time required for contactbetween small water flows and tree roots is shortened, the nut, an outer pipe and a threaded section are arranged, the outer pipe is inserted into soil under the action of an external force, and accordingly, soil hardening is avoided; outer water outlet holes and inner water outlet holes are arranged in a staggered mode before the outer pipe is inserted into the ground, so that influences on the irrigation effect, which are caused by the fact that the soil enters the outer pipe when the outer pipe is inserted into the soil, are avoided; the outer water outlet holes and the inner water outlet holes are arranged in a superposed mode, and accordingly, water flows are enabled to flow out conveniently.

The invention discloses a contaminated soil multi-point intelligent collection and detection device, and belongs to the technical field of soil detection equipment. The device mainly comprises a detection box body, a soil collection element, an intelligent detection element and a power supply, the soil collection element comprises a collection installation drawer, a telescopic sleeve and a collection head, the lower end of the outer wall of the collection head is sleeved with an annular support, and multiple soil loosening gear rods are evenly arranged at the bottom end of the annular supportin the circumferential direction; through the arrangement of the soil loosening gear rod, soil loosening can be conducted on a to-be-collected detection area, and damage to a drill bit or shortening of the service life of the drill bit due to too hard soil texture is avoided; through the arrangement of the collection head, a spiral collecting piece can be prevented from being exposed all the timeand being bent easily, the soil collecting effect is not affected, and therefore, the detection efficiency is reduced; soil at different depths can be collected at multiple points; and moreover, the contaminated soil multi-point intelligent collection and detection device has the advantages of convenient collection, accurate detection and intelligent integration, and is suitable for large-scale popularization.

The invention discloses coconut-flavored coated peanuts and a preparation method thereof, belonging to the technical fields of foods and processing thereof. The coconut-flavored coated peanuts comprise the following materials in parts by weight: 80-100 parts of peanut kernels, 7-9 parts of white granulated sugar, 15-20 parts of coconut powder, 8-10 parts of dried meat floss, 30-40 parts of coating powder, 10-20 parts of water and 1-2 parts of peanut oil. The preparation method comprises the steps of selecting peanuts, sectional roasting, preparing syrup, coating, secondary sectional roasting and cooling, wherein the two roasting procedures both adopt roasting at different temperature sections. The method disclosed by the invention can improve the crispiness of coated peanut, is beneficial for keeping the nutrition and taste of peanut, and improves the yield; and the coated peanuts obtained according to the method disclosed by the invention have heavy coconut fragrance, unique and crispy taste and rich nutrition.

The invention discloses a method for artificially breeding hairy crabs. The method comprises the following steps of pond arranging, stocking of young crabs, hairy crab feeding, day-to-day managing and catching. According to the method for artificially breeding the hairy crabs, a small slope is arranged at the bottom of a pond, and the problem that on the condition that oxygen supply is insufficient, the survival rate of the hairy crabs is low due to the fact that oxygen is lacked, and the hairy crabs die is solved; meanwhile, the activity amount of the hairy crabs is increased, and the quality of the hairy crabs is improved; according to different periods of the hairy crabs, an appropriate amount of feed is put into the pond, and composition of the feed is changed, so that the survival rate of the hairy crabs in the early period is increased, the hairy crabs rapidly grow up and gain weight in the middle period, and it is guaranteed that the hairy crabs are large in size in the late period; due to the fact that hairy crabs with diseases are isolated, cross infection is prevented, and the quality of the hairy crabs is improved; by controlling the water hardness, the situation that shells of the hairy crabs are overhard is prevented, and the purchasing power of clients is improved.

The invention discloses an agricultural polyethylene nine-meter tubular product without an R port and double bevel angles, wherein a formula of raw materials is prepared in parts by weight: 65 to 80 parts of PVC (Polyvinyl Chloride), 20 to 30 parts of light calcium carbonate, 1 to 2 parts of CPE (Chlorinated Polyethylene), 0.8 to 1.5 parts of stabilizing agent, 0.2 to 0.5 parts of paraffins, 0.1 to 0.2 parts of stearic acid, and 0.05-0.1 parts of carbon black. According to the nine-meter tubular product without the R port and the double bevel angles provided by the invention, the tubular product avoids going bad due to too high or too low temperature when the R port is processed and the tubular product is carried out secondary heating and roasting, so that quality of the tubular product is severely influenced, and a situation that the R port is generally drained when a customer is using the tubular product occurs. Meanwhile, a pipe fitting is directly utilized without a rubber ring when a nine-meter tubular product without the R port and double bevel angles is arranged, so that the tubular product is convenient and quick to arrange, but a phenomenon of tipping or damaging the rubber ring is not happened; and furthermore, a draining problem caused by superhard rubber rings and asymmetrical butted pipes while construction is carried out in winter is overcome, and the draining problem caused by too soft and easily damaged rubber rings while the construction is carried out in summer is overcome as well.

The invention discloses an easy-to-replace mannequin for clothes exhibition. The mannequin comprises a base, wherein a cylinder and a controller are arranged inside the base; a telescopic rod is arranged at the top end of the cylinder; a first threaded shaft is arranged at the top of the telescopic rod; the lower body of the mannequin is positioned at the top of the telescopic rod; a first threaded hole is formed inside the lower body of the mannequin; a second threaded shaft is arranged at the top of the lower body of the mannequin; the upper body of the mannequin is arranged at the top of the lower body of the mannequin; and a second threaded hole is formed inside the upper body of the mannequin. The mannequin disclosed by the invention has the advantages that the cylinder is arranged, the controller is powered on to control the cylinder to operate to enable the telescopic rod to operate up and down, manual adjustment is not needed, and the height of the mannequin can be automatically adjusted so as to meet the requirements of different body heights; and furthermore, the lower body of the mannequin is in threaded connection with the upper body of the mannequin, when different types of mannequins need to be replaced, only one of the lower body of the mannequin or the upper body of the mannequin needs to be replaced, and then, the whole mannequin can be replaced, so that the operation is simple, convenient, time-saving and labor-saving.

The invention discloses a shoe midsole structure suitable for sports. Through the matching arrangement of a buffering air cavity and buffering air holes, buffering and damping effects can be generatedon the heel. Through the matching arrangement of rear air vents, a longitudinal slot, a transverse slot and side air vents, the fluidity of air is increased, and the whole body can be more easily bent back and forth. Through the matching arrangement of massage protrusions and a disc-shaped elastic sheet, massaging and buffering effects can be generated on the forefoot. Through the matching arrangement of a guide slot, guide holes and guide columns, the massage protrusions can stably move up and down, and displacement is avoided; in addition, under the compression of the massage protrusions, air in the slot can be discharged from the guide holes to enhance the ventilation effect. Through the arrangement of a mesh fabric layer, sweat, peculiar smell and the like can be easily absorbed. Theshoe midsole structure can effectively relieve different pressures borne by various parts of the foot, has a good buffering effect, improves the air permeability and the deodorizing effect, can massage the forefoot, and is comfortable to wear.

The invention discloses high-efficiency convenient earth-covering equipment used for a seeder. The equipment includes a machine frame, one end of the machine frame is equipped with a connecting plate,the upper and lower ends of the connecting plate are respectively connected with a trenching device and a transverse plate, the transverse plate is connected with a roller, the upper end of the machine frame is provided with a matter storing box, the lower end of the matter storing box is connected with a seeding box through the machine frame, a water storing bucket is installed on the upper endof the matter storing box, one end of the water storing bucket is connected with a water outlet pipe, one spray head is installed at one end of the water outlet pipe, the other end of the water storing bucket is connected with a water outlet pipe, the other end of the water outlet pipe is connected with one spray head, an earth covering roller is arranged at the lower end of the machine frame, andan earth covering device is arranged between the earth covering roller and the seeding box. According to the equipment provided by the invention, the spray heads are arranged in the front and rear parts of the equipment, before trenching is performed, water can be used for irrigation firstly, so that soil is prevented from becoming too hard, and trenching is not facilitated; at the same time, after soil covering is completed, irrigation is performed on the soil surface; and the equipment is simple in structure and convenient for operation, integrates the functions of reclamation, seeding, soil covering and irrigation, has improved the practicality of the equipment, and is suitable for large-scale production.

The invention discloses a school bag with a fixing function. The school bag with the fixing function comprises a body, wherein a zipper is arranged on the front side of the body, the middle part of the top surface of the body is fixedly connected with a base, the upper surface of the base is fixedly connected with a first fixing sleeve, the two sides of the top surface of the body are each fixedly connected with a mounting block, the top of each mounting block is fixedly connected with a thread bushing, the thread bushing is internally connected with a connecting rod by virtue of a screw thread, the top end of the connecting rod is fixedly connected with the two sides of a second fixing sleeve, and the top of the body is fixedly connected with a carrying handle. The school bag with the fixing function has the advantages that a clamping block and a fixing block are arranged, and the clamping block is clamped and connected in a clamping slot formed in the fixing block, so that the body is fixed at the waist of a user, and the effect of preventing shoulder straps from falling is achieved; meanwhile, the clamping block and the clamping slot are limited, a diagonal rod is utilized for fixing the clamping block in the clamping slot, fixation effect is enhanced, and clamping is more stable by arranging a first magnet layer and a second magnet layer.

The invention relates to massage equipment, in particular to back massage equipment. The technical purpose is to provide the back massage equipment which can improve the rehabilitation efficiency andcan perform massage for a long time. The back massage equipment is characterized by comprising a bottom plate, a first supporting frame, a second supporting frame, a cross plate, a lying plate, a wooden ladder, a sliding rail, a sliding block, an air cylinder, a connecting plate, a T-shaped rod, a first installing plate, a first massage ball and the like; the left side of the bottom plate is connected with the first supporting frame, the second supporting frame is connected with the right side of the bottom plate, the cross plate is connected with the upper portions of the second supporting frame and the first supporting frame, the lying plate is connected between the lower portions of the first and second supporting frames, and a first opening is formed in the left portion of the lying plate. According to the back massage equipment, the first massage ball moves downwards to be in close contact with the back of a patient, and the first installing plate moves rightwards and leftwards toallow the first massage ball to perform rehabilitation massage on the back of the patient.

An absorbent article to solve such problem that side leakage of the excretion liquid can be prevented so that dry touch and flexibility can be always kept. This absorptive article has a density gradient such that the relationship of fiber densities of the respective parts of the sanitary napkin 1 is expressed as a groove part 4 > the leakage preventing wall 6A > a main absorbing area S, whereby excretion received by the leakage preventing wall 6A is smoothly transferred to the groove part 4 provided in a lower position of the leakage preventing wall 6A. The excretion liquid flowing out to the groove part 4 is kept from flowing backward to a surface sheet 5 of the main absorbing area S and the leakage preventing wall 6A.

The invention discloses a self-cleaning ice cream machine which comprises a shell, a fixed shell, a refrigerator and a controller, the fixed shell and the refrigerator are both arranged in the outer shell, an inner container is arranged in the fixed shell, the motor drives a stirring piece in the inner container to rotate through a transmission assembly, the outer wall of the fixed shell is connected with the refrigerator to form heat transfer, and a plurality of washing assemblies are arranged on the stirring piece. The upper cover of the self-cleaning ice cream machine can play a role in sealing the inner container and can also press the stirring part, so that the sealing performance between the stirring part and the transmission assembly is improved, the ice cream machine can stir while cooling so as to accelerate solidification of ice cream, the air content in the ice cream is increased, the ice cream is prevented from being too hard, and the service life of the ice cream machine is prolonged. After the ice cream is taken, the inner wall of the inner container can be washed through the washing assembly, so that automatic cleaning of the ice cream machine is realized.

The invention discloses a five-component healthcare strengthening cake, which is characterized by comprising the following raw materials in parts by weight: 7-15 parts of starchy flour of buckwheat rice, 30-45 parts of peeled fresh sweet potatoes, 2-3 parts of peanut kernels, 1-1.5 parts of black tea and 3-8 parts of honey. A preparation method of the cake comprises the following steps that: peanuts are firstly dried in the sun, cracked, peeled and crushed; the black tea is dried and ground; the crushed peanut kernels and the black tea powder are mixed and ground again; the mixed powder is poured in the honey, stirred and soaked for 2-3 hours; the peeled fresh sweet potatoes are steamed to be thoroughly cooked, and are poured into a preheated stirring container; the starchy flour of buckwheat rice is also poured into the stirring container, and is uniformly stirred with the cooked potatoes; after the mixture is stirred to be uniform, soaking liquid of the black tea, the peanuts and the honey is added into the stirring container, and is mixed uniformly again to cluster, thus obtaining the five-component healthcare strengthening cake. The cake is processed at low temperature and reasonable in composition, is easy to store and carry and has a healthcare effect.

The invention relates to a manufacturing process for an environment-friendly polymer pen point of a skin-core structure. The manufacturing process comprises the step I of material selection: selectingpolyamide 6 as skin fibers and polyamide 66 as core fibers; the step II of compounding: bonding the skin fibers to the periphery of the core fibers with a composite spinning method, so that skin-corecomposite fibers are formed; the step III of strand combination; the step IV of fiber shaking: shaking single-stranded composite fibers at high frequency repeatedly, till the skin-core composite fibers are shaken to arrange uniformly; the step V of molding: heating the composite fibers through a thermal forming device at 220 DEG C-230 DEG C, so that the skin fibers are molten and the skin fibersof the skin-core composite fibers are bonded, and the fibers are formed into bars; the step VI of surface treatment; the step VII of cutting: cutting the bars into sections; and the step VIII of grinding. By adopting the above scheme, the invention provides the manufacturing process for the environment-friendly polymer pen point of the skin-core structure, and according to the manufacturing process, the pen point manufacturing is optimized; and the pen point has the advantages of good writing effect and labor saving in use.

The invention provides a method for improving the quality of dough for processing flour-made food. The method is characterized in that alkaline electrolyzed water is used to completely or partially replace dough kneading water during dough kneading; when the proportion of the alkaline electrolyzed water to common dough kneading water is X:(10-X), X ranges from 1 to 10, and water adding amount is increased by 5X%. The method has the advantages that the safety and health problems caused by traditional process using flour improver to increase the quality of raw materials and the dough are solved; the strength and ductility of the dough kneaded by low-gluten flour and plain flour can be evidently increased by the alkaline electrolyzed water to a level close to high-gluten flour, and the quality of the flour-made food such as bread, noodles and steamed buns is improved; the hydroxide ions of the alkaline electrolyzed water can be reduced in subsequent production, residual hydroxide ions in the food are avoided, and the method is safe and low in cost.

The invention discloses an alternate supporting bed for preventing pressure sores. The alternate supporting bed comprises a backup plate, bed surface plates and a sliding rail, wherein the lower end of the backup plate is fixedly provided with a first vertical rod, the right end of the first vertical rod is provided with a first transverse rod, the lower portion of the first transverse rod is connected with a baffle, and the surface plates are arranged at the rear side of the baffle. The alternate supporting bed has the advantages that the surface plates are set to be in a cubic long strip shape, the number of the surface plates is 32, the surface plates jointly form a panel part of the supporting bed, and each surface plate is as narrow as possible, thereby avoiding the situation that thesurface plates are very obviously uneven during stretching and retraction, and being conductive to preventing the human body while asleep from being uncomfortable; the lower end of each surface plateis set to be provided with a movable rod and a supporting column, and stretching and retraction can be carried out between each group of the movable rod and supporting column, thereby changing the height of the corresponding bed surface plate on the upper portion; the bed surface plates of different positions are changed for stretching and retraction, thereby changing the stress situation that the human body sleeps on different parts of the supporting bed to relieve the physical pressure, thereby being conductive to avoiding the local pressure sores.

The invention discloses an ultrasonic fabric bonding mechanism for a full-servo mask machine. The ultrasonic fabric bonding mechanism comprises a supporting and fixing plate, supporting plates are fixedly connected to the left side and the right side of the upper surface of the supporting and fixing plate, a first driving shaft is fixedly connected to the bottom of one side of each supporting plate, a first rolling wheel is fixedly connected to the outer surface of each first driving shaft, a first transmission belt is in transmission connection to the outer surfaces of the first rolling wheels, and a fixing pad is fixedly connected to one side of the upper surface of the supporting and fixing plate. The fixing pad, a fixing plate block, a fixing cylinder, first bolts, a fixing transverseplate, a first fixing pad, an air pressure telescopic rod, a second fixing pad and a pressing plate are arranged in a matched mode, so in the using process, by starting a pneumatic telescopic rod, thepneumatic telescopic rod can drive the pressing plate to conduct lifting pressing, then the ultrasonic fabric bonding mechanism for the full-servo mask machine plays a role in firm pressing, and maskfabric can be tightly attached.

The invention discloses a CT scanning machine for brain detecting. The CT scanning machine comprises a scanning frame, a scanning cavity, a scanning bed, a lifting device, a transformation structure,a headrest position adjusting device and a soft layer, wherein the scanning cavity is formed in the scanning frame, the scanning bed comprises a base, a bed board capable of moving forwards and backwards and arranged on the base, and a driving part for driving the bed board to move forwards and backwards, the bed board can penetrate through the scanning cavity when moving forwards, the lifting device is arranged on the base and used for adjusting the horizontal height of the bed board, the transformation structure is used for controlling the bed board to be transformed from a straight bed board form to a chair form, the headrest position adjusting device is arranged on the scanning frame and used for adjusting the position of a headrest, and the soft layer is arranged on the upper surfaceof the headrest and used for reducing the uncomfortable feeling of the head of a patient on the headrest. In the CT scanning machine, the position of the headrest relative to the scanning frame can beadjusted, and it can be effectively avoided that the patient feels uncomfortable due to the position of the headrest; the soft layer is arranged on the headrest, it can be effectively avoided that the headrest is too hard, and the comfortable feeling is enhanced.

The invention discloses an agricultural machine device with water-spraying and efficient soil-turning functions. The agricultural machine device comprises a frame, a water spraying assembly, a soil-turning assembly and a driving assembly, wherein the frame is arranged at one end of a driving body of the driving assembly, and the soil-turning assembly is arranged on the frame. A first connecting plate and a second connecting plate of the soil-turning assembly are respectively fixed on the two sides of the machine frame, the two ends of a second connecting rod penetrate through the first connecting plate and the second connecting plate respectively, and the two ends of the connecting rod are rotationally connected with the first connecting plate and the second connecting plate. One end of the connecting rod is fixedly connected to an output shaft of a soil-turning motor through a coupler, a roller is arranged on the second connecting rod in a sleeved mode, and the roller and the connecting rod are of a concentric structure. A plurality of rotary tillage blade sets are arranged on the surface of the roller in the length direction of the roller, and the water spraying assembly comprises a water storage tank, a water outlet pipeline and a fixing rod, wherein the water storage tank is arranged on the frame. Watering is carried out during soil loosening, so that the soil loosening efficiency is higher.

The invention provides a gravure roller which comprises a roller body and a rubber layer coated on the surface of the roller body. The rubber layer is formed by the steps: making a rubber material anduniformly coating the rubber material on the roller body to be cooled; the rubber material is composed of the following raw materials in parts by weight: 50-60 parts of butadiene-acrylonitrile rubber, 40-50 parts of chloroprene rubber, 10-20 parts of carbon fibers, 10-20 parts of glass fibers, 8-12 parts of carbon nano tubes, 20-30 parts of thermal cracking carbon black and 3-7 parts of an anti-aging agent. The gravure roller disclosed by the invention has the beneficial effects that (1) the rubber layer is coated on the surface of the gravure roller, so that the condition that the used surface material of the gravure roller is too hard is avoided, and damage to the material used for flexible package is reduced; and (2) due to the addition of the carbon nano tubes, the properties of the rubber layers, such as heat-conducting property, heat resistance, aging resistance, wear resistance, high modulus and the like can be improved, the elasticity of the used rubber is improved due to theaddition of the thermal cracking carbon black; and meanwhile, the hardness of the used rubber is improved due to the carbon fibers, the condition that the rubber layer is easily damaged by collision is avoided, and the service life of the rubber layer is prolonged.

The invention discloses an anti-stripping composite packaging material gold stamping process which comprises the following specific gold stamping process steps: step 1, selecting raw materials, determining composite packaging material gold stamping process steps and a corresponding raw material formula, and carrying out trial operation on production equipment; step 2, weighing ingredients according to requirements of a preparation method and a product formula, and weighing high-quality raw materials which are detected to be qualified in corresponding parts by weight and comprise 2.5-3.7 parts by weight of an adhesive, 8-9 parts by weight of a delustering agent, 3-5 parts by weight of an anti-stripping agent, 7-9 parts by weight of glass fibers, 4-6 parts by weight of a stabilizer and 61.1-67.3 parts by weight of polycarbonate; 3, adding corresponding parts by weight of polycarbonate and glass fiber into the reaction kettle, starting stirring, heating to 160 DEG C, keeping the temperature for 30 minutes, and adding corresponding parts by weight of a binder, a matting agent, an anti-stripping agent and a stabilizer; the gold stamping process for the composite packaging material is easy to operate, the raw materials are convenient to obtain, the manufacturing cost is low, and the composite packaging material has waterproof and anti-stripping effects and is suitable for being widely popularized and used.

The invention discloses a method for manufacturing a double-layer ultra-thin thermal fabric, which is characterized in that it adopts a double-layer weaving method to form a surface cloth and a bottom cloth at the same time, and uses connecting warp yarns to connect the surface cloth and the bottom cloth together; the specific steps include : first divide the warp yarns into surface warp yarns, bottom surface warp yarns and connecting warp yarns, and divide the weft yarns into surface weft yarns and bottom surface weft yarns; Form the bottom cloth, and connect the surface cloth and the bottom cloth with connecting warp yarns; wherein, two adjacent connecting warp yarns are not connected with the same weft yarn, and there are 5-8 warp yarn intervals between adjacent two connecting warp yarns. Compared with the prior art, the method for manufacturing a double-layer ultra-thin thermal insulation cloth provided by the invention has the characteristics of thin thickness and good thermal insulation effect. The present invention also provides a warm-keeping cloth obtained by the above-mentioned method.

The invention discloses an agricultural polyethylene nine-meter tubular product without an R port and double bevel angles, wherein a formula of raw materials is prepared in parts by weight: 65 to 80 parts of PVC (Polyvinyl Chloride), 20 to 30 parts of light calcium carbonate, 1 to 2 parts of CPE (Chlorinated Polyethylene), 0.8 to 1.5 parts of stabilizing agent, 0.2 to 0.5 parts of paraffins, 0.1 to 0.2 parts of stearic acid, and 0.05-0.1 parts of carbon black. According to the nine-meter tubular product without the R port and the double bevel angles provided by the invention, the tubular product avoids going bad due to too high or too low temperature when the R port is processed and the tubular product is carried out secondary heating and roasting, so that quality of the tubular product is severely influenced, and a situation that the R port is generally drained when a customer is using the tubular product occurs. Meanwhile, a pipe fitting is directly utilized without a rubber ring when a nine-meter tubular product without the R port and double bevel angles is arranged, so that the tubular product is convenient and quick to arrange, but a phenomenon of tipping or damaging the rubber ring is not happened; and furthermore, a draining problem caused by superhard rubber rings and asymmetrical butted pipes while construction is carried out in winter is overcome, and the draining problem caused by too soft and easily damaged rubber rings while the construction is carried out in summer is overcome as well.