198 results about "Crêpe paper" patented technology

A creping aid system for use on a creping cylinder, for example, a Yankee dryer, comprises a creping adhesive and a creping modifier, the combination comprising polyethylene.

A soft crepe paper machine comprises a wet section with a press section having a press defined by first and second press elements forming a press nip through which a press felt runs with a paper web. A suction roll is arranged in the loop of the press felt before the press nip at a distance from the second press element, and the felt with the web thereon runs around the suction roll with a large wrap angle. A drying cylinder forms the second press element. The first press element is either a solid press roll, a suction press roll, or a variable crown press roll.

A creped paper product is provided according to the invention. The creped paper product comprises a result of creping a web of fibers comprising synthetic fibers to provide a creped paper product having a stretch of at least 3% in the machine direction according to TAPPI test T494. The web of fibers can include about 0.5 wt. % to 100 wt. % synthetic fibers based on the total weight of the fibers. In addition, the web of fibers can contain about 0.5 wt. % to about 10 wt. % of synthetic fibers and about 90 wt. % to about 99.5 wt. % of cellulosic fibers. When the web of fiber includes a mixture of synthetic fibers and cellulosic fibers, the creped paper product can be provided having a tear strength in the machine direction according to TAPPI test T494 at least 10% greater than an otherwise identical creped paper product that does not contain synthetic fibers. A method for forming a creped paper product is provided according to the invention.

A composition comprising one or more polyaminoaminde epihalohydrin resins and one or more polyamides in a ratio of about 1:99 to about 99:1 based on polymer actives and use of the composition for creping paper webs.

A composition comprising one or more high molecular weight resins and one or more low molecular weight resins in a ratio of about 1:99 to about 99:1 based on polymer actives, wherein said high molecular weight resins are selected from the group consisting of glyoxylated polyacrylamide, crosslinked polyaminoamide and polyaminoamide-epihalohydrin resins having a molecular weight of about 100,000 to about 5,000,000 Dalton and the low molecular weight resins are selected from the group consisting of glyoxylated polyacrylamide, crosslinked polyaminoamide and polyaminoamide-epihalohydrin resins having a molecular weight of less than about 100,000 Dalton and wherein the mole ratio of epihalohydrin to secondary nitrogen atoms in the high and low molecular weight polyaminoamide-epihalohydrin resins is less than about 0.5. and use of the composition for creping paper webs.

The invention relates to a manufacturing method of a crepe paper product. A method for producing a paper towel comprises the following steps of: selecting 70-80 % of bleached softwood pulp and 20-30 % of straw pulp as raw materials; pulping the pulp by using a pulper, after beating the pulp by using a disc mill and adding auxiliary materials of an expanding agent, a softening agent and a wet strength agent to the pulp, molding, dehydrating and squeezing the pulp by using a Harper fourdrinier system; creping a wet paper sheet in a creping cylinder when the dryness of the wet paper sheet is 30-45 %, wherein an angle between a creping knife and the tangential line of a cylinder surface is 20-30 degrees, the cutting edge angle of a scraping knife sticking to the cylinder surface is 60-85 degrees, and the speed ratio of the creping cylinder and a heating cylinder is 1.15-1.18:1; and then drying the wet paper sheet by using the heating cylinder; and winding, rewinding and slicing the paper sheet so as to obtain a finished product. The method for producing the paper towel, provided by the invention, has the advantages as follows: through fiber variety and proportion selection and through the adoption of a wet creping process, the paper towel are produced; and the produced the paper towel has the advantages of tensile strength and proper air permeability; and the strength, wet strength, hydrophobicity, air permeability, flexibility and the like of the paper towel all reach higher standards; therefore, high quality and low cost are achieved.

The invention relates to an embossed sheet 10 made up of at least a first and a second ply 12, 14 of creped cellulose cotton of the type in which the first ply 12 has an embossed design 16 involving a first series of first projections 18 that form in particular first alignments and in which the apexes 32 are connected to the internal face 24 of the facing second ply 14 characterized in that these two plies 12, 14 each have a second embossed design 36 involving a second series of second projections 38, 40, and by the fact that the apexes 42, 44 of the second projections 38, 40 of a ply 12, 14 extended outward and are facing and near apexes 44, 42 of the second projections 40, 38 of the other ply 14, 12.

The invention relates to a manufacturing method of crepe paper, which comprises the steps of preparing wood pulp, beating, papermaking, corrugating, drying and the like. The wood pulp formed by mixing 5-30% of (w/w) hardwood pulp and 70-95% of (w/w) softwood pulp is matched with 0.5-10% of (w/w) wet strength agent, 1-10% of (w/w) sizing agent and more than 5% of (w/w) softening agent for use in the beating process, and the manufactured crepe paper is not damaged under the conditions of 125 DEG C, 5 atmospheres and more than 30 minutes and is especially suitable for the use in steam sterilization.

The invention belongs to the technical field of special paper manufacturing, and particularly relates to medical crepe paper body paper which is used for protecting a sterilization instrument to carry out sterile storage or conveying in a sterile state. The medical crepe paper body paper is characterized in that cotton pulp and needle-point leaf wood pulp are used as fibrous materials, and a traditional papermaking technology is used for manufacturing the body paper, namely beating, rinsing, pulp rectifying, papermaking, slitting and packaging. The cotton pulp is used as the main raw material, the needle-point leaf wood pulp is used as the auxiliary raw material, the characteristics that cotton fibers are tough in property, fine and smooth and soft in texture, good in folding resistance and abrasion resistance and absorption performance are used, and therefore produced paper is fine and soft and good in smoothness. Polyphenylene oxide polyphenyl ether (PPE) wet strength agents are added in pulp, and the strength, the stiffness, the smoothness and the water resistance of the crepe paper body paper are further improved. The medical crepe paper body paper is soft in hand feel, good in air permeability, high in strength, high in tensile strength, good in smoothness and good in water resistance.

A paper machine for manufacturing a web of soft crepe paper comprises a wet end (1) having at least one forming wire (4) for forming and supporting a web (7), and a drying section (2) with a through drying machine (13), a drying cylinder (17) and a perforated belt (19) running around a through-blow cylinder of the through drying machine and a transfer roll (21) at the drying cylinder, the web running through the through drying machine being exposed to drying air after its transfer from the forming wire. The belt (19) and the web (7) move from the through drying machine (13) to the drying cylinder (17) in a run that is free from mechanical means which would compress the web, whereby in said run the surface of the web which is exposed to the drying air faces away from the belt and remains free from contact with such means up to the drying cylinder.

A swing paper machine configured to manufacture both wet crepe paper web having a moisture content of at least 20% and dry crepe paper web having a moisture content less than about 15%. The paper machine includes a Yankee dryer having a paper web positioned thereon, a creping doctor blade configured to remove the paper web from the Yankee dryer as either the wet crepe paper web or the dry crepe paper web, a first reel, at least one carrier web, and at least one dryer. The wet crepe paper web is carried by the at least one carrier web to the at least one dryer for reducing a moisture content of the wet crepe paper web. The wet crepe paper web bypasses engagement with the first reel. The dry crepe paper web engages the first reel and is wound into a parent roll. The paper machine is changeable between manufacture of wet and dry crepe paper web without altering a position of the first reel and the at least one carrier web relative to the Yankee dryer.

A soft crepe paper machine comprises a wet section with a press section having a press defined by first and second press elements forming a press nip through which a press felt runs with a paper web. A suction roll is arranged in the loop of the press felt before the press nip at a distance from the second press element, and the felt with the web thereon runs around the suction roll with a large wrap angle. A drying cylinder forms the second press element. The first press element is either a solid press roll, a suction press roll, or a variable crown press roll.

The invention relates to a disposable medical sterilization packaging self-sealing bag, which comprises an upper layer plastic film and a lower layer plastic film which are sealed together by heat, and one side is provided with an opening, wherein, the upper layer plastic film is provided with air holes, the outer surface of the upper layer plastic film is also provided with a layer of creped paper, and the lower layer plastic film is a stripping composite film of epoxy polyester (PET) plus polyethylene (PE). The disposable medical sterilization packaging self-sealing bag has better packaging bearing effect and no paper scraps in the opening process of the package, thus achieving more secure opening. The packaging self-sealing bag can be widely used for sterilization anti-virus packaging of medical instruments, and provide protection after sterilization.

The invention provides a preparation method of a high temperature resistant crepe paper adhesive tape used for shoes. The preparation method comprises a step of pressure sensitive adhesive preparation and a step of coating; according to the step of pressure sensitive adhesive preparation, methylbenzene is used for removing water in cross-linking agent dibenzoyl peroxide, and dibenzoyl peroxide is mixed with an organic silicon pressure sensitive glue at a certain ratio for uniform stirring, cross-linking agent diisocyanate of acrylic ester pressure sensitive glue is dissolved in methylbenzene, and is mixed with acrylic ester pressure sensitive glue; and at last crepe paper is coated with the mixtures of the two pressure sensitive glues so as to obtain a final product; wherein the final product possesses high temperature resistance, and no glue is left after removing from shoe materials.

The invention relates to a preparation method of cylinder adhesive for crepe paper. The existing cylinder adhesive generally has defects such as poor film forming performance, poor film forming elasticity and poor remoistening performance and the like. By utilizing a water-soluble macromolecular polymer in a water phase, by adding a cross-linking agent and a plasticizer, the cylinder adhesive is prepared by virtue of local cross-linking of macromolecules and the compounding of the plasticizer. The cylinder adhesive prepared by the invention is stable in performance, has good adhesive force andfilm forming performance, can adjust the remoistening performance and softness of a film and can well improve the wrinkling performance of the crepe paper.

The present invention provides for a method of producing a creped paper and the crepe paper products made using this method. The method includes treating the surface of a crepe fiber web and/or surface of a Yankee drum dryer or cylinder with compositions containing a combination of hydrophobes and surfactants and wherein these compositions have been subjected to physical treatments to reduce the mean particle size to about 1 micron (μm) or less.

The invention relates to a model coil of an interturn insulation test of an oil-immersed power transformer and a winding method of the model coil. Specification parameters of the coil and a category of insulation paper are the same as those of the transformer. The coil is divided into an upper cake and a lower cake, wherein each cake is subjected to parallel winding by two paper wrapped wires A and B; two first tangling positions of a connecting part of the two cakes are wrapped with at least six layers of insulation paper; the two first tangling positions are located on an inner ring of the coil; a distance between the two first tangling positions is half perimeter of a lead wire of the inner ring; the head end and the tail end of each paper wrapped wire are connected together; the two paper wrapped wires serve as a high-voltage outgoing wire and a low-voltage outgoing wire respectively; an ellipse is defined by four leading-out terminals of the paper wrapped wires; the high-voltage outgoing wire and the low-voltage outgoing wire of the coil are arranged at the two ends of a long axis respectively; a short axis is coincided with a straight line formed by the two first tangling positions of the two paper wrapped wires and is equal to the diameter length of an excircle of the coil; and each of the paper wrapped wires from tangent points to end points of the leading-out terminals is additionally wrapped with at least six layers of crepe paper to reinforce insulation. The coil can effectively simulate breakdown characteristics of an interturn oil paper compound insulation system and a development process of electrical aging and thermal aging under a working condition of the large transformer, and is simple to manufacture.

The invention discloses a kitchen paper for absorbing excessive oil in fried food. Two sheets of crepe paper medium which are not embossed are integratedly laminated by dispersed configuration of binding agent which also includes foaming solidification substance which foams and expands due to heat at non-foamed status.