36results about How to "Solve the problem of static electricity" patented technology

The invention discloses a spinning method for woolen spinning of rabbit wool and rabbit hair, wherein the rabbit wool and rabbit hair are taken as raw materials, a 100% rabbit wool-rabbit hair product is produced on a woolen-spinning high-count carding machine. The method comprises steps such as static electricity removal by water boiling, hair mixing, hair carding and yarn spinning. According to the invention, a hyper-normal small speed ratio on the woolen-spinning high-count carding machine only brings little fiber damage, and static electricity is removed through water boiling of rabbit hair and rabbit wool with application of an anti-static agent, so the problem of large static electricity in spinning is solved. The 15 count-16 count-38 count rabbit wool and rabbit hair yarns produced by the spinning method have unique characteristics of rabbit wool and rabbit hair including softness, smoothness, moist absorption, pilling avoidance, hair slip avoidance and comfortable use according to comprehensive detection results.

The invention relates to a plastic hose for a mine and a preparation method. The plastic hose comprises 90-110 parts of polyvinyl chloride, 28-34 parts of dibutyl phthalate, 36-44 parts of chlorinated paraffin-52, 3-5 parts of stabilizing agent, 1 part of stearic acid, 7-9 parts of flame retardant and 14-16 parts of carbon black. The preparation method comprises the following steps: adding the polyvinyl chloride into a stirrer; respectively adding half of the dibutyl phthalate, half of the chlorinated paraffin-52, half of the stabilizing agent and half of the stearic acid while stirring; adding the rest of the dibutyl phthalate, the rest of the chlorinated paraffin-52, the rest of the stabilizing agent and the rest of the stearic acid when the temperature of the materials is 50 DEG C; adding the lame retardant and the carbon black when the temperature of the materials is 75-80 DEG C; stopping stirring when the temperature of the materials is 85-90 DEG C; granulating to obtain plastic soft layer granular materials when the temperature of the materials is cooled to 50-60 DEG C; and feeding a mold and the plastic soft layer granular materials into an extruder and preparing a product.The plastic hose for the mine, provided by the invention, has the advantages of big crankshaft radius, easiness for bending, high antistatic coefficient and good flame-retardant effect, good sealing effect; and the preparation method is simple and convenient and is convenient to operate.

The invention relates to a production method of a polyester film. The production method comprises the following steps of (1) respectively feeding an antistatic super-bright polyester slice at an upper surface layer, an antistatic super-bright polyester slice at a lower surface layer and a super-bright polyester slice at an intermediate core layer into a three-layer co-extrusion bi-directional stretching device; (2) extruding and melting modified super-bright polyester slices at the upper surface layer and the lower surface layer and the super-bright polyester slice at the intermediate core layer at the temperature of 260 to 280 DEG C to obtain a melt, cooling the melt and casting the cooled melt to generate PET pieces at the temperature of less than 30 DEG C; (3) preheating the cast PET pieces, longitudinally stretching at the temperature of 80 to 100 DEG C, cooling, and setting the cooled PET pieces at the temperature of less than 35 DEG C; (4) then preheating the PET pieces, and transversely stretching at the temperature of 86 to 110 DEG C, setting and crystallizing the set PET pieces at the temperature of 150 to 200 DEG C; and (5) finally removing waste edges of the PET pieces, performing corona treating on the PET pieces, detecting the thickness of each PET piece, and coiling the PET pieces to form the antistatic polyester film with the thickness of 23 to 75 micrometers. Nano zinc oxide is chemically grafted into a PBT (polybutylece terephthalate) material, so that the antistatic effect of a product can be improved.

The invention discloses a production technology of antistatic lining silk. The technology includes first weaving polyester yarns and conductive fiber, and enabling the fully drawn yarns and the conductive fiber to form a base fabric of the lining silk; then subjecting the base fabric of the lining silk to seam allowance, oil stain and dirt removing and softening treatment, acid neutralization, washing and drying to form gray cloth of the lining silk; and finally arranging, inspecting and packaging the gray cloth of the lining silk to form a finished product. According to the production technology, the polyester yarns and the conductive fiber are adopted as raw materials, the cost and the quality of the lining silk are both considered simultaneously, the conductive fiber serves directly as the raw material, therefore the antistatic problem of the lining silk is solved, the softness of the lining silk is improved due to the oil stain and dirt removing and softening treatment, acid neutralization and washing treatment, the sizing and dirt durable functions are increased after the drying and arranging treatment, appropriate baking temperature and wind pressure are adopted, the production efficiency is improved when the product quality is guaranteed.