31results about How to "Good fleece" patented technology

The present invention relates to rotary cup spinning process of polypropylene roving with short polypropylene fiber of fineness 4.5-6.5 dtex, length 51-76 mm, and surfactant of 0.6 %. The technological process includes carding, slivering, four times of needle combing and rotary cup spinning. The present invention adopts middle and long fiber with less depilation, good teasing and powerful adhesion, and wool spinning and semi-combing apparatus in fore spinning with favorable spinnabliltiy of middle and long fiber and no damage to the physical performance of fiber. The present invention produces middle and long polypropylene roving of 58.8-1100 tex, and the polypropylene roving is non-toxic, smell-less, not water absorbent, acid, alkali and organic solvent resistant, plumpy in hand feeling and fluffy, and may be used widely.

The invention discloses a three-dimensional block corduroy fabric and a manufacturing method thereof. It is woven from one set of warp yarns and three sets of weft yarns. The three sets of weft yarns are respectively the ground weft, the first pile weft and the second pile weft; the ground weft and the warp are interwoven The ground texture of the fabric; the fabric has two side units and a top surface unit corresponding to the three-dimensional block pattern; one side unit is that the first pile weft floats on the cloth surface and the second pile weft sinks and interweaves with the ground pattern; the other side unit The second pile weft floats on the cloth surface while the first pile weft sinks and interweaves with the ground pattern; the top surface unit is that the first pile weft and the second pile weft both float on the cloth surface to form a mixed floating weft. The woven semi-finished fabric is dyed, and finally the corduroy with the two side units of different colors and the top unit of mixed colors showing a three-dimensional square two-color pattern is obtained. This new model thoroughly improves the traditional straight corduroy into a three-dimensional square pattern, which has multi-color feeling and novel performance. It creates a new style idea for corduroy products and meets the diverse needs of the public.

The invention discloses a suede high-elasticity fabric structure. The suede high-elasticity fabric structure is characterized by comprising down fabrics and a suede high-elasticity fabric for connecting two adjacent down fabrics; the suede high-elasticity fabric is prepared from the following materials: polyester fibers, polyurethane fibers, composite antibacterial agents and dipping glue. The suede high-elasticity fabric structure has the beneficial effects that the island-type ultrafine polyester fibers and the polyurethane fibers are woven into mixed fibers, thick fluffs can be formed on the surface of the fabric through the island-type ultrafine polyester fibers, and the napping effect is good; the fluffs are wash-resisting and wear-resisting, and can be dyed into different colors; thepolyurethane fibers have excellent elasticity and high resilience, can quickly restore to original shapes, and have high resistance to acid, alkali, sweat and dry cleaning; the composite antibacterial agents is immersed into tissues of the mixed fibers through dipping, and the antibacterial ability of the suede high-elasticity fabric structure is improved.

The invention provides a wet-processed yambar synthetic leather and a preparation method thereof. The wet-processed yambar synthetic leather comprises: a base cloth composed of a fabric sheet; a surface layer based on a water-based polyether polyurethane coating composition, the surface layer is located on the On the base cloth, the surface layer has a porosity of 80-90%, and the water-based polyether polyurethane coating composition comprises: water-based polyether polyurethane 70-85wt%; fiber powder 5-10wt%; first foaming agent 3 -6wt%; second foaming agent 3-5wt%; dispersant 1-3wt%; wetting agent 0.5-1.0wt%; bentonite 1-2wt%; wherein, the fiber powder is composed of 95-97wt% cellulose and 3-5wt% fatty acid ester composition. The wet-process yambar synthetic leather provided according to the present invention has excellent air and moisture permeability, ideal yellowing resistance, and a fine and velvety surface.

The present invention discloses an environmentally friendly anti-siphon afterfinishing method for a suede microfiber synthetic leather. The method is as below: (1) immersing the dyed microfiber synthetic leather into an anti-siphon treatment solution, and padding; (2) then drying the product obtained in the step (1), cooling, rolling and crumpling to obtain the anti-siphon suede microfiber synthetic leather. The anti-siphon treatment solution for suede microfiber synthetic leather has a pH value of 4-6, and comprises the following components by weight: 5-10 parts of a fluorine-free waterproof finishing agent, 2-5 parts of reactive polysiloxane, 1-3 parts of an aqueous crosslinking agent and 100 parts of water. The agent of the invention uses the fluorine-free environment-friendly waterproof finishing agent without APEO, PFOA or PFOS, and the ultrasonic technology; and the obtained microfiber synthetic leather achieves anti-siphon effect of rise of impregnating solution of less than 1cm after 2h immersion, and has good creases and velvety sense, so as to improve the grade of the suede microfiber synthetic leather.

The invention discloses an additive for chain type texturing of monocrystalline silicon wafers. The additive comprises, by mass, 0.2-2.0% of polyethyleneimine, 0.5-10% of fucosan, 0.1-0.5% of polyacrylamide, 0.1-2.0% of polyether, amine and the balance of water. The additive disclosed by the invention is added into a texturing liquid for chain texturing of monocrystalline silicon wafers, so that the texturing time of chain texturing can be shortened to 3min, the productivity can be improved, the reflectivity of textured wafers can be kept at 11-12% and is basically equivalent to that of textured wafers obtained by groove texturing, and silicon wafers have better conversion efficiency.

The invention discloses an environment-friendly velvet film for shoes and a preparation method thereof, wherein the environmental-friendly velvet film for shoes sequentially comprises a surface velvet layer, a water-based PU surface layer and a thermosetting two-component solvent-free foaming layer from top to bottom. Floor. The invention adopts water-based PU resin and solvent-free resin, does not add other toxic and harmful organic chemical solvents, and is environmentally friendly. The film provided by the present invention is printed on the water-based PU velvet layer to improve the velvet feel of the surface layer of the film. On the premise of improving the velvet feel of the surface layer, a wear-resistant additive is added to the surface layer polyurethane to improve the wear-resistant and scratch-resistant performance. At the same time, the film itself has high hydrolysis resistance and high peel strength. It is a good substitute for four-way elastic synthetic leather for shoes.

The invention provides a method for preparing water-based yangbuck with lustring effects. The method includes steps of 1), coating and scraping water-based wet base slurry on base cloth, transporting the base cloth into a coagulating tank, coagulating the base cloth and drying the base cloth by means of baking to obtain water-based base; 2), coating water-based yangbuck materials on release paper, drying the water-based yangbuck materials and the release paper to form yangbuck clinging surfaces, adhering the water-based base onto the yangbuck clinging surfaces, then drying the yangbuck clinging surfaces by means of baking, cooling the yangbuck clinging surfaces and peeling the release paper to obtain artificial leather by means of preparation; 3), placing the artificial leather in a baking oven and foaming the artificial leather at the high temperature to obtain yangbuck by means of preparation; 4), carrying out color change treatment on the yangbuck by the aid of a printing machine; 5), preparing lustring materials, adding the lustring materials into the printing machine and carrying out lustring treatment on the yangbuck. The method has the advantages that the surfaces of the water-based yangbuck are high in leather feeling and good in velvet feeling and feel soft, and the excellent lustring effects can be realized; the surfaces of the yangbuck are bulky, thick, smooth, straight and bright and have plump pile after lustring treatment is carried out on the yangbuck, and market requirements on high-grade yangbuck can be met.