30results about How to "Improve the adhesion firmness" patented technology

The invention belongs to the technical field of aluminized films, and discloses a low-friction coefficient high-resistance aluminized film. The aluminized film is characterized by comprising a heat-seal layer, a first core layer, a second core layer and an aluminized layer which are arranged in sequence through four-layer co-extrusion casting the mass percentages of the heat-seal layer, the first core layer, the second core layer and the aluminized layer are 21%, 30%, 30% and 19% respectively; the heat-seal layer is made of ternary random copolymerization polypropylene (PP) resin and a modifying agent; the adding amount of the modifying agent is 10-15% of the mass of the ternary random copolymerization polypropylene (PP) resin; the first core layer is made of polypropylene resin; the second core layer is made of polypropylene resin; the aluminized layer is made of copolymer resin and a reinforcing agent; the adding amount of the reinforcing agent is 2-5% of the mass of the copolymer resin. The aluminized film prepared according to the method is relatively low in friction coefficient, and relatively high in heat-seal strength.

The invention discloses a preparation method of a polysulfonamide inflaming-retarding comfortable elastic knitted plus material. The preparation method comprises the following steps of (1) preparation of functional inflaming-retarding yarn: adopting covering yarn of which a polyamide fiber is a yarn core externally wrapped by polysulfonamide fiber as first yarn; carrying out cabling on a vinyl chloride-acrylonitrile copolymer fiber and a polytetrafluoroethylene fiber to obtain second yarn; using cationic modified polyester low stretch yarn as third yarn; (2) weaving: weaving the treated first yarn, second yarn and third yarn by adopting a knitting process into base cloth; (3) dyeing: carrying out dyeing on the base cloth by adopting cationic dye and active dye; (4) post treatment: subjecting the dyed base cloth to dehydration, oven-drying and setting treatment, so as to obtain the polysulfonamide inflaming-retarding comfortable elastic knitted plus material. The polysulfonamide inflaming-retarding comfortable elastic knitted plus material prepared by the preparation method is obvious in the superposition functions of fire resistance, comfortableness and elasticity, good in air permeability, comfortable to wear, excellent in color fastness performance, high in environmental friendliness and further simple in preparation process, and has a favorable market prospect.