Environmentally friendly water-based adhesive mechanically laminated basketball

Abstract

Environmentally friendly water-based glue bonding mechanical leather basketball, which involves the technical field of leather products; it includes an environmentally friendly inner tube, the outer surface of the environmentally friendly inner tube is closely adhered to a polyester material cloth through natural latex glue, and the outer wall of the polyester material cloth is bonded through latex It has PU leather outer skin; it uses an environmentally friendly inner tube that meets the environmental protection standard of PAHs <1ppm; it improves the highest environmental protection standard that can be achieved in existing quantifiable production by a whole order of magnitude; it can pass the US FDA food safety regulations and the EU REACH regulations. 168 items of environmental testing for substances of high concern; environmental quality comparable to medical grade standards; the structural strength and fastness of the material formed by chemical cross-linking is much higher than that of physically cured and bonded products; high efficiency, requiring less technical proficiency of operators ; Water-based glue has a low unit price and no volatility, saving a lot of solvent costs; it has an environmental protection demonstration effect.

Description

technical field [0001] The invention relates to the technical field of leather products, in particular to an environmentally-friendly water-based adhesive bonded mechanically laminated basketball. Background technique [0002] Traditional glue bonded leather basketball (hereinafter referred to as glued basketball, please refer to the specific structure figure 1 ), from inside to outside is composed of inner tube, skeleton layer, rubber covering layer and leather 4-layer structure. The inner tube plays the role of storing gas and maintaining a certain airtightness. Wrap or wind an appropriate amount of chemical fiber fabric or yarn on the surface of the inner tube to form a skeleton layer, and then put the rubber into the mold to vulcanize into a semi-finished product—the middle tire. Grinding the surface of the middle tire > removing powder > applying solvent glue (using organic solvent to erode and swell the rubber surface), and the back of the leather is also coated w...

AI Technical Summary

Problems solved by technology

[0010] From a macro point of view, both are physical changes, which are easily affected by factors such as the extension of the material of the bonded object, the bending deformation of the impacted object, and the change of ambient temperature, which will cause the edge to warp and degumming, and it will also harden after hardening and curing. The characteristics of sports balls have lost the problem that sports balls should have a comfortable slapping feel and significantly reduced resilience. This is especially important for professional and high-level sports balls.

[0013] At present, with the gradual improvement of environmental protection awareness, various brands have successively developed and used so-called "environmentally friendly glue". Except for a few manufacturers that can produce adhesive basketballs that meet the PAHs<10ppm standard, which are specially sold to Europe, due to cost considerations, the market The overall pattern is still dominated by non-environmental protection products, the nature of the use of organic solvents has not changed, volatiles are poisonous to health, and the situation of air pollution is still continuing; warned by the "poisonous plastic runway" incident, develop and promote high-standard environmental protection products as soon as possible. of sports balls, there is no need to delay

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