Environmentally friendly water-based adhesive mechanically laminated basketball

Abstract

The invention discloses an environment-friendly water-based adhesive bonded and mechanical leather adhered basketball, and relates to the technical field of leather products. The environment-friendly water-based adhesive bonded and mechanical leather adhered basketball comprises an environment-friendly inner tube. Polyester material cloth is tightly adhered on the outer surface of the environment-friendly inner tube by natural latex and glue, and PU (polyurethane) leather skin is adhered on the outer wall of the polyester material cloth by latex. The environment-friendly water-based adhesive bonded and mechanical leather adhered basketball has the advantages that the environment-friendly water-based adhesive bonded and mechanical leather adhered basketball comprises the environment-friendly inner tube and accordingly conforms to environmental protection standards that the contents of PAHs (polycyclic aromatic hydrocarbons) are lower than 1 ppm; the environment-friendly water-based adhesive bonded and mechanical leather adhered basketball can pass environmental protection detection on 168 substances of very high concern, and the 168 substances are specified by the food safety regulations of the American FDA (food and drug administration) and the REACH (registration, evaluation and authorization of chemicals) of the European Union; the environment-friendly quality of the environment-friendly water-based adhesive bonded and mechanical leather adhered basketball is comparable to medical class standards; the structural strength and the fastness of materials formed by means of chemical cross-linking are far higher than the structural strength and the fastness of physically solidified and adhered products; the environment-friendly water-based adhesive bonded and mechanical leather adhered basketball is high in efficiency, and requirements on technical proficiency of operators can be lowered; water-based adhesive is low in purchase unit price and free of volatilization, and accordingly large quantities of solvent costs can be saved; environment-friendly demonstration effects can be realized.

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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