Earphone sleeve leather and preparation method thereof
An earphone, dry process technology, applied in earmuffs, textiles and papermaking, etc., can solve problems such as increasing difficulty, increasing cost and difficulty in production
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[0037] A method for preparing leather for earphone covers, which is characterized in that it includes polyurethane wet-process resin, dimethylformamide, wood powder, cell regulator, color paste, four-way elastic ultra-soft and ultra-thin base cloth, and release paper , Polyurethane surface layer resin, polyurethane adhesive layer resin, butanone, additives, environmentally friendly halogen-free pigments;
[0038] Including the following steps:
[0039] (1) Wet mixing ingredients:
[0040] a. Stir 5kg of dimethylformamide and 2kg of color paste at high speed for 60 minutes, filter for later use, and record it as material a;
[0041] b. Stir 40kg of dimethylformamide and 30kg of wood powder for 30 minutes, let it stand for 20 minutes and then mix it with material a evenly for later use, which is recorded as material b;
[0042] c. Add 100kg of polyurethane wet-process resin to material b and stir for 20 minutes, then defoam and filter and seal for use, which is recorded as mat...
Embodiment 2
[0054]Embodiment 2, a kind of earphone cover is used leather, it is characterized in that, comprises veneer layer, adhesive layer, foam layer and base cloth, the lower layer of veneer layer is connected with adhesive layer upper layer, and adhesive layer lower layer and foam layer upper layer Connection, the lower layer of the foam layer is connected with the upper layer of the base fabric.
[0055] In this embodiment, the dry-process veneer layer includes polyurethane surface layer resin, dimethylformamide, methyl ethyl ketone, additives and halogen-free toner, and its mass components are: polyurethane surface layer resin 90 parts, 30 parts of dimethylformamide, 50 parts of butanone, 0.8 parts of additives, and 5 parts of halogen-free toner. The structure of the improved dry-process veneer layer mainly improves the dry-process fabric resin with extremely low modulus compared with the conventional dry process, and has the characteristics of skin feeling.
[0056] In this embo...
Embodiment 3
[0077] Embodiment 3, a kind of earphone cover is used leather, it is characterized in that, comprises veneer layer, adhesive layer, foam layer and base cloth, and veneer layer lower layer is connected with adhesive layer upper layer, adhesive layer lower layer and foam layer upper layer Connection, the lower layer of the foam layer is connected with the upper layer of the base fabric.
[0078] In this embodiment, the dry-process veneer layer includes polyurethane surface layer resin, dimethylformamide, butanone, additives and halogen-free toner, and its mass components are: polyurethane surface layer resin 100 20 parts of dimethylformamide, 30 parts of butanone, 0.2 parts of additives, 3 parts of halogen-free toner. The structure of the improved dry-process veneer layer mainly improves the dry-process fabric resin with extremely low modulus compared with the conventional dry process, and has the characteristics of skin feeling.
[0079] In this embodiment, the adhesive layer ...
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