Antiskid plectrum of stringed instrument
A stringed instrument, anti-skid technology, applied in the direction of stringed instruments, musical instruments, instruments, etc., can solve the problems that cannot fundamentally eliminate the adverse effects of sweat, difficult to pinch fingers, fatigue of picks, etc., to eliminate adverse effects, slow down finger fatigue, prevent Shedding effect
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[0019] Preparation of starch-acrylonitrile graft copolymer: Add 1330ml of water and 94g of corn starch into the reaction kettle, stir evenly, heat to 60°C for gelatinization for half an hour, after cooling to 20°C, add 97g of acrylonitrile, cerium nitrate Ammonium solution 75ml, the mixture was reacted at 20-50°C for 1 hour, then neutralized with 5mol / L HCL solution to pH 6-7, filtered, washed, and vacuum-dried at 65°C to obtain starch acrylonitrile class of graft copolymers.
[0020] Preparation of superabsorbent resin inner layer (2): mixing starch acrylic acid graft copolymer and paper pulp at a ratio of 1:1 by weight, pressing into tablets, and drying to prepare superabsorbent resin inner layer (2).
Embodiment
[0021] Example: such as figure 1 , figure 2 As shown, the non-slip pick of a stringed instrument includes a triangular chamfered sheet formed by the hand-held area (1) and the pizzicato area (4). The left and right surfaces of the hand-held area (1) are respectively provided with a A scaly superabsorbent inner layer (2) made of branch copolymer and pulp, and a pure cotton non-woven fabric layer (3) is provided on the outer surface of the superabsorbent resin inner layer (2).
[0022] The present invention adopts following steps to process:
[0023] A. Electrostatic deposition is used to plate the superabsorbent resin inner layer (2) on the inner surface of the pure cotton non-woven fabric layer (3);
[0024] B. Use hot melt adhesive to bond step A to the left and right surfaces of the handheld area (1).
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