CN-122012821-A - Coating process of high-wear-resistance sports vamp leather

Abstract

The invention relates to a coating process of high wear-resistant functional sports vamp leather, which comprises the following steps of leather blank, breaking, net tensioning, grinding, powder cleaning, primary coating 1, primary coating 2, top coating, hot polishing, breaking, top coating and finished product. The compound resin system forms a synergistic effect with the wear-resistant components such as graphene oxide, nano titanium dioxide and the like, a coating with compact structure and excellent mechanical property is constructed, the external force effects such as friction, scraping and the like in daily wear are effectively resisted, the wear-resistant times of vamp leather are greatly improved, and the service life of the sports shoes is remarkably prolonged.

Inventors

• PAN DANDAN
• FU YUEBING
• SUN JINGYUAN
• XU JIANAN
• WEN HUITAO
• WU MEILI

Assignees

• 兴业皮革科技股份有限公司

Dates

Publication Date

20260512

Application Date

20251229

Claims (2)

1. 1. A coating process of high wear-resistant functional sports vamp leather is characterized by comprising the following steps of coating a leather blank, breaking, screening, grinding a surface, cleaning powder, priming coating, coating 1, coating 2, top coating, polishing, breaking, top coating and obtaining a finished product, The paint formula of the bottom coating comprises 500-600 parts of water, 150-180 parts of water-based penetrating agent, 180-200 parts of primer, 80-100 parts of ethylene glycol monobutyl ether and 80-100 parts of superfine particle acrylic filling resin; The paint formula of the top coating 1 comprises 150-180 parts of water, 40-50 parts of aqueous penetrating agent, 80-100 parts of ethylene glycol monobutyl ether, 50-60 parts of ultrafine particle acrylic filling resin, 15-20 parts of flatting agent, 80-100 parts of acrylic resin, 50-60 parts of aqueous acrylic resin, 115-120 parts of aqueous acrylic resin dispersion liquid, 60-70 parts of aqueous polyurethane resin, 150-180 parts of lacquer skin comprehensive resin, 80-100 parts of medium soft polyurethane resin, 50-60 parts of aqueous flatting agent, 30-40 parts of emulsifying wax agent and 180-200 parts of pigment paste; The paint formula of the top coating 2 comprises 300-350 parts of water, 40-50 parts of water-based penetrating agent, 50-60 parts of ethylene glycol monobutyl ether, 50-60 parts of superfine particle acrylic filling resin, 10-20 parts of leveling agent, 50-60 parts of acrylic resin, 50-60 parts of water-based acrylic resin, 80-100 parts of water-based acrylic resin dispersion liquid, 60-70 parts of water-based polyurethane resin, 80-100 parts of lacquer coat comprehensive resin, 80-100 parts of medium soft polyurethane resin, 40-50 parts of water-based matting agent, 30-40 parts of emulsifying wax agent, 180-200 parts of pigment paste and 30-40 parts of multifunctional nitrogen coating agent; the top-coating paint comprises 550-600 parts of water, 300-350 parts of top-coating agent, 300-350 parts of polyurethane aqueous solution, 50-60 parts of handfeel agent, 10-20 parts of multifunctional nitrogen finishing agent, 0.6-2.0 parts of functionalized graphene, 0.2-0.5 part of nano titanium dioxide and 5-10g of finishing amount; The coating amount of the bottom coat is 15-20g, the coating amount of the top coat 1 is 10-15g, the coating amount of the top coat 2 is 10-15g, and the coating amount of the top coat is 5-10g.
2. 2. The coating process of the high wear-resistant functional sports shoe upper leather according to claim 1, wherein the functionalized graphene is prepared by adding graphene oxide into N, N-dimethylformamide, performing ultrasonic treatment to obtain a uniform suspension, adding excessive hexamethylene diisocyanate, reacting for 24 hours under the protection of nitrogen, adding 3-aminopropyl-trimethylsilane for 1%, reacting for 1 hour, and centrifuging to obtain the functionalized graphene.

Description

Coating process of high-wear-resistance sports vamp leather Technical Field The invention relates to the technical field of leather manufacturing, in particular to a coating process of high-wear-resistance sports vamp leather. Background With the rapid development of the sports shoe market, consumers increasingly have increased performance requirements for sports shoes, particularly the wear resistance of upper leather. In the daily wearing process of the sneaker, the vamp leather needs to bear the external force actions such as friction, bending, stretching and the like frequently, and the traditional vamp leather coating process mostly adopts a single resin coating or simple coating combination, so that the problems of insufficient wear resistance, short service life, easy coating falling off, cracking and the like exist. In the existing coating process, the compatibility and synergistic effect of the coating materials are poor, the granularity of the filling resin is large, so that the binding force between the coating and the leather blank is not strong, and meanwhile, effective leveling and wear-resisting reinforcing components are lacked, so that the surface of the vamp leather is easy to scratch and abrade after long-term use, and the appearance and the service performance of the sports shoes are affected. In addition, the partial coating process has the defects of complicated working procedures, low coating efficiency, poor environmental protection and the like, and is difficult to meet the development requirements of green, high efficiency and high performance in the modern tanning industry. Therefore, developing a sport vamp leather finishing process which has high wear resistance, strong adhesive force, long service life and environmental protection has important practical significance and market value. Disclosure of Invention The invention provides a coating process of high-wear-resistance sports vamp leather, which aims to solve the problems of insufficient wear resistance, short service life, easy falling off of a coating, cracking and the like of the conventional vamp leather. The invention adopts the following technical scheme: A process for coating the high-wear-resistant sports vamp leather includes such steps as coating leather blank, breaking, stretching net, grinding, cleaning powder, priming, coating 1-2-coating, top coating, ironing, breaking, top coating, The paint formula of the primer comprises 500-600 parts of water, 150-180 parts of aqueous penetrating agent (PT-4235, guangzhou white cloud division of Style fine paint (Suzhou) Co., ltd.), 180-200 parts of primer (Astacin matrix UH TF, basf Co.), 80-100 parts of ethylene glycol monobutyl ether (BCS, guangzhong Taku chemical Co., ltd.), and 80-100 parts of ultrafine particle acrylic filling resin (DOWELLIC RA-111, sichuan Daway science and technology Co., ltd.); The paint formulation of the top coat 1 comprises 150-180 parts of water, 40-50 parts of aqueous penetrant (PT-4235), 80-100 parts of ethylene glycol monobutyl ether (BCS), 50-60 parts of ultrafine particle acrylic filler resin (DOWELLIC RA-111), 15-20 parts of leveling agent (AQUADERM Fluid H, langshen (Wuxi) chemical Co., ltd.), 80-100 parts of acrylic resin (LA 021, toguan's trade Co., ltd.), 50-60 parts of aqueous acrylic resin (RA-78-886, stokes fine paint (Stokes) limited Guangzhou white cloud division Co., ltd.), 115-120 parts of aqueous acrylic resin dispersion (Melio Resin A-946-ID liq, guangzhou white cloud division Co., ltd.), 60-70 parts of aqueous polyurethane resin (RU-3901 Unires, guangzhou white cloud division Co., ltd.), 60-70 parts of paint coat comprehensive resin (RU-0, jinjiang, guangxi-180, guangxi, kyun (Kyowa) and UK, guangxi) 0-40, guangxi (Kyowa) fine paint (Kyowa) 50-60 parts of water-100, guangxi (Guangxi) fine paint (Kyowa) and (Kyowa) fine paint (Kyowa) 60-70 parts of water-soluble polyurethane resin (Rut), 180-200 parts of pigment paste (Langsheng (tin-free) chemical industry Co., ltd); The paint formula of the top coating 2 comprises 300-350 parts of water, 40-50 parts of an aqueous penetrating agent (PT-4235), 50-60 parts of ethylene glycol monobutyl ether (BCS), 50-60 parts of an ultrafine particle acrylic filling resin (DOWELLIC RA-111), 10-20 parts of a leveling agent (AQUADERM Fluid H), 50-60 parts of an acrylic resin (LA 021), 50-60 parts of an aqueous acrylic resin (RA-78-886), 80-100 parts of an aqueous acrylic resin dispersion (Melio Resin A-946-ID liq), 60-70 parts of an aqueous polyurethane resin (RU-3901 Unires), 80-100 parts of a paint skin synthetic resin (LC-1540), 80-100 parts of a medium soft polyurethane resin (RU-4040), 40-50 parts of an aqueous matting agent (WD-77-401), 30-40 parts of an emulsifying agent (HF-505), 180-200 parts of a pigment paste, and 80-100 parts of a multifunctional nitrogen agent (UAQLEN) which is used for coating fine paint (Bructosu, st, inc.; The top coating comprises 550-600 parts of water, 300-35