Shanghai Daoqin Plastics Co., Ltd.

, and polyurethane ester resin hydrophilic and water in, solvent agent （DMF） by water 置换, polyurethane ester resin 逐渐凝 solid, from formed more property film,即 micro polyurethane ester 粒面层, upper is 贝斯(英文BASS 译音), its is 基材(semi formed product 革) 意思,贝斯经 dry method or surface 经整饰 rear,如 surface printing, pressure 花, abrasion and other process rear, can formed is polyurethane ester combined formed formed product. 　　 wet method polyurethane ester combined formed tool has good gas, wet property, slip 爽丰满 手感, excellent machine strong/high degree, especially is from structure upper 近似天然 leather, wet method combined formed 革贝斯 production process can separation is mono coating method, method and coating method types, use has textile and 无纺布两 type. （一）, mono coating method polyurethane ester 贝斯1, production process process/workflow 　　基布开卷经储布架进入浸槽浸 wet, again through pressure will water extrusion large separation, through 烫平轮 remove separation water separation, meanwhile will 基布烫平, rear in coating machine upper coating combined material, again 进入凝 solid formed film, again separation water 洗, dry type, cooling formed large 卷贝斯. 2, main/primary raw materials 　　A, polyurethane ester resin: usually is wet method resin, abrasion specialized, specialized and resistant resin and other, resin modulus （100%） from 2.0MPa至30.0MPa不 and other. according to soft hardness, selection high low modulus grade resin, mono coating due to small, density large, add a large amount of powder and other filler, product used for cold 区时, need separation product resistant property can, using/adopting resistant property can good resin. 　　B, powder: in mono coating in use amount powder, can reduce product cost, also can in solid process in to skeleton/framework function, different Model/Grade injection molding processing processing 家 木质 powder, its 膨胀系数 different, this in and other other material same lower, its viscosity value same, 也直接 effect/influence to product quality and versus cost, powder fine degree requirements generally need to 400目 above. 　　C, anionic surface active property agent （C-70, C-90）: also is fast speed agent, tool has hydrophilic water property. main/primary to add fast DMF and water speed degree, improve/increase production speed degree, meanwhile make fine 密化. anionic surface active property agent can formed 球形泡孔 structure, increase elastic property, gas property, wet property. generally add amount in 0.5%—2.5% between, add more, coating easy 反卷, slip property decline. 　　D, non surface active property agent （S-80）: tool has hydrophobic water property, can surface solid speed degree, can make internal DMF and water more fast 交换, can formed 针状 泡孔 structure, add amount is 1%—3%, large production speed degree effect/influence. 　　E, solvent agent （DMF）: DMF used for solvent understanding and dilute polyurethane ester resin. 直接配 combined resin, adjustment combined liquid viscosity, DMF use amount large 时, in solid process in, improve/increase solid speed degree and increase large structure. 　　F, color 浆: selection mono solvent agent DMF system product, usually add amount is 5%—8%. G, 基布: mono coating use main/primary 以平织布, mono 面起毛布 is 基础, its 纱支含棉 amount how much effect/influence to and water time. 3, production process as key points A, made polyurethane ester material: 　　 mono coating requirements material viscosity relatively high, generally control in 7000—9000Pa.s. material add material more is important. generally in container add 入DMF, rear add 入木质 powder, use machine separation 搅拌约10min left right, ensure powder dispersion 于DMF in. DMF and polyurethane ester mixed combined in 一起搅拌, rear add 入木质 powder, make powder 结团, can separation dispersion resin solvent liquid in, make 滤, 结团 木 powder easy 堵塞 滤网, heavy method use, made material viscosity combined requirements rear, will utilizing true 空脱泡 machine 脱泡40min, material viscosity high 时, can 适当延 long time, most rear use 60—100目 滤网 滤. B, 基布浸 water 处理: 　　基布发送, 经 储布架入浸 water 槽, rear use pressure 辊 基布 in water separation dry, 经烫平轮 will 基布烫 semi dry. water function has 两, is improve/increase material wet degree, anti material 渗入基布组织 inner, generate phenomenon, Raw Materials. is for property relatively 差 基布, water in remove water outer, also add 入1% anionic surface active property agent, improvement hydrophilic water property, improve/increase appearance quality. C, coating solid: 　　经处理 基布, through coating material 台, using/adopting coating coating method material mixed combined liquid uniform coating in upper. in use 起毛布 is 底基时, need attention/notes 起毛布 surface direction, coating, surface light 洁. coating, surface coarse 糙. coating thick degree thin, can cover/cap 布毛, surface coarse 糙, 手感发 sheet/plate elastic property, coating thick easy formed 泡孔不匀,面层 and separation and other defect. solid in solid liquid is water and DMF组 formed, DMF content generally is 20%---25%. 　　 production abrasion 皮贝斯时, DMF content control in 10%--15% between. high content effect/influence solid speed degree, but also formed water in solid content increase, concentrated degree low not only increase DMF recycling cost, also make surface shrinkage rate increase large, 导致卷边DMF迅 speed water in 迁移, water to material in speed degree relatively slow. in material solid process in generate shrinkage, make coating thin, has 一定程 degree 卷边. is anti 止卷边,一方面 need ensure solid in DMF concentrated degree,另一方面 in material can more add S-80, surface solid, increase large 泡孔. also can use 夹子夹住布边 and increase force methods anti 止卷边. 　　凝 solid temperature degree generally is normal temperature, can add temperature, usually control in 25℃, high temperature degree make coating fracture strong/high degree decline, film modulus decline, surface uniform degree 变差, micro structure uniform. coating material from water solid to solid solid full, large need 8—15min, this and formulation, resin grade, water in DMF concentrated degree and temperature degree and other has 密切关系. material in full solid front, can and 导辊接触, 否则会 loss 伤面层. D, water 洗, dry, 卷取: 　　 polyurethane ester coating material in full solid rear, its 泡孔层 inner still 残留一定数 amount DMF, this DMF必 must in water in strong/high 行脱出, remove dry 净时, dry rear formed surface has and other defect. in process control upper need ensure most rear water inner DMF content in 1% below/following, this can ensure in DMF脱 remove dry 净, is make DMF speed degree add fast and decrease/reduce 残留于贝斯 in DMF, water generally need add temperature as. 　　实践证明, water temperature degree for DMF speed degree and in DMF残留 amount effect/influence very large. in water process in, especially is in water rear semi separation, due to in in DMF already very less. therefore, in water water in time for DMF洗净程 degree effect/influence 远不如挤 pressure for its effect/influence large. water dry rear, is remove water separation, dry 处理. temperature degree high, generally ultra- 150℃, in Imported 处, 因贝斯含 has a large amount of water separation, temperature degree can high, water separation 蒸发, in rear temperature degree can low, generally 120℃即 can. （二）, 起毛布浸渍 polyurethane ester 贝斯1, production process process/workflow 起毛布开卷, through 烫平辊 add hot remove water separation rear 进入含浸槽, polyurethane ester combined material. through and 间隙辊 rear, more material 进入凝 solid 槽, formed film, through pressure extrusion large separation DMF water solvent liquid, again water 洗, dry, is 贝斯. 2, main/primary raw materials 　　A, polyurethane ester resin: and mono coating method 说明一致. 　　B, powder: in 含浸贝斯 formulation in, powder use amount relatively small, generally ultra- 10%, fine degree in 400目 above. 　　C, additives: in 含浸贝斯 formulation in, remove use C—70 and S-80 additives outer, also has below/following types additives. 　　① defoamer: main/primary formed separation is liquid has machine silicon, main/primary function is remove material in gas, decrease/reduce surface 针孔. generally has machine silicon and DMF versus solvent property 差, application. design formulation 时, selection and DMF has versus solvent property, can force strong/high specialized additives. use amount generally in 0.5—1份, use amount less function, use amount large and DMF versus solvent property 差, make 贝斯革 surface has 凹陷出现. 　　② leveling agent: leveling agent is types modified has machine silicon additives. main/primary function is improvement surface property, increase resin and 基布间 hydrophilic combined property. use amount generally is resin quality 0.1%. 　　③ water: water can as is types additives used for 含浸贝斯 formulation in, use adjustment structure, add fast solid speed degree. 　　D, solvent agent DMF: in 含浸贝斯 formulation in, DMF use amount can resin quality 1.5倍 to 2倍. 　　E, 起毛布: 含浸贝斯革 use 起毛布 more is di 面起毛布, thick degree from 0.4—1.2MM不 and other, according to product thick degree selection. process requirements 起毛布 脱脂 and hydrophilic water property must good, short 而匀, structure 紧密. 3, production process as key points （1） polyurethane ester material made 备: in 搅拌缸 inner add amount DMF,然 rear add 入木质 powder,并搅拌 make powder dispersion 于DMF in,停止搅拌,依次 add 入C—70, S—80, water, defoamer, leveling agent and other, 继续搅拌5MIN rear, add polyurethane ester resin and color agent, high speed 搅拌约20min left right, meanwhile true 空脱泡, testing combined liquid viscosity, 如不符 combined process requirements, adjustment. （2）含浸凝 solid 工序: good material use gas 泵打入含浸槽 inner, 基布放卷, in 入含浸槽浸渍 front, 经烫平辊 add hot remove in water separation, easy generate 贝斯革 surface 两层皮 phenomenon. 基布入含浸槽 inner, polyurethane ester material 渗入基布 in. due to 基布不断运动, 会 空 gas belt/tape 入含浸槽 inner material in, from generate bubbles, material in gas in surface formed 针孔. is and remove this bubbles remove in material formulation in add defoamer outer, 含浸槽 inner material ring use is very has 效 一 types methods, 即不断 无泡 material 打入含浸槽, meanwhile from 含浸槽 upper 面溢出含 has relatively more bubbles material, 溢出 浆 material specialized inner, let its 静置消泡一段 time rear, heavy new 打入含浸槽 use. from 含浸槽出 rear, use more 余 浆 material 刮掉. 刮刀间隙也 is effect/influence surface quality important factors. 刮刀间隙太 small 时, easy 漏布毛, formed surface 不平整; 间隙太 large 时, also easy surface 两层皮 phenomenon, large small also need according to 起毛布起毛 long short 做适当 adjustment, rear water solid. 贝斯入 water degree 应以垂直凝 solid methods is 宜. water rear, water toward 距离不宜 long, 以6—8M is 宜, 起毛布 quality is quality key/critical factors. 脱脂差, hydrophilic water property 差 起毛布会造 formed surface generate a large amount of 针孔, 甚至会引起 surface 脱层. therefore, wet method use for property, hydrophilic water property has requirements. 检验起毛布 hydrophilic water property simple methods is high experiment/testing, 即 一 wide 约30MM, long 200MM strip/profile, its lower 端浸入 water in, 经 一定 time （例如30min）, amount water 沿布往 upper high high degree. upper 爬 越 high, 说明布 浸 water property good. upper methods upper is 检查布基毛 fine methods. 当基布 inner in quality issues 时, how to positive formulation, is 无济于事. （3） water 洗, dry, 卷取: 含浸贝斯 thick degree generally relatively thick, water 洗, dry time versus need long 一. （三）起毛布含浸 coating polyurethane ester 贝斯1, production process process/workflow 注: 1, 起毛布放卷 2, 含浸槽 3, pressure 辊 4, solid 槽 5, pressure 辊 6, 烫平辊 7, coating material 台8, solid 槽 9, pressure 辊起毛布含浸 coating polyurethane ester is will 起毛布浸渍 polyurethane ester material rear, water solid, pressure, basic drying rear, in positive again coating polyurethane ester combined liquid, rear water solid. coating surface 平整, fine 密, true strong/high. 2, main/primary raw materials 　　含浸 coating 贝斯革 use Raw Materials basic and mono and mono coating 贝斯革 use raw materials basic same, in coating formulation in, coating liquid formulation and mono coating basic same, 而含浸 liquid formulation viscosity need low mono 含浸贝斯 formulation. due to 含浸覆贝斯 in, rear 起毛布持 liquid rate very low, 故不必添 add defoamer and leveling agent, S—80也不必 use, use C—70 increase water and DMF speed degree can. 3, production process as key points and precautions 　　含浸 coating 贝斯含浸 liquid viscosity need amount low 一, 起毛布 持 liquid rate need amount less. solid rear,基布 need separation dry,否则, coating liquid coating material rear, in solid process in easy generate bubbles or 鸡爪纹. coating 贝斯革 for 起毛布 requirements very 严格,背面 毛起 need long, positive 面 毛则 need short,布 组织 structure ratio mono use need 密. 起毛布 need has good hydrophilic water property, 起毛布 quality good 时,同样会 generate bubbles and 鸡爪纹. 　　含浸 coating in production in easy issues and solution methods can mono coating 贝斯革 and 含浸贝斯革 in methods solution.