沙发皮工艺流程介绍

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1、关于黄牛沙发皮的技术讨论 Furniture leather Alex Zhao 2010-06-30 皮胚的整理Crusts preparel复鞣染色后的皮胚湿绷板 Wet toggle after retanning and dying.l修边Cut the edges.l中厚皮或者自然摔沙发皮按工艺需要进行回潮静置过夜，振荡拉软Some thick crusts need spray oil or water, rest O/N and stake.l一些品种需要摔软绷板，例如很软的那帕皮或者全粒面苯胺皮Some products need mill and toggle, for ex

2、ample very soft nappa, full grain aniline. 补伤Stucco l大多数皮胚需要局部点补或刮补 Most of crust need apply stucco.l一些低等级的皮胚必须要进行全身刮补，而且要刮补和点补相结合两到三次 Some low grade crusts need total stucco for two or three times.l针对不同的伤残采取不同的办法和工具 Different defects different stucco methods. l过夜干燥 Leave over night. 磨革Buffing l磨两次

3、Buff two timesl不同的产品采用不同的磨革方法 Different products different crusts different buffing methods. 封底Sealing coatl自然摔沙发皮: 喷 1-2遍 Natural milling leather:spray1x-2x,l压花皮封底：喷1遍 Embossed leather:spray1x,l放置四小时以上或者过夜 Leave more than 4hours or over nightl熨平Iron:温度temperature about 90-120 .压力pressure 50-100bar.

4、 封底参考配方Sealer formulationsl阳离子封底Cationic sealer:l水Water 200-300l AK4689 120(AK4685 100)l UK1446(RK2406) 100l AK0386 0-30 l阴离子封底Anionic sealer:l Water 250-300l UR1707 40l AA4750 30l AK0386 20 底涂Base coat 1l自然摔沙发皮底涂Natural milling base coat:l膜足够软Film soft enoughl很好的遮盖性Good cover abilityl很好的鼓软性Good mil

5、l abilityl很好的再涂性Good refinish abilityl好的可堆置性Good pile abilityl轻粒面负载Light burden grain l好的耐光耐紫外线性能Good light fasten and uv proof l压花皮底涂Embossed base coat:l膜要足够软Film soft enoughl很好的遮盖性Good cover abilityl很好的压花定型性Good emboss and print abilityl好的离板和堆置性Good released-plate and pile abilityl压花抗切穿Good cut-ag

6、ainst l好的鼓软性和鼓软后表面舒展Good milling and natural surface after millingl耐光耐紫外线不黄变Good light fasten and UV proof 底涂Base coat 2l自然摔沙发皮Natural millingl刷Pad1x or spray2-3x, l喷浆Spray 硝化棉NC1x,l摔软Milling l绷板Toggle l喷底浆Spray base coat 3-6x 然后做效应层，例如双色，水洗擦色，擦顶等效果Do some effect on it, for example two-tone, wash of

7、f coat, tipping effect and so on. l压花皮Embossedl刷一次Pad1x or 或者辊涂RC1X, l喷Spray 硝化棉NC1x,l压花Emboss 90degrees/120-200kg/2-5sl摔软Mill 6-12hours to effectl绷板Togglel喷Spray3-6x,第一次加入少量UR1020 first time add some UR1020 inside l然后做效应层Do some effect on it, for example two-tone, wash off coat, tipping effect and

8、so on. 底涂Base coat3l自然摔沙发皮Natural millingl适合的化工材料 Suitable chemicalsl AM7335, AA4570, AA4750, AA4566, AA4365l CP2838,CP2841l RE2008, RE2327, RE2350,l EE8060 l UR1441, UR1417,UR1020l LA6190, LA6113 l压花皮Embossed l化工材料Chemicalsl AM7335, AA4570, AA4365l CP2838, CP2863l RE2327, RE2350, RE2912,l UR1441l E

9、E8060l LA6190, LA6113 顶涂Top coat1l手感Good touch:自然natural,绵蜡waxy,丝绸silky,平滑smooth,温暖warmlyl不同的产品需要不同的手感，要看客户的要求Different products different touch, only for customer requiredl很好的物理性能Good performancel很好的耐光耐热黄变Good light fasten and UV fastness.l柔软Soft enough l喷Spray1-2x,l充分干燥 Dry enoughl适合的聚氨酯顶涂材料 Chemicals:UR1786, UR1691, UR1695l交联剂 FX0570l手感剂 Touch Agent: AT7610, AT7612,AT7631, AT7661, AT7630 etc. 顶涂Top coat 2l参考工艺Formulationl水Water 100l UR1786 20-80l UR1691/UR1695 80-20l AT7610 2-4l FX0570 2 l喷Spray1-2x,充分干燥 dry enoughl如果需要If need,摔软mill 20-30minutesl轻喷Spray1x light, 手感层 feeling coatl Finish