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1. 发明授权

US4614520A Leather processing 失效
标题翻译：皮革加工
公开(公告)号：US4614520A
公开(公告)日：1986-09-30
申请号：US716572
申请日：1985-03-27
申请人： Alfredo Ibello, deceased , by Silvio Ibello, heir , by Emma Ibello, heir , by Clelia Ibello, heir
发明人： Alfredo Ibello, deceased , by Silvio Ibello, heir , by Emma Ibello, heir , by Clelia Ibello, heir
IPC分类号： C14C1/00 , C14C13/00 , D06P3/32
CPC分类号： C14C13/00 , C14C1/00 , D06P3/3206
摘要： A process is disclosed for preparing a suede leather product from animal hides. The hide is scalded before tanning and the finished product can be washed and ironed in a manner similar to a woolen garment. The hide is pretanned in formaldehyde, neutralized in sodium bicarbonate, tanned with a basic chrome solution, neutralized with sodium sulfate, and dyed with a direct color dye. More specifically, an outer suede product is obtained from the external corium of the skin, instead of the flesh side, with the result that less expensive sheepskin acceptable to the trade can be used in place of top grade kidskin and goatskin suedes. In a preferred practice of the method, the hide is burnt twice in scalding steps carried out in a swelling state, soon after first and second fleshing steps and, prior to a bating step. The burning affects the entire thickness of the fibrous grain layer by exposing the upper layer of the corium by soaking the hide in the third solution of sodium sulfide after a third fleshing step. The process obtains a soaped-water washable skin capable of maintaining a soft condition and avoiding fading of the dye. The washable condition is obtained by soaking the dyes, greased with egg yolk, in hot water.
摘要翻译：公开了一种从动物皮制备麂皮革产品的方法。皮革在鞣制前被烫伤，成品可以以类似于羊毛服装的方式进行洗涤和熨烫。将皮革预先装入甲醛中，用碳酸氢钠中和，用碱性铬溶液鞣制，用硫酸钠中和，并用直接染色染色。更具体地说，外皮麂皮产品是从皮肤的外部的皮肤而不是肉的侧面获得的，结果是可以使用可以接受的较便宜的羊皮代替顶级的小孩和山羊皮麂皮。在该方法的优选实践中，在第一和第二肉肉步骤之后以及在咬合步骤之前不久，在膨胀状态下进行的烫伤步骤中，皮革被烧焦两次。燃烧影响纤维颗粒层的整个厚度，通过在第三次肉肉化步骤之后，通过将皮肤浸泡在硫化钠的第三溶液中来暴露上层的腐蚀。该方法获得能够保持柔软状态并避免染料褪色的皂洗水皮肤。可洗涤条件是通过将染色剂用蛋黄油脂浸泡在热水中而获得的。

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