Accessory ingredient capable of removing and avoiding generating hexavalent chromium in leather and preparation method of accessory ingredient

A technology of hexavalent chromium and additives, applied in small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather hide/fur chemical treatment, tanning treatment, etc. Hexavalent chromium and other problems, to achieve the effect of less raw material components and simple preparation method

Inactive Publication Date: 2013-10-30
咸阳银河无机材料有限公司
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  • Application Information

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Problems solved by technology

[0016] The purpose of the present invention is to solve the problem that the auxiliary agent used in the processing of existing leather is easy to produce hexavalent chromium or there is

Method used

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  • Accessory ingredient capable of removing and avoiding generating hexavalent chromium in leather and preparation method of accessory ingredient

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Embodiment Construction

[0036] The present invention will be further described in detail through specific embodiments below, but the present invention is not limited to these examples.

[0037] An auxiliary agent capable of removing and preventing the formation of hexavalent chromium in leather, the raw material composition and the proportion of parts by mass are:

[0038] 4 parts of reducing agent, 3 parts of antioxidant, 3 parts of dispersant, 2 parts of masking agent, 3 parts of pH regulator:

[0039] The raw material components of the reducing agent are as follows in parts by mass: 3 parts of sodium sulfite, 3 parts of sodium bisulfite, 4 parts of sodium dithionite, 3 parts of sodium metabisulfite, and 3 parts of glucose.

[0040] The antioxidant raw material components are as follows in parts by mass: 3 parts of sulfonated tannin extract, 2 parts of sulfited tannin extract, 3 parts of tea polyphenols, 4 parts of gallic acid, 3 parts of ellagic acid, 3 parts of vitamin C, 3 parts of vitamin C E3...

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Abstract

The invention relates to an accessory ingredient capable of removing and avoiding generating hexavalent chromium in leather and a preparation method of the accessory ingredient, belonging to the technical field of chemical product manufacture. The accessory ingredient is mainly and technologically characterized by being prepared from raw materials including a reducing agent, an antioxidant, a dispersing agent, a masking agent and a pH value regulator. The reducing agent mainly comprises the following components: sodium sulfite, sodium hydrogen sulfite, sodium hyposulfate, sodium pyrosulfite and glucose; the antioxidant comprises the following components: sulfonated tannin extract, sulfited tannin extract, tea polyphenol, gallic acid, ellagic acid, vitamin C and vitamin E; the dispersing agent comprises the following components: an auxiliary naphthalene sulfonic acid synthetic tanning agent and an auxiliary phenolsulfonic acid synthetic tanning agent; the masking agent mainly comprises the following components: sodium formate, sodium acetate and sodium citrate; and the pH value regulator comprises the following components: citric acid and oxalic acid. The accessory ingredient is prepared through grinding, crushing and uniformly mixing. The accessory ingredient is few in raw material component, simpler in preparation method, free of pollution and capable of thoroughly removing and avoiding generating hexavalent chromium in leather.

Description

1. Technical field [0001] The invention relates to the preparation of fine chemical products and the production of ecological leather, an auxiliary agent for removing hexavalent chromium in leather, in particular to an auxiliary agent capable of removing and preventing the formation of hexavalent chromium in leather and a preparation method, which belongs to chemical products field of manufacturing technology. 2. Background technology [0002] Chromium usually exists in two forms of positive trivalent and positive hexavalent, and its valence state is different, and its impact on the environment and biological effects are also different. It is believed that trivalent chromium is a trace metal element necessary for the human body and organisms, while hexavalent chromium, which is more easily absorbed by the human body than trivalent chromium, is a carcinogen, and the toxicity of hexavalent chromium is more than 100 times greater than that of trivalent chromium. [0003] In th...

Claims

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Application Information

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IPC IPC(8): C14C3/00
Inventor 马小鹏马兴元
Owner 咸阳银河无机材料有限公司
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