Composite phosphate grease-adding agent for leather and its preparation method

A compound phosphate ester and leather fatliquor technology, applied in leather impregnation, small raw hide/big raw hide/leather/fur treatment, small raw hide/large raw hide/leather skin/fur chemical treatment, etc., can solve long production cycle , high production equipment requirements, single performance and other issues, to achieve good low-temperature storage effect

Active Publication Date: 2006-11-22
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But at present domestic production of this type of fatliquor mainly uses aliphatic hydrocarbons, alicyclic hydrocarbons, fluoroaliphatic hydrocarbons and their derivatives as basic raw materials. Although they all have a certain fatliquoring effect, there are complicated process routes and long production cycles. Synthetic technology is difficult, requires high production equipment, high material prices, poor biodegradability, single performance, and gaps with similar foreign products. The domestic market of such high-end products has long been occupied by foreign companies.

Method used

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  • Composite phosphate grease-adding agent for leather and its preparation method
  • Composite phosphate grease-adding agent for leather and its preparation method
  • Composite phosphate grease-adding agent for leather and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Add 100.0g rapeseed oil and 7.0g monoethanolamine into a dry four-necked glass flask equipped with a stirrer and a condenser, and heat up to 135°C for amidation reaction. After the reaction is carried out for 2.5 hours, a hydroxyl value of 113.94mgKOH / g is obtained. Amidated rapeseed oil. Add 3.21g (3% by weight of the amidated rapeseed oil) Span80 to the amidated rapeseed oil. At this time, the total amount of hydroxyl substances in the system is 0.2292mol, and then slowly add 21.87g composite dispersant (m[containing Chlorinated rape oil fatty acid methyl ester with a chlorine content of 20%]: m[No. 5 white oil] = 2.5:1) 14.58g of P dissolved 2 O 5 (OH:P 2 O 5 [mol]=1:0.45) Phosphorylation, keeping the reaction temperature at 75°C for 2.0 h. Then add 2.78g water (H 2 O: P 2 O 5 [mol]=1.5:1) Hydrolyze to obtain phosphorylated rapeseed oil. Then the system was cooled to 55°C, 59.77g leather-specific alkyl sulfonamide, 59.77g Syn amphoteric synthetic fatliquor material and 2...

Embodiment 2

[0045] Add 100.0g palm oil and 8.0g monoethanolamine into a dry four-necked glass flask equipped with a stirrer and a condenser, and heat to 140°C for amidation reaction. After the reaction is carried out for 2.5 hours, an amide with a hydroxyl value of 129.01mgKOH / g is obtained. Palm oil. Add 4.32g (4% of the weight of amidated palm oil) Span80 to the amidated palm oil. At this time, the total amount of hydroxyl substances in the system is 0.2647mol, and then slowly add 26.94g of composite dispersant (m[chlorine content 20% chlorinated rape oil fatty acid methyl ester]: m[No. 5 white oil] = 2.5:1) 16.84g of P dissolved 2 O 5 (OH:P 2 O 5 [mol]=1:0.45) Phosphorylation, keeping the reaction temperature at 75°C for 2.0 h. Then add 3.43g water (H 2 O: P 2 O 5 [mol]=1.5:1) Hydrolyze to obtain phosphorylated palm oil. Then the system was cooled to 60°C, 63.81g leather-specific alkyl sulfonamide, 63.81g Syn amphoteric synthetic fatliquor material and 31.90g soybean lecithin were added to...

Embodiment 3

[0047] Add 100.0g rapeseed oil and 9.0g monoethanolamine into a dry four-necked glass flask equipped with a stirrer and a condenser, and heat to 140°C for amidation reaction. After the reaction is carried out for 2.5 hours, a hydroxyl value of 143.81mgKOH / g is obtained. Amidated rapeseed oil. Add 4.36g (4% of the weight of the amidated rapeseed oil) Span80 to the amidated rapeseed oil, at this time the total amount of hydroxyl substances in the system is 0.2964mol, and then slowly add 31.52g composite dispersant (m[containing Chlorinated rape oil fatty acid methyl ester with a chlorine content of 20%]: m[No. 10 white oil]=2.5:1) dissolved 19.70g of P 2 O 5 (OH:P 2 O 5 [mol]=1:0.47) Phosphorylation, keeping the reaction temperature at 80°C for 2.0 h. Then add 4.51g water (H 2 O: P 2 O 5 [mol]=1.8:1) Hydrolyze to obtain phosphorylated rapeseed oil. Then the system was cooled to 55°C, 93.93g leather-specific alkyl sulfonamide, 93.93g Syn amphoteric synthetic fatliquor material and 19...

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Abstract

The invention discloses a composite phosphate leather fatting agent and preparing method, which comprises the following parts: phosphorylation vegetable oil, soy bean lecithin, and leather specific alkylamide and Syn amphiprotic synthetic fatty material. The making method comprises the following steps: reacting vegetable oil with aminoethyl alcohol to produce amidation vegetable oil; phosphorylating dispersed P2O5 with certain quantity oil solubility emulsifier; dewatering after phosphorylation to produce phosphate vegetable oil; introducing soy bean lecithin, leather specific alkylamide and Syn amphiprotic synthetic fatty material in the phosphorylation vegetable oil; neutralizing; adjusting the effective material content to produce the product.

Description

Technical field [0001] The invention belongs to the technical field of leather chemical industry, and particularly relates to a compound type leather fatliquor containing phosphorylated vegetable oil and a preparation method thereof. Background technique [0002] Fatliquor is the most used leather chemical material in leather production, and it is also one of the important chemical materials in leather processing. It can not only lubricate the leather fiber, prevent the leather from stiffness and cracking, but also make the leather have corresponding toughness and softness, and maintain its strength. It is an important factor affecting the quality and performance of the leather. In recent years, phosphate fatliquors have become a hot spot in the development of new fatliquors due to their excellent performance. The phosphate active group contained in the molecular structure of this type of fatliquor can enter the leather to interact with the amino group on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C9/02
Inventor 兰云军鲍利红罗卫平董贵平
Owner WENZHOU UNIVERSITY
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