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Stain-resistant leather treatment agent and preparation method

A technology of leather treatment agent and auxiliaries, applied in fiber treatment, textiles and papermaking, etc., can solve the problem that there is no synthetic leather antifouling treatment agent, and achieve increased hydrophobicity and decontamination ability, easy removal, excellent anti-graffiti performance effect

Inactive Publication Date: 2012-02-15
上海荟元生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, as far as the technology reported so far is concerned, there is no antifouling treatment agent specially used for synthetic leather

Method used

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  • Stain-resistant leather treatment agent and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Example 1: Component A: First put in 400g of elastic acrylic resin, 100g of castor oil modified resin, 20g of linseed oil, 5g of drier, 10g of waxy additive, 4g of defoamer, and then add 40g of hydrophobic Fumed silica, disperse in a high-speed disperser for 20 minutes, add 100g ethyl acetate EAC, 100g butyl acetate BAC, 200g toluene TO in three batches, disperse evenly, filter and discharge to obtain the required component A.

[0091] Component B: Dissolve 70g of perfluoroalkyl alcohol in 80g of organic solvent MEK to prepare a perfluoroalkyl alcohol organic solution for use; put 75g of IPDI, 300g of N-3300, 100g of palm oil modified polyether, and 5g of catalyst into the reaction kettle , 120g butyl acetate and 200g toluene TO, stir while feeding, heat to keep the temperature at 60°C-80°C, after 3 hours of reaction, add perfluoroalkyl alcohol organic solution dropwise, and add dropwise in three times, every 30 minutes Add dropwise once, the reaction temperature is bet...

Embodiment 2

[0093] Example 2: Component A: First put in 380g of elastic acrylic resin, 100g of castor oil modified resin, 30g of linseed oil, 5g of drier, 12g of waxy additive, 3g of defoamer, and 6g of dispersant after stirring evenly. After dispersing 50g of hydrophobic fumed silica in a high-speed disperser for 25 minutes, add 80g of ethyl acetate EAC, 120g of butyl acetate BAC, and 200g of toluene TO in three batches.

[0094] Component B: Dissolve 60g of perfluoroalkyl alcohol in 80g of organic solvent MEK to prepare a perfluoroalkyl alcohol organic solution for later use; put 75g of IPDI, 300g of N-3300, 160g of palm oil modified polyether, and 4g of catalyst into the reaction kettle , 140g butyl acetate and 180g toluene TO, stir while feeding, heat to keep the temperature at 60°C-80°C, after 3.5 hours of reaction, add the perfluoroalkyl alcohol organic solution dropwise, and add dropwise in three times, every 30 minutes Add dropwise once, the reaction temperature is between 60°C an...

Embodiment 3

[0096] Example 3: Component A: first put in 420g elastic acrylic resin, 80g castor oil modified resin, 25g linseed oil, 5g drier, 16g wax feeling additive, 5g defoamer, 4g polydimethylsiloxane After stirring evenly, add 40g of hydrophobic fumed silica, disperse in a high-speed disperser for 30 minutes, add 100g of ethyl acetate EAC, 100g of butyl acetate BAC, and 200g of toluene TO in three batches, disperse evenly, and then filter and discharge the obtained product. The required A component.

[0097] Component B: Dissolve 65g of perfluoroalkyl alcohol in 80g of organic solvent MEK to prepare a perfluoroalkyl alcohol organic solution for later use; put 70g of IPDI, 300g of N-3300, 120g of palm oil modified polyether, and 5g of catalyst into the reactor , 120g butyl acetate and 200g toluene TO, stir while feeding, heat to keep the temperature at 60°C-80°C, after 3 hours of reaction, add perfluoroalkyl alcohol organic solution dropwise, and add dropwise in three times, every 30 ...

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Abstract

The invention discloses a stain-resistant leather treatment agent, which is obtained through mixing a first ingredient and a second ingredient according to a mass ratio of (3 to 1) / 1, wherein the first ingredient is prepared from elastic acrylic acid resin, castor oil modified resin, linseed oil, hydrophobic silica, auxiliary agents and organic solvents, and the second ingredient is prepared from perfluoroalkyl alcohol, 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate; 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane (IPDI), palm oil polyether, N-330, organic solvents and catalysts. The invention also discloses a preparation method of the stain-resistant leather treatment agent. Through the polymerization reaction, fluorine elements and special palm oil polyether are grafted to the second ingredient of the solidifying agent, and simultaneously, gas-phase silica with hydrophobicity, polydimethylsiloxane and polyethylene wax are added into the first ingredient for enhancing the hydrophobicity and the stain removing capability of the leather treatment agent so that the leather treatment agent has the excellent scrawl resistant performance. The hydroxyl ingredientsof acrylic resin and castor oil modified resin are crosslinked and solidified with the fluorine modified isocyanate prepolymers at a high temperature under the existence of catalysts to form a reticular structure, the paint film has the wear resistance and fold resistance performance, and stain can be easily removed.

Description

technical field [0001] The invention relates to a leather treatment agent and a preparation method thereof, in particular to an anti-fouling leather treatment agent suitable for PU and PVC synthetic leather and a preparation method thereof. Background technique [0002] Artificial leather such as PU and PVC can be widely used in the production of bags, sofas and other leather goods. It is difficult to avoid contamination of leather goods during use, which affects the appearance. In addition, cleaning agents or mechanical erasure must be used to remove dirt, which will cause damage to the paint film. Damage, especially for high-grade leather goods, it is more necessary to invent a leather treatment agent with excellent stain resistance. In order to meet this requirement, the surface of the paint film should have extremely low surface tension, super hydrophobicity, and at the same time, the surface must have an oily feel. At present, the treatment agents that can meet this re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/263D06M11/79D06M15/576D06M15/643D06M15/227C08G18/67C08G18/38
Inventor 江英泉沈美云赵惠芳王卫琴
Owner 上海荟元生物科技有限公司