Durable antibacterial soft leather for leather bag and preparation method thereof

A soft and durable technology, applied in the field of natural leather, can solve the problems of unfriendly production of high-grade leather, sticky hand feeling after soft finishing, difficult hand feeling and durability, and achieve excellent antibacterial effect, good soft effect and excellent antibacterial performance.

Active Publication Date: 2020-08-14
杭州天龙手袋股份有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the above treatments are difficult to achieve excellent hand feel and durability at the same time, and the hand feel of soft finishing will be sticky. In addition, the cost of silver antibacterial is relatively high, and additional antibacterial treatment of leather is required, and the process is cumbersome. For high-grade leather production is not friendly

Method used

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  • Durable antibacterial soft leather for leather bag and preparation method thereof

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specific Embodiment 1-3

[0038] Specific embodiment 1-3: a kind of finishing method of durable type antibacterial soft leather for leather bag, soft, antibacterial finishing is carried out to the cowhide after chrome tanning finishing. The finishing method includes the following steps:

[0039] (1) Configuration of functional finishing agent:

[0040] Add a certain amount of non-reactive hydrophilic silicone DP9993, low molecular polyethylene emulsion, hydrophobic softener polydimethylsiloxane PDMS, dodecyl dimethyl betaine, nano zinc oxide, poly Vinylpyrrolidone, sodium carboxymethyl cellulose, corium powder, glycerol, rose essential oil, stir evenly at a stirring rate of 250rpm, and obtain the described functional finishing agent; the molecular weight of polyethylene in the low molecular polyethylene emulsion 1500; the size of nano-zinc oxide is 50nm; the size of dermal powder is 200nm;

[0041] (2) Finishing of functional finishing agents:

[0042] Immerse the chrome-tanned cowhide into the func...

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Abstract

The invention relates to the field of natural leather. The invention provides durable antibacterial soft leather for a leather bag and a preparation method of the durable antibacterial soft leather. The method comprises the following steps: carrying out softening and antibacterial finishing on chrome tanned leather, dipping the leather in an aqueous solution containing non-reactive hydrophilic organosilicon, a low-molecular-weight polyethylene emulsion, a hydrophobic softener, dodecyl dimethyl betaine, nano zinc oxide, polyvinylpyrrolidone and the like, and carrying out low-temperature dryingto obtain the durable antibacterial soft leather. The durable antibacterial soft leather obtained by the method has durable, soft and antibacterial effects.

Description

technical field [0001] The application relates to the field of natural leather, in particular to a method for antibacterial and soft surface finishing of tanned leather and the prepared leather. Background technique [0002] For high-end leather products, softening is one of the ways to increase the added value of leather. The commonly used method is to soften the leather, and the softeners used are mostly silanes. And because leather is rich in nutrients such as protein and fat, it is easy to be polluted by microorganisms during storage and use. Generally, salting treatment is adopted in the prior art, which will cause a lot of pollution, and the obtained leather feels deteriorated, and the leather surface is loose. It loses the luster of leather, so it cannot be used for high-grade leather processing. Although tannin can bring some antimicrobial properties to leather, due to the porous structure of fibers and the moisture absorption of leather during storage and use, It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C11/00
CPCC14C11/00
Inventor 方华锋孙军英汪金国汪俊凯徐素珍
Owner 杭州天龙手袋股份有限公司
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