Antibacterial and antiviral agent, antibacterial, mildew-proof and antiviral leather as well as preparation method and application thereof

An anti-viral agent, anti-bacterial and anti-mildew technology, applied in the field of anti-bacterial, anti-mildew, anti-virus leather and its preparation, antibacterial and anti-viral agent, can solve the problems of single function, poor virus inactivation ability, affecting the elasticity and softness of leather, etc. Achieve good long-term stability, good long-term stability of antibacterial properties, and long-lasting effects

Active Publication Date: 2020-09-25
南京同曦大圣健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mainstream antibacterial technology applied to antibacterial leather in the market is to make antibacterial leather by sterilizing nano-silver and organic antibacterial agents, but the antibacterial leather prepared by these antibacterial agents has poor antibacterial durability and single function, and cannot be effective against a variety of bacteria. Simultaneously with the virus to achieve the same effect
[0003] CN107354251A discloses a preparation method of long-acting antibacterial leather. After tanning and before washing, a nano-silver solution modified by gallic acid is added in an amount of 50-120% of the weight of animal fur. The invention uses nano-silver solution modified by gallic acid. Silver solution is used as an antibacterial agent to treat leather. Although it has excellent antibacterial effect, it has poor virus inactivation ability, and nano silver modified with gallic acid will affect the elasticity and softness of leather to a certain extent.
The invention makes the leather resistant to wet rubbing and antibacterial by immersing the leather in the antibacterial solution after the fatliquoring process and applying a layer of protective film, but the antibacterial leather prepared by this method has poor antibacterial persistence and is resistant to viruses. Poor inactivation ability

Method used

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  • Antibacterial and antiviral agent, antibacterial, mildew-proof and antiviral leather as well as preparation method and application thereof
  • Antibacterial and antiviral agent, antibacterial, mildew-proof and antiviral leather as well as preparation method and application thereof
  • Antibacterial and antiviral agent, antibacterial, mildew-proof and antiviral leather as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1-3 and comparative preparation example 1-5

[0100] Each preparation example provides an antibacterial and antiviral agent, and the formula of each preparation example by weight parts is shown in the following table 1 (as in table 1, "4" represents that the content of the corresponding component is 4 parts by weight):

[0101] Table 1

[0102]

[0103]

[0104] The antibacterial and antiviral agent is prepared by the following preparation method: first mix silver-doped nano-bismuth tungstate, silver-doped nano-titanium dioxide, erbium-doped nano-titanium dioxide, dispersant A and water, heat to 90° C. and ultrasonically for 30 minutes, Add chitosan and plant extract and mix to obtain the antibacterial and antiviral agent.

preparation example 9-14

[0106] Preparation examples 9-14 provide antibacterial and antiviral suspensions, and the formulas of each preparation example in parts by weight are shown in Table 2 below (as in Table 1, "4" represents that the content of the corresponding component is 4 parts by weight):

[0107] Table 2

[0108] Nano silver sol Nano Zirconia Nano bismuth tungstate Dispersant B water Preparation Example 4 4 2 2 0.4 72 Preparation Example 5 2 2 4 0.5 62 Preparation example 6 6 1 1 0.6 78 Preparation Example 7 0 4 4 0.4 72 Preparation example 8 5 0 3 0.4 72 Preparation Example 9 5 3 0 0.4 72

[0109] The antibacterial and antiviral suspension is prepared by the following preparation method: mixing nano-silver sol, nano-zirconia, nano-bismuth tungstate, dispersant B and water, heating to 90°C and ultrasonicating for 30 minutes, to obtain the antibacterial and anti-viral suspension suspension.

Embodiment 1

[0111] This embodiment provides an antibacterial, mildew-proof and anti-virus leather. The raw materials for the preparation of the leather include: 100 parts of cattle leather, 0.5 parts of leather degreasing agent, 5.5 parts of formic acid, 2 parts of vegetable tanning agent, and the antibacterial and disease-resistant leather provided in Preparation Example 1. 5 parts of poison, 1 part of dyestuff, 0.5 part of leveling agent and 20 parts of antibacterial and antiviral suspensions that preparation example 4 provides.

[0112] The preparation method of the antibacterial, mildew-proof and anti-virus leather provided by the present embodiment comprises the following steps:

[0113] (1) Pretreatment: Put 100 parts of yellow cow leather in a drum and mix it with 100 parts of water, heat it in a water bath at 40°C, then add 0.5 parts of leather degreasing agent and 1 part of formic acid, and rotate for 60 minutes. Wash with water to obtain degreased animal skin; put the degreased ...

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Abstract

The invention provides an antibacterial and antiviral agent, an antibacterial, mildew-proof and antiviral leather as well as a preparation method and application thereof. The antibacterial and antiviral agent is prepared from the following raw materials: silver-doped nano bismuth tungstate, silver-doped nano titanium dioxide, erbium-doped nano titanium dioxide, chitosan and a plant extract. The leather is prepared from the following raw materials: animal skin, a leather degreasing agent, acid, a tanning agent and the antibacterial and antiviral agent. Efficient antibacterial and antiviral effects are achieved through synergistic cooperation of metal ions, a photocatalyst and a natural plant extract; the prepared antibacterial, mildew-proof and antiviral leather has a broad-spectrum long-acting antibacterial mildew-proof antiviral performance, microorganisms such as bacteria and mildew attached to the surface of the leather are difficult to reproduce and are killed, and efficient inactivation of viruses is realized.

Description

technical field [0001] The invention belongs to the technical field of leather preparation, and in particular relates to an antibacterial and antiviral agent, antibacterial, mildew-proof and anti-virus leather and a preparation method and application thereof. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. There is a special grain layer on the surface, which has natural grain and luster, and feels comfortable. There are mainly pig leather, cow leather, sheep leather, horse leather, donkey leather and kangaroo leather. The body has good fullness and elasticity, and good physical properties. Therefore, high-quality yellow cow leather and sheep leather are generally used as leather materials for high-end products, and their prices are relatively high among bulk leathers. Aft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/40A01N65/42A01N43/16A01N59/16A01P1/00A01P3/00C14C13/00C14C1/08C14C3/10C14C3/16A63B41/08
CPCA01N43/16A01N59/16A01N65/00A01N65/08A01N65/20A01N65/40A01N65/42A63B41/08C14C1/08C14C3/10C14C3/16C14C13/00
Inventor 陈广川于红光吴新磊
Owner 南京同曦大圣健康科技有限公司
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