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Antibacterial composite leather material and preparation method thereof

A technology for leather and leather fibers, applied in the field of antibacterial composite leather materials and their preparation, can solve the problems that medical supplies are tasteless, clean, hygienic, antibacterial, have no antibacterial function, residual bacteria in leather, etc., and achieve no allergic side effects, Efficient bactericidal performance, strong antibacterial lasting effect

Pending Publication Date: 2019-07-02
GUANGZHOU FUTIAN INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, genuine leather, synthetic leather and artificial leather have been used for medical wristbands. However, the existing genuine leather, synthetic leather and artificial leather have a single effect and often do not have antibacterial functions. The residue and the growth of bacteria cannot meet people's needs for tasteless, clean, hygienic and antibacterial medical products

Method used

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  • Antibacterial composite leather material and preparation method thereof
  • Antibacterial composite leather material and preparation method thereof
  • Antibacterial composite leather material and preparation method thereof

Examples

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preparation example Construction

[0028] A kind of preparation method of antibacterial composite leather material provided by the invention comprises the following steps:

[0029] In parts by weight, mix 80-130 parts of modified leather fiber, 8-20 parts of resin, 1-5 parts of plasticizer, 2-4 parts of heat stabilizer, and 2-6 parts of polar wax at a temperature of 80-110°C , mixing under the condition of rotating speed 800~1500r / min for 5~10 minutes, then press molding under the pressure of 150~200MPa to obtain the rough leather material, smear 1~5 parts of stearic acid on the surface of the described rough leather material, After standing at room temperature for 1 to 2 hours, put it at a temperature of 90 to 110°C and a roller pressure of 4 to 6Kg / cm 3 rolling into an antibacterial composite leather material under conditions; wherein, the modified leather fiber is compounded by chitosan, titanium dioxide, and leather fiber in the presence of a crosslinking agent, and the chitosan and the leather fiber The w...

Embodiment 1

[0058] The embodiment of the present invention provides a kind of preparation method of antibacterial composite leather material, comprises the following steps:

[0059] (1) Preparation of leather fiber:

[0060] Put the cowhide in a pulverizer and crush it into a particle size of 12mm×12mm, then put it in hydrogen peroxide (its pH value is 6.5), and soak it at 70°C for 3 hours so that the cowhide is fully oxidized and decomposed to obtain the pretreated cowhide. The treated cowhide is crushed and ground to obtain fiber slurry, put the obtained slurry into clear water, statically stratify, filter to remove impurities, and obtain filter residue, put the obtained filter residue in an oven, control the temperature at 70°C, and the time is 40min , to obtain dry leather fibers.

[0061] (2) Modification of leather fiber:

[0062] According to the volume ratio of tetrabutyl titanate, deionized water, absolute ethanol and concentrated hydrochloric acid as 1:250:15:1.5, mix deionize...

Embodiment 2

[0068] The embodiment of the present invention provides a kind of preparation method of antibacterial composite leather material, comprises the following steps:

[0069] (1) Preparation of leather fiber:

[0070] Put the cowhide in a pulverizer to crush it into a particle size of 12mm×12mm, then place it in hydrogen peroxide (its pH value is 6), soak it at 60°C for 4 hours to fully oxidize and decompose the cowhide, and obtain the pretreated cowhide. The pretreated cowhide is crushed and ground to obtain fiber slurry, which is put into clear water, statically layered, filtered to remove impurities, and the filter residue is obtained. The obtained filter residue is placed in an oven, and the temperature is controlled at 60 ° C. The time is 30min to obtain dry leather fibers.

[0071] (2) Modification of leather fiber:

[0072] According to the volume ratio of tetrabutyl titanate, deionized water, absolute ethanol and concentrated hydrochloric acid as 0.5:100:10:0.5, mix deion...

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Abstract

The invention discloses an antibacterial composite leather material and a preparation method thereof. The preparation method of the antibacterial composite leather material comprises the following steps: mixing the following materials, in parts by weight: 80-130 parts of modified leather fibers, 8-20 parts of resin, 1-5 parts of a plasticizer, 2-4 parts of a heat stabilizer, and 2-6 parts of polarwax at a temperature of 80-110 DEG C and a rotation speed of 800-1500 r / min for 5-10 min, performing compression molding under pressure of 150-200 MPa to obtain a crude leather material, coating thesurface of the crude leather material by 1-5 parts of stearic acid, allowing the coated material to stand at a normal temperature for 1-2 h, and performing roll finish to form the antibacterial composite leather material under the conditions of a temperature of 90-110 DEG C and pressure roller pressure of 4-6 kg / cm<3>; and through the above steps, chitosan and titanium dioxide are fixed on the leather fibers through chemical action, and a three-dimensional network structure is formed, so that the titanium dioxide and the chitosan have a synergistic effect, and the leather material has high-efficiency bactericidal performance. The antibacterial composite leather material provided by the invention has a stable structure, softness, no allergic side effects on skin, cheap raw materials and lowpreparation costs.

Description

technical field [0001] The invention relates to leather materials, in particular to an antibacterial composite leather material and a preparation method thereof. Background technique [0002] The medical wristband is a wristband made of special materials, on which the patient's name, number, department, bed number and other basic patient information are printed. The patient wears it with him, which is convenient for identification of the patient in the process of diagnosis, sampling, treatment, etc. and identification. At present, most of the medical wristbands on the market are disposable products. This kind of wristband is cheap, but it is easy to be damaged, and the patient information is easy to be destroyed and lost. The two sides of the wristband are easy to cause scratches and abrasions on the patient's skin. With the development of science and technology and economy, people put forward more demands. As a result, genuine leather, synthetic leather and artificial lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L89/00C08L75/04C08L51/06C08K5/12C08K5/098C08J7/06D06M11/46D06M15/03D06M10/00D06M13/123D06M101/10
CPCC08J7/065D06M10/001D06M11/46D06M15/03D06M13/123C08J2389/00C08J2475/04C08J2451/06C08K5/12C08K5/098D06M2101/10
Inventor 邹木新
Owner GUANGZHOU FUTIAN INFORMATION TECH
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