Reinforcing liquid and reinforcing method for protecting ancient silk fabric cultural relics

A technology for the protection of cultural relics and silk fabrics, which is applied in textiles, papermaking, animal fibers, and fiber processing, etc. It can solve the problems of high toxicity and poor affinity of silk fabrics, and achieve the effect of improving mechanical strength

Inactive Publication Date: 2012-11-28
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the materials used in this method have poor affinity with silk fabrics and are highly toxic.

Method used

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  • Reinforcing liquid and reinforcing method for protecting ancient silk fabric cultural relics
  • Reinforcing liquid and reinforcing method for protecting ancient silk fabric cultural relics
  • Reinforcing liquid and reinforcing method for protecting ancient silk fabric cultural relics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Sodium caseinate (SC) and transglutaminase (MTG, specific activity 200U / g) were dissolved in 0.1M, pH 7.0 Tris-HCl buffer to obtain a reinforcement solution, in which the mass concentration of SC was 3%, MTG enzyme Vitality / SC mass=30U / g; use the brushing method to apply the reinforcement solution evenly on the surface of the simulated ancient silk fabric sample, every 10cm 2 The surface of the textile was coated with 1mL of reinforcement solution, and then the sample was incubated at 25°C for 3 hours and then taken out for analysis. The tensile strength was 1.62N, and the color difference ΔE = 1.22.

[0023]

Embodiment 2

[0025] Dissolve sodium caseinate (SC) and transglutaminase (MTG, specific activity 200U / g) in 0.1M, pH 7.0 Tris-HCl buffer to obtain a reinforcement solution, in which the mass concentration of SC is 0.5%, and MTG enzyme Vitality / SC mass=20U / g; use the brushing method to apply the reinforcement solution evenly on the surface of the simulated ancient silk fabric sample, every 10cm 2 The surface of the textile was coated with 1mL of reinforcement solution, and then the sample was incubated at 37°C for 1 hour and then taken out for analysis. The tensile strength was 1.54N, and the color difference ΔE = 0.60.

[0026]

Embodiment 3

[0028] Sodium caseinate (SC) and transglutaminase (MTG, specific activity 200U / g) were dissolved in 0.1M, pH 7.0 Tris-HCl buffer to obtain a reinforcement solution, in which the mass concentration of SC was 2%, MTG enzyme Vitality / SC mass=30U / g; use the brushing method to apply the reinforcement solution evenly on the surface of the simulated ancient silk fabric sample, every 10cm 2 The surface of the textile was coated with 1mL of reinforcement solution, and then the sample was taken out for analysis after being incubated at 50°C for 3 hours. The tensile strength was 2.62N, and the color difference ΔE = 0.92.

[0029]

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Abstract

The invention discloses a reinforcing liquid for protecting ancient silk fabric cultural relics. The reinforcing liquid is a solution, which is formed by dissolving sodium caseinate and glutamine transaminase in a Tris-HCl buffering liquid, wherein the mass concentration of the sodium caseinate is 0.5-3.0%, the ratio between enzyme activity of the glutamine transaminase and mass of the sodium caseinate is 5-50 U / g; the pH value of the Tris-HCl buffering liquid is 6.0-8.0, and the concentration of the Tris-HCl buffering liquid is 0.05-0.5 M. According to the invention, as the sodium caseinate is catalyzed through the adoption of an MTG (Microbial Transglutaminase) enzyme to be polymerized on a silk fabric cultural relic main body so as to generate proteins with large molecular weights and a net-shaped structure is formed in a silk fiber, the mechanical strength is enhanced; and it is proved by experiments that a good effect of reinforcing silk fabric materials is achieved.

Description

technical field [0001] The present invention relates to the application method of MTG enzymatic polymerization in the protection of ancient silk cultural relics. Specifically, MTG enzyme is used to catalyze the polymerization reaction of sodium caseinate (SC) on the body of ancient silk cultural relics to generate large molecular weight protein, repair The fissures of silk cultural relics are filled and reinforced. Background technique [0002] Silk fabric is one of the important inventions and creations in ancient my country and an important part of my country's cultural heritage. Its quantity is huge and there are many types. The information contained reflects the level of ancient textile technology and social civilization development, and has witnessed the development of Chinese civilization. The value and significance of major academic research. The raw material of ancient silk cultural relics is mainly silk protein, which is easily affected by factors such as light, hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/15D06M101/12
Inventor 龚德才朱展云
Owner UNIV OF SCI & TECH OF CHINA
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