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Method for identifying silk types of antique silk fabrics

A technology for silk fabrics and silk is applied in the field of identifying silk species, which can solve the problems of inconvenient scientific research, blurred labels, and difficult identification, and achieves the effects of high accuracy, less sample usage, and simple and convenient experimental operation.

Inactive Publication Date: 2017-05-31
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silk is one of the products of ancient Han civilization. It is a continuous long fiber that is solidified by secreting silk liquid when cooked silkworms make cocoons. It is also called "natural silk". , willow silkworm and celestial silkworm, etc. All kinds of silk are widely used in the field of life and have attracted much attention in the academic field. However, various silk fabrics made of different silks often have blurred labels due to careless work or prolonged time. Confusing all kinds of silk fabrics will bring great inconvenience to the subsequent scientific research work. If the silk fabrics are well preserved, the silk types can be distinguished by infrared, XRD and other methods. For ancient silk fabrics that are not well preserved, use ordinary Analytical testing techniques are difficult to identify

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: a kind of method for discriminating the silk kind of ancient silk fabrics, the method adopts the following steps:

[0034] a) Take 2g each of the mixed ancient silk fabrics made of mulberry silk, tussah silk and chestnut silk, and divide them into three groups: A, B and C;

[0035] b) The three groups of samples are all mixed with 0.4% Na in a bath ratio of 1:100. 2 CO 3 Boil in aqueous solution for 20min to degumming, repeat 4 times, then separate the three groups of sample solutions from silk fibroin respectively, after the silk fibroin is rinsed with deionized water and wrung dry, then take 50ml of hydrochloric acid solution with a mass fraction of 1%, at room temperature Soak for 50 minutes, wash with warm water until the solution is neutral, and dry in an oven at 60°C;

[0036] c) The silk fibroin desalinated and dried by step b) will continue to be decolorized and deoiled and waxy. First, at a temperature of 50°C, put 90ml of a mass fraction of 60%...

Embodiment 2

[0042] Embodiment 2: a kind of method of discriminating ancient silk fabrics silk kind, the method adopts the following steps:

[0043] a) Take 5g each of the mixed ancient silk fabrics made of mulberry silk, tussah silk and chestnut silk, and divide them into three groups: A, B and C;

[0044] b) The three groups of samples are all in 0.5% Na with a bath ratio of 1:100 2 CO 3 Boil in aqueous solution for 30min to degumming, repeat 5 times, then separate the three groups of sample solutions from silk fibroin respectively, after the silk fibroin is rinsed with deionized water and wrung dry, then take 65ml of hydrochloric acid solution with a mass fraction of 1%, at room temperature Soak for 55 minutes, wash with warm water until the solution is neutral, and dry in an oven at 70°C;

[0045] c) The silk fibroin desalinated and dried by step b) will continue to be decolorized and deoiled and waxy. First, at a temperature of 60°C, put 100ml of a mass fraction of 70% methanol solu...

Embodiment 3

[0051] Embodiment 3: a kind of method of discriminating ancient silk fabrics silk kind, the method adopts the following steps:

[0052] a) Take 8g each of the mixed ancient silk fabrics made of mulberry silk, tussah silk and chestnut silk, and divide them into three groups: A, B and C;

[0053] b) The three groups of samples are all in 0.6% Na with a bath ratio of 1:100 2 CO 3 Boil in aqueous solution for 40min to degumming, repeat 6 times, then separate the three groups of sample solutions from silk fibroin respectively, after the silk fibroin is rinsed with deionized water and wrung dry, then take 80ml of hydrochloric acid solution with a mass fraction of 1%, at room temperature Soak for 60 minutes, wash with warm water until the solution is neutral, and dry in an oven at 80°C;

[0054] c) Continue to decolorize and deoil waxy silk fibroin desalinated and dried in step b), first put 110ml of 80% methanol solution at a temperature of 70°C and soak for 120min, and then put i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a method for identifying silk types of antique silk fabrics. Three confused antique silk fabrics are grouped; a Na2CO3 solution with a mass fraction of 0.5% is adopted to carry out degumming; after steps of decolorization and waxy oil removal, silk fibroin is dissolved by using a cupriethy lenediamine solution, and purification is carried out by using a dialysis method and an ultrafiltration method together so as to complete extraction of the silk fibroin; enzymolysis is carried out by using an in-solution digestion method; then obtained products are subjected to mass spectrometry by HPLC-MS / MS; results are compared with a database to identify the silk types of the three antique silk fabrics. According to the method disclosed by the invention, detection limitation of a general detection analysis method is overcome, so that even antique silk fabrics in a poor storage state can also be distinguished and identified; the silk types of the antique silk fabrics are identified by adopting a proteomics method, and in the detecting process, an in-solution digestion technology is used, so that the experiment operation is simple and convenient; due to adoption of the proteomics method for identifying the silk types of the antique silk fabrics, the method is high in sensitivity, high in accuracy and small in use quantity of samples.

Description

technical field [0001] The invention relates to a method for identifying silk types, and more specifically relates to a method for identifying silk types of ancient silk fabrics. Background technique [0002] Silk is one of the products of ancient Han civilization. It is a continuous long fiber that is solidified by secreting silk liquid when cooked silkworms make cocoons. It is also called "natural silk". , willow silkworm and celestial silkworm, etc. All kinds of silk are widely used in the field of life and have attracted much attention in the academic field. However, various silk fabrics made of different silks often have blurred labels due to careless work or prolonged time. Confusing all kinds of silk fabrics will bring great inconvenience to the subsequent scientific research work. If the silk fabrics are well preserved, the silk types can be distinguished by infrared, XRD and other methods. For ancient silk fabrics that are not well preserved, use ordinary Analytica...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 彭志勤古锦翠王秉万军民胡智文
Owner ZHEJIANG SCI-TECH UNIV
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