Unlock instant, AI-driven research and patent intelligence for your innovation.

Durable flame retardant finishing method of silk based on casein phosphopeptide and flame retardant silk

A casein phosphopeptide, flame retardant finishing technology, used in fiber processing, textiles and papermaking, animal fibers, etc., can solve problems such as the decline of flame retardant performance, harm the environment and human body, and achieve improved flame retardant performance and good washing resistance. Effect

Active Publication Date: 2021-05-18
SUZHOU UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can improve the flame retardant performance of silk, but after a long time of washing, its flame retardant performance drops significantly
It is generally believed that the discharge of phosphorus-containing flame retardants will lead to eutrophication of water bodies, and halogen-containing flame retardants will release a large amount of toxic gases during combustion, which will endanger the environment and human body

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Durable flame retardant finishing method of silk based on casein phosphopeptide and flame retardant silk
  • Durable flame retardant finishing method of silk based on casein phosphopeptide and flame retardant silk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Use sodium carbonate to adjust the pH value of the 2g / L casein phosphopeptide solution to 8.5, stir at room temperature for 10 minutes to fully dissolve, immerse the silk fabric in the above casein phosphopeptide solution, heat up to 70°C, and keep warm After processing for 75 minutes, take out the silk and wash it.

[0024] (2) Immerse the above-mentioned casein phosphopeptide-treated silk into 1 g / L ferrous sulfate solution, treat at 70° C. for 20 minutes, wash and dry to obtain durable flame-retardant silk.

[0025] The limiting oxygen index of silk treated with casein phosphopeptide and ferrous sulfate is 27.2%, and the damage length is only 12.0cm, which meets the requirements of B1 grade flame retardant decorative fabrics in my country's GB / T 17591-2006 "Flame Retardant Fabrics". The requirement that the vertical burning damage length is less than 15cm.

Embodiment 2

[0027] (1) Use sodium carbonate to adjust the pH value of the 10g / L casein phosphopeptide solution to 7.5, stir at room temperature for 10 minutes to fully dissolve it, immerse the silk fabric in the above casein phosphopeptide solution, raise the temperature to 80°C, and heat preservation treatment After 45 minutes, take out the silk and wash it.

[0028] (2) Immerse the above-mentioned casein phosphopeptide-treated silk into 4g / L ferrous sulfate solution, treat at 50°C for 40min, wash and dry to obtain durable flame-retardant silk.

[0029] The limiting oxygen index of silk treated with casein phosphopeptide and ferrous sulfate is 27.4%, and the damaged length is only 11.5cm, which meets the requirements of B1 grade flame retardant decorative fabrics in my country's GB / T 17591-2006 "Flame Retardant Fabrics". The requirement that the vertical burning damage length is less than 15cm.

Embodiment 3

[0031] (1) Use sodium carbonate to adjust the pH value of the 10g / L casein phosphopeptide solution to 8.5, stir at room temperature for 10 minutes to fully dissolve it, immerse the silk fabric in the above casein phosphopeptide solution, raise the temperature to 80°C, and heat-preserve After 60 minutes, take out the silk and wash it.

[0032] (2) Immerse the silk treated with the above-mentioned casein phosphopeptide into 2g / L solution of ferrous sulfate, ferric sulfate, titanium sulfate and calcium sulfate, treat at 60°C for 30min, wash and dry to obtain durability The flame retardant function of silk.

[0033] As a comparative example, use ferrous sulfate, ferric sulfate, titanium sulfate or calcium sulfate alone to treat silk: soak the silk fabric in 2g / L of the above metal salt solution and treat at 70°C for 30min.

[0034] The flame retardant properties of untreated and treated silk fabrics were tested, and the results are shown in figure 1 . figure 1 It shows that the...

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
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
lengthaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a durable flame-retardant finishing method for silk based on casein phosphopeptide, which comprises the following steps: (1) immersing silk in an aqueous solution of casein phosphopeptide with a pH value of 7.5-8.5, and raising the temperature to 70-80°C Carry out heat preservation treatment; (2) immerse the silk treated in step (1) in a metal salt solution with a concentration of 1-4g / L, heat up to 50-70°C for treatment, and obtain flame-retardant silk. The invention also discloses the fire-resistant silk prepared by the finishing method. The durable flame-retardant finishing method for silk based on casein phosphopeptides of the present invention endows silk with durable flame-retardant properties by forming casein phosphopeptides and metal ion chelates in situ on silk.

Description

technical field [0001] The invention relates to the technical field of textile finishing, in particular to a method for durable flame-retardant finishing of silk based on casein phosphopeptide and flame-retardant silk. Background technique [0002] Silk has the advantages of strong moisture absorption and moisture permeability, good biocompatibility, smooth and soft hand feeling, etc., and is known as the "fiber queen". As a high-grade natural protein fiber for clothing and decoration, silk is limited in its application in decorations and some daily clothing due to its poor thermal stability and fire resistance. The silk can be modified through the flame retardant finishing technology, so that the silk can meet the flame retardant requirements. [0003] The initial flame retardant finishing technology of silk is stannic acid or boric acid-borax impregnation treatment. After finishing, the silk fabric has a good hand feeling and excellent flame retardant performance, but its...

Claims

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/15D06M11/56D06M101/10
Inventor 唐人成张文程献伟杨旭红
Owner SUZHOU UNIV