CN101130898A

CN101130898A - Cocoon glue producing method

Info

Publication number: CN101130898A
Application number: CNA2007100924813A
Authority: CN
Inventors: 席星航; 席兰; 陈涛
Original assignee: 席星航
Current assignee: Hubei four new silk Medical Technology Co Ltd
Priority date: 2007-07-25
Filing date: 2007-07-25
Publication date: 2008-02-27
Anticipated expiration: 2027-07-25
Also published as: CN100540759C

Abstract

The present invention discloses a production method for cocoon sericin fixation. It is characterized by that said method includes the following steps: vacuum impregnating coccon, sericin fixing and softening, stabilizing, bleaching, washing and drying so as to make coccon retain most of sericin, and make the sericin can not be easily dissolved and lost in the reeling process, spinning and weaving process and dyeing process.

Description

The production method of cocoon glue

Technical field

The invention belongs to the silk spinning technical field, relating in particular to a kind of is raw material with bright cocoon or dried cocoon or damaged cocoon, makes it can put down the production method that throwing glue is difficult for the raw silk of molten mistake or makes the silk spinning refined silk through fixed gum softening.

Background technology

Silk cocoon is divided into bright cocoon and dried cocoon, avoids out moth for ease of storage, all adopts drying mode that bright cocoon is processed into dried cocoon at present, and the silk gum that makes silk dries out and simple sex change is hardened, and purpose is convenient transportation, and the easy renaturation of silk gum is beating during filature.The raw silk of the cocoon reel silk from cocoons system of this drying mode generally contains nearly silk gum of about 30%, but its silk gum is soluble in hot water, and more not anti-weak base is met water-soluble expanding and hardened, hardens after the drying again, must take off silk gum in traditional silk weaving dyeing and finishing technology.Yet silk gum has good hygroscopicity and skin-friendly, if can overcome its shortcoming, its value is low unlike fibroin, can improve the utilization rate of raw silk again, and the silk gum of taking off can cause huge pollution to environment, and silk weaving industry is for a long time all being sought the way that keeps silk gum.Someone utilizes formaldehydes to fix with reel silk from cocoons and makes next filature silk silk gum, and is few but its alkali resistance improves, and does not meet the standard-required of national PARA FORMALDEHYDE PRILLS(91,95) content; Someone adopts low temperature filature and low-temperature dyeing and finishing technology to keep silk gum, its silk gum character does not change in fact, silk gum can reflect that still silk gum is soluble in hot water, more not anti-weak base, meet water-soluble expanding and harden, harden after the drying again,, in traditional silk weaving dyeing and finishing technology, must take off silk gum come etc. shortcoming, therefore its product bothers on use and maintenance very much, and range of application is wideless.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of production method to cocoon glue, after adopting this method that silk cocoon is handled, can prolong the holding time of silk cocoon, the raw silk softness of the system of putting down, its silk gum is difficult for molten mistake in boiling water and weak acid and weak base, adapt to the postorder finishing technique of conventional silk goods.

The production method of cocoon glue of the present invention is as follows:

A, vacuum impregnation process: in silk cocoon: solution is put in the tetra methylol phosphonium salt solution dipping more than or equal to 1: 10 ratio with bright cocoon or dried cocoon or damaged cocoon and was vacuumized 10～30 minutes, the PH=2 of this solution～8, tetra methylol phosphonium salt concentration is 0.1%～10%, tetra methylol phosphonium salt is tetra methylol sulfuric acid phosphorus or Tetrakis hydroxymethyl phosphonium chloride, and vacuum is 0.1～0.5 standard atmospheric pressure;

B, solid glue process: will leave standstill 0.5～24 hour through vacuum-impregnated silk cocoon, and make the abundant set of silk gum;

C, stabilization process: will put into alkaline solution through the silk cocoon of solid glue and soak 0.5～10 hour, dewater after the immersion in the PH=8 of this alkaline solution～11;

D, bleaching: it is 8～11 0.1% hydrogen peroxide solution that silk cocoon is put into pH value, soaks after 2～20 hours and takes out;

E, cleaning, drying process: silk cocoon is cleaned up, dry under 100 ℃ the temperature or airing makes the silk cocoon of solid glue being lower than.

In above-mentioned steps, the purpose of vacuum impregnation process is to make soup penetrate sufficiently into silk cocoon inside; The purpose of fixed gum softening process is to allow soup and silk gum fully react, and changes the easily molten and character of anti-weak base not of silk gum; The purpose of stabilization process is to allow the abundant set of the inadequate silk gum of a small amount of set or come off, and bleaching makes the whole set quality of silk gum uniform and stable, and color and luster is pure white.

The solid glue silk cocoon that the present invention produces is compared as follows in the performance of common dried cocoon:

The solid common cocoon of glue cocoon of performance indications

Condition of storage is general

Storage time is long

Easily do not go mouldy not

The filature performance is generally good

Shaking condition alkalescence is neutral

The raw silk softness that reel silk from cocoons is made, it is harder that silk gum is insoluble to the boiling water alkali resistance, and silk gum is dissolved in the boiling water nonreactive

Strong basicity

The raw silk degumming loss that reel silk from cocoons is made

10% with interior more than 20%

Rate

Beneficial effect: it is longer that the silk cocoon that the present invention makes has the holding time, and institute puts down system raw silk gel content height and softness.Its silk of weaving still can keep a large amount of silk gum in weak acid, weak caustic solution, substantially do not change former characteristics of weaving style, improved the utilization rate of fibroin, its output is higher than boiled-off silk and cost is lower than boiled-off silk, reduced in filature and the refining process sericin again to the pollution of environment, simultaneously make silk have better dyeability again, can on the basis of traditional weaving, weave the silk goods of multiple style, be with a wide range of applications.And feel is soft, and good performance and different-style are arranged.

The specific embodiment

Below in conjunction with embodiment the present invention is further specified:

Embodiment one:.

A, take by weighing the bright cocoon of 500g, drop in the vacuum tank of the tetra methylol sulfuric acid phosphorus solution that is equipped with 10 kilogram 0.1%, keep carrying out in 10 minutes vacuum impregnation when suction reaches 0.5 standard atmospheric pressure and handle; B, take out and to be placed on shady and cool place and to leave standstill 1 hour then; C, silk cocoon to be put into 10 kilograms of pH values again be 8.5 hydrosulfurous acid sodium solution, soaks and dewater after 1 hour; It is 8 0.1% hydrogen peroxide solution that D, the silk cocoon after will dewatering are put into pH value, soaks to bleach the back in 2 hours and take out; E, will bleach the back silk cocoon clean up, under 60 ℃ temperature, dry, obtain the sex change silk cocoon 500g of the high content of silk gum of set, use as the filature raw material.

Embodiment two:

A, take by weighing the 1500g dried cocoon, dropping into 30 kilograms of pH values are housed is that 2 concentration are in the vacuum tank of 5% Tetrakis hydroxymethyl phosphonium chloride solution, keeps carrying out vacuum impregnation in 20 minutes when suction reaches 0.1 standard atmospheric pressure and handles; B, take out and to be placed on shady and cool place and to leave standstill 24 hours then; C, silk cocoon to be put into 20 kilograms of pH values again be 9 soda ash solutions, soaks and dewater after 5 hours; It is 10 0.1% hydrogen peroxide solution that D, the silk cocoon after will dewatering are put into pH value, soaks to bleach the back in 12 hours and take out; E, will bleach the back silk cocoon clean up, under 80 ℃ temperature, dry, obtain the sex change silk cocoon 1500g of the high content of silk gum of set, use as the filature raw material.

Embodiment three:

A, take by weighing the 1000g damaged cocoon, dropping into 20 kilograms of pH values are housed is that 6 concentration are in the vacuum tank of 9% tetra methylol sulfuric acid phosphorus solution, keeps carrying out vacuum impregnation in 20 minutes when suction reaches 0.1 standard atmospheric pressure and handles; B, take out and to be placed on shady and cool place and to leave standstill 18 hours then; C, silk cocoon to be put into 20 kilograms of pH values again be 11 soda ash solution, soaks and dewater after 9 hours; It is 8 0.1% hydrogen peroxide solution that D, the silk cocoon after will dewatering are put into pH value, soaks to bleach the back in 18 hours and take out; E, will bleach the back silk cocoon clean up, under 40 ℃ temperature, dry, obtain the sex change silk cocoon 1000g of the high content of silk gum of set, use as silk spinning raw material.

Claims

1. the production method of a cocoon glue is characterized in that making as follows:

E, cleaning, drying process: silk cocoon is cleaned up, dry under 100 ℃ the temperature or dry the silk cocoon that makes solid glue being lower than.