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Fabric stiffening agent

A stiffening agent and initiator technology, which is applied in the field of acrylic silk protein sizing agent, can solve the problems of poor biodegradability and low strength of the serous film, and achieve the effects of easy storage and transportation, good wetting effect and low odor

Inactive Publication Date: 2014-12-24
湖州天鑫皮革涂饰剂厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the extremely poor biodegradability of PVA, which is not conducive to environmental protection, some countries in Europe and the United States have listed it as "unclean pulp" and banned it as early as the beginning of this century. In recent years, my country's textile pulp industry has also begun to vigorously It is advocated not to use or use less PVA; as the least amount of polyacrylic size among the three major types of size, although the elongation at break of the size film is relatively high, the strength of the size film is very low, which is called "" soft but not firm”
In addition, the hygroscopic and re-adhesive phenomenon of polyacrylic size is very serious. These defects make the size can only be used in small proportions to assist other main types of size.

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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  • Fabric stiffening agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 prepares acrylic acid composite liquid:

[0025] 1) First add 100kg of water to the reactor, and then heat it to 75°C;

[0026] 2) add initiator (ammonium persulfate), and stop heating simultaneously;

[0027] 3) Stir while adding the prepared composite raw materials dropwise, and continue for about 60 minutes;

[0028] 4) Keep warm for 2 hours afterwards;

[0029] 5) Add 40kg of ammonia water, and then add 70kg of alcohol to obtain the acrylic compound liquid, which is set aside;

[0030] Step 3) The composite raw materials are: 10kg of vinyl acetate, 5kg of styrene; 90kg of methyl acrylate; 20kg of butyl acrylate; 15kg of methyl methacrylate;

Embodiment 2

[0031] Embodiment 2 prepares fibroin solution and stiffening agent finished product:

[0032] 1) Weigh a certain amount of 500g cocoon layer of the silk reeling head, place it in 10L of 0.5% sodium carbonate boiling solution and treat it for 20min to carry out degumming. Then take out the silk, wash it repeatedly with distilled water, wring it out, and dry it to obtain completely degummed silk, that is, silk protein fiber;

[0033] 2) Weigh 50 g of degummed silk protein fibers, place them in 1 L of calcium chloride boiling solution with a mass concentration of 60%, and treat them for about 4 minutes until the silk protein fibers are completely dissolved. Stir with a glass rod to obtain a fibroin / calcium chloride mixed solution. Filtrating the above mixed solution with gauze for rough extraction to obtain a salted silk protein solution;

[0034] 3) Mix the acrylic compound solution obtained in Example 1 and the silk protein solution obtained in step 3), and finally release an...

Embodiment 3

[0036] Embodiment 3: Stiffening agent viscosity and stability test

[0037] The stiffening agent obtained in Example 2 was used for testing.

[0038] Viscosity test: start after normal temperature, and test the change of viscosity on the viscometer at regular intervals.

[0039] Stability test: mainly through the objective observation method, after room temperature, observe whether the slurry is delaminated and the delamination ratio (upper layer than lower layer) at regular intervals.

[0040] Table 1 Stiffener viscosity and stability test

[0041]

[0042] It can be seen from Table 1 that the stiffening agent obtained by the present invention has moderate viscosity, is easy to use, and has excellent stability, and there is no obvious delamination after 180 days.

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Abstract

The invention discloses a fabric stiffening agent. The fabric stiffening agent is prepared by the following steps: (1) adding 100kg of water into a reaction still and heating to 75 DEG C; (2) adding an initiator (namely ammonium persulfate) while stopping heating; (3) dropwise adding the prepared composite raw material while stirring for about 60min; (4) preserving heat for 2 hours; (5) adding ammonium hydroxide, and then adding ethyl alcohol to obtain acrylic acid composite liquid for later use; (6) preparing a salt hydrolyzed silk protein solution; and (7) mixing the acrylic acid composite liquid obtained in the step (5) and the silk protein solution obtained in the step (6) to obtain the finished product.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to an acrylic fibroin sizing agent, a dye used for printing and dyeing sizing, increasing hardness and weft density of cloth and a preparation method thereof. Background technique [0002] Stiffening finishing is a kind of fabric post-finishing. It makes the fibers in the fabric yarn bond under certain conditions by padding the stiffening agent. The stiffening agent forms a film or Produce cross-linking, so that the fabric has a stiff, thick and plump feel. It is widely used in the finishing process of decorative fabrics, especially the stiffening of curtain fabrics, bag fabrics, warp knitted fabrics and interlinings. [0003] Mulberry cocoon silk is a kind of natural protein fiber, which has good affinity to natural fibers. It is mainly composed of 70% to 80% silk protein, 20% to 30% sericin and a small amount of wax and inorganic substances. Silk protein is composed of...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/263D06M15/15C08F220/14C08F220/18C08F212/06C08F218/08C08F220/06
Inventor 陈金林
Owner 湖州天鑫皮革涂饰剂厂
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