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Tailor's chalk and its making process

A technology of raw materials and content, applied in pencil leads, household appliances, applications, etc., can solve the problems of not easy coloring, affecting product performance, drying and hardening, etc., so as to achieve low cost increase, low consumption, and prevent drying. hardening effect

Inactive Publication Date: 2007-03-21
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the substance that is easy to sublime, the product will become dry and hard due to the sublimation of the raw materials when placed for a long time, and the surface will be rough, making the chalk difficult to color and affecting the performance of the product; users will have the smell of chalk on their hands after touching it, and the product will be sublimated. And the smell will also affect the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In terms of weight percentage, PVA124 1.5%, sodium lauryl sulfate 1.0%, sodium carboxymethyl cellulose 0.3%, and water as the balance, mix them at room temperature, and heat and stir at a constant temperature of 90-95°C Dissolve it completely until it becomes a uniform colorless and transparent solution. After cooling to room temperature (about 22°C), soak the chalk in the solution, take it out after about 30 minutes, and dry it in the air at room temperature.

Embodiment 2

[0015] In terms of weight percentage, mix PVA1788 1.5%, sodium dodecylsulfonate 1.5%, sodium carboxymethyl cellulose 0.3%, and water at room temperature, and heat at a constant temperature of 90-95°C Stir to dissolve completely until it becomes a uniform colorless and transparent solution. After cooling to 25°C, soak the chalk in the solution, take it out after about 30 minutes, and dry it in the air at room temperature.

Embodiment 3

[0017] In terms of weight percentage, PVA0588 2.0%, sodium stearate 0.5%, sodium carboxymethyl cellulose 0.2%, and water as the balance are mixed at room temperature, heated and stirred at a constant temperature of 90 to 95°C to make it Completely dissolve until it becomes a uniform milky white transparent solution. After cooling to 30°C, soak the chalk powder in the solution, take it out after about 30 minutes, and dry it in the air at room temperature.

[0018] Comparing the coated chalk and uncoated chalk in the examples, it is found that the former is still smooth and uniform in appearance, and hardly smells the smell emitted by the product, while the latter is rough in appearance and has a strong smell due to the sublimation of raw materials; After placing it for two months, it was found that the former was darker and smoother than the latter.

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PUM

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Abstract

The tailor's chalk has material comprising 2-methoxy naphthalene 29-85 weight portions, calcium stearate 1-5 weight portions, and sodium dodecylsulfate 2-6 weight portions, as well as camphor, stearic acid and other assistants. After forming with the said materials, one layer of protecting film is formed on the surface of the tailor's chalk. Compared with fading tailor's chalk, the tailor's chalk of the present invention has the advantages of smooth surface, no sublimation, excellent maintained use performance, etc.

Description

technical field [0001] The invention relates to a scribing powder used in the field of garment processing, more specifically to a scribing powder with a protective film that is environmentally friendly, fragrant, insect-proof, heat-sensitive, and capable of sublimation and fading. Background technique [0002] At present, ordinary scribing powder and invisible scribing powder are often used in the field of clothing production. The ordinary scribing powder cannot be removed by itself, which brings inconvenience to garment processing; although the invisible scribing powder can disappear by itself within a certain period of time, it is not easy to fade off easily. , and contains salicylic acid and other toxic substances, long-term use is not good for the health of users. In order to solve the above problems, our research group once applied for a patent to propose a kind of fadeable chalk, which is characterized in that its components and their contents include: 2-methoxynaphtha...

Claims

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Application Information

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IPC IPC(8): C09D13/00
Inventor 仝晓菲温广明梁文婷双少敏董川
Owner SHANXI UNIV
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