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Preparation method of antibacterial environmental-friendly crayon

A crayon, environmental protection technology, applied in pencil leads, household appliances, applications, etc., can solve the problems of unfavorable children's use, excessive carcinogens, broken, etc., and achieve good stability, practicability, and good repeatability.

Inactive Publication Date: 2017-11-24
WUXI NANLIGONG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A crayon is a tool for writing calligraphy and painting. It disperses the pigment in a solid or (and) liquid medium, and adheres to the surface of the solid material evenly and meticulously with the help of the medium. It can have dozens of colors; but the crayon does not have Permeability is fixed on the screen by adhesion; crayons are mainly used by children, so their main defect is that the carcinogens such as aromatic hydrocarbons produced by raw materials exceed the standard, which is harmful to children's health; Once bent during use, it will be broken, which is not conducive to children's use; in order to overcome the above defects, some water-soluble crayons have been released on the market, such as the Chinese invention patent document (application number: 200910189491. Composed of paraffin wax, water-soluble wax, filler, and coloring agent, the composition and mass percentage of the main raw materials of the washable crayon of the present invention are: paraffin wax 51.5-79.5%, water-soluble wax 10-20%, filler 10-30%, Colorant 0.2-1.5%
But the crayon of this technical scheme is easy to be broken and does not have antibacterial function

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

[0026] Embodiment 1: the composition weight ratio of the material that this antibacterial environmental protection crayon is used: polymer 35%, emulsifying wax 5%, white or colorless solid powder 30%, Chinese medicine extract 5%, developer 8%, Auxiliary color agent 7%, stearic acid 5%, binding agent 5%; Macromolecular polymer is polyethylene; Described binding agent is modified rosin; Described developer is inorganic pigment; Described inorganic pigment is Any one of titanium dioxide, carbon black, medium chrome yellow, iron oxide red, pearl powder, and luminous powder; the color aid is sodium nitrate; the white or colorless solid is calcium carbonate; the Chinese medicine extract The ingredients include Tripterygium wilfordii, licorice, honeysuckle, genkwa, wild chrysanthemum and vanilla, and the weight ratio of tripterygium, licorice, honeysuckle, genkwa, wild chrysanthemum and vanilla is 1:1.2:0.8:1:1.7:0.7.

[0027] The preparation method of this antibacterial environmenta...

Embodiment 2

[0033] Embodiment 2: The composition weight ratio of the material that this antibacterial environmental protection crayon is used: High molecular polymer 45%, emulsifying wax 10%, white or colorless solid powder 25%, Chinese medicine extract 5%, developer 7%, Auxiliary color agent 2%, stearic acid 3%, binding agent 3%; Macromolecular polymer is polyethylene; Described binding agent is modified rosin; Described developer is inorganic pigment; Described inorganic pigment is Any one of titanium dioxide, carbon black, medium chrome yellow, iron oxide red, pearl powder, and luminous powder; the color aid is sodium nitrate; the white or colorless solid is calcium carbonate; the Chinese medicine extract The ingredients include Tripterygium wilfordii, licorice, honeysuckle, genkwa, wild chrysanthemum and vanilla, and the weight ratio of tripterygium, licorice, honeysuckle, genkwa, wild chrysanthemum and vanilla is 1:1.5:1:1:1.9:0.9.

[0034] The preparation method of this antibacteria...

Embodiment 3

[0040] Embodiment 3: the composition weight ratio of the material that this antibacterial environmental protection crayon is used: macromolecular polymer 40%, emulsifying wax 8%, white or colorless solid powder 30%, Chinese medicine extract 5%, developer 11%, Color aid 1%, stearic acid 2%, binder 3%. The high molecular polymer is polyethylene; the binder is modified rosin; the color developer is an inorganic pigment; the inorganic pigment is titanium dioxide, carbon black, medium chrome yellow, iron oxide red, pearl powder, luminous Any one of the powders; the color aid is sodium nitrate; the white or colorless solid is calcium carbonate. The components of the Chinese medicine extract include Tripterygium wilfordii, licorice, honeysuckle, genkwa, wild chrysanthemum and vanilla, and the weight ratio of tripterygium, licorice, honeysuckle, genkwa, wild chrysanthemum and vanilla is 1: 1.5: 1.2: 1.5: 1.8 : 0.8.

[0041] The preparation method of this antibacterial environmental ...

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 relates to a preparation method of an antibacterial environmental-friendly crayon. The preparation method comprises the following steps of: (1) weighing raw materials according to the proportion of components, mixing white and colorless solid powder and stearic acid, and grinding uniformly for standby; (2) putting emulsified wax into a beaker, adopting a magnetic stirrer for heating and stirring to melt the emulsified wax till the emulsified wax is completely melted; (3) adding high-molecular polymer into the melted emulsified wax, and continuously stirring till the emulsified wax is completely melted; (4) adding powder, traditional-Chinese-medicine extract, a developing agent and a bonding agent, continuously stirring till to be completely dissolved and in a uniform-emulsible state, simultaneously stirring and adding a color additive till to be completely developed and uniformly stirred; and (5) adding into a mold of an extrusion molding machine to carry out molding, and forming a cylindrical product; cooling and cutting according to needs to obtain the antibacterial environmental-friendly crayon.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a preparation method of an antibacterial and environment-friendly crayon. Background technique [0002] A crayon is a tool for writing calligraphy and painting. It disperses the pigment in a solid or (and) liquid medium, and adheres to the surface of the solid material evenly and meticulously with the help of the medium. It can have dozens of colors; but the crayon does not have Permeability is fixed on the screen by adhesion; crayons are mainly used by children, so their main defect is that the carcinogens such as aromatic hydrocarbons produced by raw materials exceed the standard, which is harmful to children's health; Once bent during use, it will be broken, which is not conducive to children's use; in order to overcome the above defects, some water-soluble crayons have been released on the market, such as the Chinese invention patent document (application number: 2...

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): C09D13/00
CPCC09D13/00
Inventor 刘玉洁
Owner WUXI NANLIGONG TECH DEV
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