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Erasable colored pencil lead material and preparation method thereof

A technology of lead and color, applied in the field of erasable colored lead material and its preparation, can solve the problems of poor wipeable effect of colored lead, and achieve the effect of being suitable for large-scale production, simple operation, and good wipeable effect

Pending Publication Date: 2020-09-01
苏州马培德办公用品制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor wipeable effect of existing colored lead cores, the present invention proposes a wipeable colored lead core material and a preparation method thereof

Method used

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  • Erasable colored pencil lead material and preparation method thereof
  • Erasable colored pencil lead material and preparation method thereof
  • Erasable colored pencil lead material and preparation method thereof

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preparation example Construction

[0029] The invention also discloses a preparation method of a wipeable colored lead material, which comprises the following steps:

[0030] S1: Put the raw materials of acrylonitrile-styrene-butadiene copolymer, nitrile rubber and SEBS in a dryer for drying at a temperature of 50-80°C, and the moisture content after drying should not exceed 3%;

[0031] S2: Add the dried raw materials of S1 into a high-speed blender in proportion and stir for 5-20 minutes to make them dispersed without agglomeration, then add fillers, pigments and lubricating systems in proportion and stir for 20-50 minutes, and mix well;

[0032] S3: The uniformly mixed raw materials in S2 are extruded through an extruder at a temperature of 180-220°C, and then hot-cut by an air-cooled die surface to obtain a wipeable colored lead.

Embodiment 1

[0035] Preparation of a wipeable colored lead material:

[0036] Put 10 parts of acrylonitrile-styrene-butadiene copolymer, 15 parts of nitrile rubber, and 8 parts of SEBS into the dryer for drying at 80°C, and the moisture content after drying is not more than 3%. . Add the above-mentioned raw materials after drying into a high-speed blender and stir for 10 minutes to make them dispersed without agglomeration. Weigh 15 parts of talcum powder, 12 parts of phthalocyanine blue, and 5 parts of lubricating system in sequence and add them to a high-speed blender and stir for 30 minutes to fully mix the raw materials evenly. The stirred raw materials are extruded through an extruder at a temperature of 210°C, and then heated through an air-cooled die surface to obtain a wipeable colored lead core material.

Embodiment 2

[0038] Preparation of a wipeable colored lead material:

[0039] Put 10 parts of acrylonitrile-styrene-butadiene copolymer, 18 parts of nitrile rubber, and 10 parts of SEBS into the dryer for drying at a temperature of 80°C, and the moisture content after drying is not more than 3%. . Add the above-mentioned raw materials after drying into a high-speed blender and stir for 10 minutes to make them dispersed without agglomeration. Sequentially weigh 8 parts of talcum powder, 14 parts of phthalocyanine blue, and 5 parts of lubricating system and add them to a high-speed blender and stir for 30 minutes to fully mix the raw materials evenly. The stirred raw materials are extruded through an extruder at a temperature of 210°C, and then heated through an air-cooled die surface to obtain a wipeable colored lead core material.

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Abstract

The invention discloses an erasable colored pencil lead material. The material comprises the following components in parts by weight: 5-15 parts of acrylonitrile-styrene-butadiene copolymer; 10-20 parts of nitrile rubber; 5 to 10 parts of SEBS; 1-5 parts of a lubricating system; 8-20 parts of a filler; 10-20 parts of pigment. The acrylonitrile-styrene-butadiene copolymer is selected and compoundedwith the optimized nitrile rubber and SEBS erasing carrier, so that the erasable colored pencil lead material has a very good erasable effect while the coloring effect is kept; when drawing errors occur, an eraser can be used for erasing and correcting the drawing errors, and use is convenient. The invention further discloses a preparation method of the erasable colored pencil lead material; andthe preparation method is simple to operate and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a wipeable colored lead material and a preparation method thereof. Background technique [0002] Pencils are a very versatile writing and drawing tool, and colored pencils have long provided joy to children and others. With the colored pencils currently on the market, it is difficult for the user to use the eraser to erase and correct once the user makes a mistake in the coloring process. Patent CN1302316A discloses a kind of erasable colored pencil lead, but the wiping effect of the lead core is relatively poor. [0003] Therefore, it is necessary to study a kind of erasable colored lead material, which has good erasable effect while maintaining the coloring effect. Contents of the invention [0004] In order to solve the problem of poor wipeable effect of existing colored lead cores, the invention proposes a wipeable colored lead core material and a preparation method there...

Claims

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Application Information

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IPC IPC(8): C09D13/00
CPCC09D13/00
Inventor 张程
Owner 苏州马培德办公用品制造有限公司