Thermosensitive reversible color-changing colored pencil lead and pencil thereof

A heat-sensitive, lead-core technology, applied in the direction of pencil lead, non-active pencil, printing, etc., can solve the problems of surrounding environmental pollution, inability to repair or remove drawn patterns or characters, waste debris, etc.

Inactive Publication Date: 2021-04-13
LOTUS STATIONERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most colored pencils are not erasable, and the drawn patterns or text cannot be repaired or removed. There are also some colored pencils that can be erased with an eraser, but they will still leave faint traces and produce a certain amount of waste. pollute the surrounding environment

Method used

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  • Thermosensitive reversible color-changing colored pencil lead and pencil thereof
  • Thermosensitive reversible color-changing colored pencil lead and pencil thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The ingredients of the heat-sensitive reversible color lead core include the following components in parts by weight: 90 parts of kaolin, 10 parts of adhesive, 40 parts of heat-sensitive reversible color paste, 10 parts of paraffin wax, 6 parts of carnauba wax, emulsified 3 parts of agent, 20 parts of stearic acid and 15 parts of water.

[0043] Preparation:

[0044] Step 1: Weigh the amount of heat-sensitive reversible color paste and kaolin into the kneader, stir and knead evenly, then add the dissolved adhesive and water, and continue kneading for 30 minutes;

[0045] Step 2: Weigh the paraffin wax, stearic acid, carnauba wax and emulsifier in the formula and heat them together to 80°C, add them into the kneader after melting completely, and knead at 45°C for 30 minutes;

[0046] Step 3: Cool and discharge the material so that the moisture content of the mixed material is 13%, and grind the material through a three-roller machine so that the moisture content of the ...

Embodiment 2

[0050] The ingredients of the heat-sensitive reversible color lead core include the following components in parts by weight: 93 parts of kaolin, 113 parts of adhesive, 45 parts of heat-sensitive reversible color paste, 13 parts of paraffin wax, 7 parts of carnauba wax, emulsified 3.5 parts of agent, 25 parts of stearic acid and 23 parts of water.

[0051] The preparation method is the same as in Example 1.

Embodiment 3

[0053]The ingredients of the heat-sensitive reversible color lead core include the following components in parts by weight: 95 parts of kaolin, 15 parts of adhesive, 50 parts of heat-sensitive reversible color paste, 15 parts of paraffin wax, 8 parts of carnauba wax, emulsified 4 parts of agent, 30 parts of stearic acid and 30 parts of water.

[0054] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a thermosensitive reversible color-changing colored pencil lead and a pencil thereof. The thermosensitive reversible color-changing colored pencil lead comprises the following components in parts by weight: 90-95 parts of kaolin, 10-15 parts of an adhesive, 40-50 parts of temperature-sensitive reversible color-changing color paste, 10-15 parts of paraffin, 6-8 parts of palm wax, 3-4 parts of an emulsifier, 20-30 parts of stearic acid and 15-30 parts of water. According to the thermosensitive reversible color-changing colored pencil lead and the pencil thereof, the pencil lead prepared from the thermosensitive color-changing color paste has the characteristics of smoothness in writing, easiness in coloring and difficulty in breaking, handwriting color can be easily erased through friction or other heating modes, the reversible property of subzero color reversion is achieved, errors in the writing process can be easily corrected and corrected, and no trace or chippings are left.

Description

technical field [0001] The invention relates to the technical field of stationery and educational utensils, in particular to a thermosensitive reversible color lead and a pencil thereof. Background technique [0002] Thermochromic materials are functional materials whose color changes significantly with temperature within a certain temperature range. As early as more than a hundred years ago, people discovered the phenomenon of thermal discoloration. The comprehensive research and application of thermochromic materials has a history of 60 to 70 years, and it has a history of more than 30 years in our country. After decades of research and development, people have developed various materials with thermochromic properties such as inorganic, organic, liquid crystal, polymer and biological macromolecules, and low-temperature thermosensitive color-changing pigments suitable for inks. [0003] Thermochromic materials are basically irreversible thermochromic materials in the earl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D13/00B43K19/02B43K19/18
CPCC09D13/00B43K19/02B43K19/18
Inventor 黄小喜
Owner LOTUS STATIONERY
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