Environment-friendly wood-like plastic pencil

A wood and plastic imitation technology, applied in non-moving pencils, printing, writing utensils, etc., can solve the problems of large wood resources, consumption, and inconvenience, and achieve the effect of high degree of automation, protection of ecological environment, and prolongation of service life.

Active Publication Date: 2018-12-21
安徽得亿文教用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an energy-saving and environmentally friendly imitation wood plastic pencil, which can replace traditional wooden pencils and solve the problems that wooden pencils consume a large amount of wood resources and require paint spraying and coloring, which do not save energy and are environmentally friendly.

Method used

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  • Environment-friendly wood-like plastic pencil
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  • Environment-friendly wood-like plastic pencil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An environmentally friendly wood-like plastic pencil, comprising a pen holder 1, a pen core 4, a pen cover 3, and an eraser tip 2, wherein: the pen holder contains the following raw materials in parts by weight: polystyrene 50kg, talcum powder 50kg, titanium dioxide 2.6kg, hard Zinc fatty acid 0.3kg, calcium stearate 1.3kg, pigment 2kg;

[0037] The refill contains the following raw materials in parts by weight: polystyrene 80kg, talcum powder 15kg, thermoplastic elastomer SBS 15kg, graphite 80kg, zinc stearate 0.2kg, calcium stearate 1.3kg;

[0038] The pen cover contains the following raw materials in parts by weight: 90kg of polystyrene, 27kg of thermoplastic elastomer SBS, and 13kg of pigment.

[0039] The preparation technology of environment-friendly imitation wood plastic pencil comprises the following steps:

[0040] (1) Pen core granulation: Heat the internal mixer to 160°C, start it, then add the components of the lead core that have been proportioned, mix ev...

Embodiment 2

[0051]An environmentally friendly wood-like plastic pencil, comprising a pen holder 1, a pen core 4, a pen cover 3, and an eraser tip 2, wherein: the pen holder contains the following raw materials in parts by weight: polystyrene 50kg, talcum powder 50kg, titanium dioxide 2.6kg, hard Zinc fatty acid 0.3kg, calcium stearate 1.3kg, pigment 2kg, additive 3kg;

[0052] The refill contains the following raw materials in parts by weight: polystyrene 80kg, talcum powder 15kg, thermoplastic elastomer SBS 15kg, graphite 80kg, zinc stearate 0.2kg, calcium stearate 1.3kg;

[0053] The pen cover contains the following raw materials in parts by weight: 90kg of polystyrene, 27kg of thermoplastic elastomer SBS, and 13kg of pigment.

[0054] The preparation method of the additive in the pen holder is as follows: first prepare 10kg of polyglutamic acid into a saturated solution with 25°C deionized water, add 10% sulfuric acid solution dropwise to adjust the pH value to 4.5, then add 6kg of β-c...

Embodiment 3

[0067] An environmentally friendly wood-like plastic pencil, comprising a pen holder 1, a pen core 4, a pen cover 3, and an eraser tip 2, wherein: the pen holder contains the following raw materials in parts by weight: polystyrene 50kg, talcum powder 50kg, titanium dioxide 2.6kg, hard Zinc fatty acid 0.3kg, calcium stearate 1.3kg, pigment 2kg, additive 5kg;

[0068] The refill contains the following raw materials in parts by weight: polystyrene 80kg, talcum powder 15kg, thermoplastic elastomer SBS 15kg, graphite 80kg, zinc stearate 0.2kg, calcium stearate 1.3kg;

[0069] The pen cover contains the following raw materials in parts by weight: 90kg of polystyrene, 27kg of thermoplastic elastomer SBS, and 13kg of pigment.

[0070] The preparation method of the additive in the pen holder is as follows: first prepare 10kg of polyglutamic acid into a saturated solution with 25°C deionized water, add 10% sulfuric acid solution dropwise to adjust the pH value to 4.5, then add 6kg of β-...

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Abstract

The invention discloses an environment-friendly wood-like plastic pencil and relates to the technical field of pencil manufacturing processing. The pencil comprises a pencil rod, a pencil lead, a pencil cover and an eraser head. The pencil rod is prepared from 40-60 parts of polystyrene, 40-60 parts of talcum powder, 1-5 parts of titanium dioxide, 0.1-1 part of zinc stearate, 0.5-3 parts of calcium stearate and 1-5 parts of pigment. The pencil lead is prepared from 70-90 parts of polystyrene, 5-25 parts of talcum powder, 5-25 parts of thermoplastic elastomer SBS, 70-90 parts of graphite, 0.1-1part of zinc stearate and 0.5-3 parts of calcium stearate. The pencil cover is prepared from 80-100 parts of polystyrene, 20-40 parts of thermoplastic elastomer SBS and 10-30 parts of pigment. According to the plastic pencil, material selection is appropriate, the formula is reasonable, the produced pencil is attractive in appearance, free of lead shifting and breakage, moderate in roll cutting hardness, smooth in writing and high in colorability, wood is replaced with plastic, a large amount of wood is saved, and national forest resources and ecological environment are reasonably and effectively protected.

Description

Technical field: [0001] The invention relates to the technical field of pencil manufacturing and processing, in particular to an environment-friendly imitation wood plastic pencil. Background technique: [0002] Pencil is a kind of cultural school article commonly used by people, is mainly used in aspects such as writing and drawing. Its main structure is composed of a strip of lead embedded in the pen holder. Generally, the pen holder of a pencil is usually made of wood. When making it, it is usually necessary to make the log into a pen holder in the shape of a circle, a regular hexagon, or a regular octagon. High, and consume a lot of high-quality wood. At present, my country's annual output of wooden pencils is about 8 billion, which is equivalent to destroying 600 square kilometers of forest every year and consuming 400,000 cubic meters of high-quality wood. The consumption of a large amount of forest resources has seriously damaged the ecological environment. In addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K19/02B43K19/16C08K13/02C08K3/34C08K3/22C08K5/098C08L25/06C08L53/02
CPCB43K19/02B43K19/16C08K3/22C08K3/34C08K5/098C08K13/02C08K2003/2241C08K2201/014C08L25/06C08L2207/04C08L53/02
Inventor 张育玮张枫杨勇王达传
Owner 安徽得亿文教用品有限公司
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