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Formula of plastic pencil holder

A pencil and pen holder technology, applied in the direction of pen holder, non-mechanical pencil, printing, etc., can solve the problems of heavy pen holder, high cost of long-distance transportation, unhealthy and environmentally friendly plastics, etc., and achieve the effect of weight reduction, freight saving, and enhanced cutting effect.

Inactive Publication Date: 2018-08-03
大连爱森文教用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The pen holder in the prior art is heavy and the plastic used is unhealthy and environmentally friendly, and the cost of long-distance transportation is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: high impact polystyrene (HIPS) 25, general polystyrene (GPPS) 40, wood flour 5, styrene-butadiene rubber 15, talcum powder 30, blowing agent 0.15, calcium stearate 0.2, stearin Zinc acid 0.2, toner 0.1.

Embodiment 2

[0028] Embodiment 2: high impact polystyrene (HIPS) 28, general purpose polystyrene (GPPS) 43, wood flour 8, styrene-butadiene rubber 10, talcum powder 30, blowing agent 0.12.

Embodiment 3

[0029] Embodiment 3: high-impact polystyrene (HIPS) 22, general-purpose polystyrene (GPPS) 35, styrene-butadiene rubber 13, wood powder 6, talcum powder 30, foaming agent 0.1.

[0030] The above three examples are mainly to verify that different weights of penholders can be obtained after adding different proportions of wood powder, which are reduced by about 10, 12, and 15% respectively.

[0031] The effect of various materials in the above formula is as follows:

[0032] Among them: HIPS and GPPS are used as the main materials of forming pen cores. Compared with other materials, they are low in price, easy to form, moderate in hardness and strength, and overcome the shortcomings of other materials such as insufficient strength or poor coloring.

[0033] The main function of wood flour is to reduce cost and weight, because the weight of wood flour is only about one-tenth of polystyrene, and adding 5-15% of wood flour will reduce the weight by about 10-20%. According to the c...

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PUM

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Abstract

The invention discloses a formula of a plastic pencil holder. The formula comprises materials including high impact polystyrene (modified polystyrene), general purpose polystyrene (transparent polystyrene), wood flour, butadiene styrene rubber, talc powder, calcium stearate, zinc stearate, a foaming agent and toner. A little wood flour is added to the pencil holder produced with the formula, the cutting effect of the plastic pencil holder is enhanced while the weight of the pencil holder is reduced, and particularly, the freight can be saved in large-batch transportation. The plastic pencil holder is a novel material which is resource-saving, environmentally friendly, beneficial to human health and capable of substantially reducing the labor strength.

Description

technical field [0001] The invention relates to the field of processing and manufacturing of pencil holders, and more specifically relates to a formula for plastic pencil holders. Background technique [0002] The patent number is 2011102238665, the name of the invention is plant powder-based plastic pencil and its manufacturing method, and it is recorded that a pen holder component includes (weight percentage): 40wt%~80wt% plant powder; 15wt%~50wt% resin carrier; 1wt% ~5wt% plasticizer; 1wt%~5wt% coupling agent; 0.5wt%~3wt% foaming agent. The plant powder accounts for 40wt%-80wt% of the total weight of the penholder, and a large amount of plant powder is not conducive to environmental protection, and the penholder is heavy. [0003] The patent No. is 2011103076329, the name of the invention is a kind of environment-friendly wood-plastic pencil holder and its production method, and a kind of plastic pencil holder is recorded, wherein composite stabilizer 0.5%~10%, PVC resin...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L51/04C08L97/02C08L9/06C08K3/34C08K5/098C08J9/04
CPCB43K3/00B43K19/16C08J9/0023C08J9/0061C08J9/0066C08J9/0095C08J9/04C08J2325/06C08J2409/06C08J2451/04C08J2497/02C08K3/34C08K5/098C08K2201/014
Inventor 边宏张玉君贺浩
Owner 大连爱森文教用品有限公司
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