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Pencil production method for a pencil

A production method and pen holder technology, which can be applied to pen holders, non-mechanical pencils, printing and other directions, can solve problems such as remaining straw, and achieve the effects of easy rolling, good quality of finished products, and saving wood resources.

Active Publication Date: 2017-01-11
胡平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the above problems, the present invention provides a method for producing a pencil holder, which uses straw as raw material, saves wood, and solves the problem of a large amount of remaining straw; and the production process is simple, time-saving and labor-saving

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for producing a penholder of a pencil, the penholder is made of wheat straw, the production method of the penholder comprises the following steps:

[0027] (1) drying the wheat straw, the water content is lower than 10%;

[0028] (2) Broken, the particle size is 15 mesh;

[0029] (3) Add urea-formaldehyde resin 14%, starch 6% (mass ratio);

[0030] (4) stirring;

[0031] (5) add ammonium chloride 8% (mass ratio), add ammonium chloride when extruding of forming machine;

[0032] (6) Heating and shaping, the heating temperature is 142° C., and the heating time per centimeter is 22 seconds.

Embodiment 2

[0034] A method for producing a penholder of a pencil, the penholder is made of corn stalks, the production method of the penholder comprises the following steps:

[0035] (1) drying the corn stalks, the water content is lower than 10%;

[0036] (2) Broken, the particle size is 20 mesh;

[0037] (3) Add urea-formaldehyde resin 10%, starch 10% (mass ratio);

[0038] (4) stirring;

[0039] (5) add ammonium chloride 4% (mass ratio), add ammonium chloride when extruding of molding machine;

[0040] (6) Heating and shaping, the heating temperature is 150° C., and the heating time per centimeter is 18 seconds.

Embodiment 3

[0042] A method for producing a penholder of a pencil, the penholder is made of straw, and the method for producing the penholder comprises the following steps:

[0043] (1) drying the stalks, the water content is lower than 10%;

[0044] (2) Broken, the particle size is 16 mesh;

[0045] (3) Add urea-formaldehyde resin 12%, starch 8% (mass ratio);

[0046] (4) stirring;

[0047] (5) add ammonium chloride 5% (mass ratio), add ammonium chloride when extruding of forming machine;

[0048] (6) Heating and shaping, the heating temperature is 146° C., and the heating time per centimeter is 20 seconds.

[0049] The straw is a mixture of wheat straw and corn straw.

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PUM

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Abstract

The invention discloses a penholder for a pencil and a production method thereof. The penholder is made of a straw. The production method for the penholder comprises the following steps: (1) airing the straw till the water content is lower than 10%; (2) crushing till the grain size is 15-20 meshes; (3) adding 10-14% of urea resin and 6-10% of starch (according to a mass ratio); (4) stirring; (5) adding 4-8% of ammonium chloride (according to the mass ratio) and extruding from a forming machine; (6) heating and sizing. According to the invention, the straw of wheat and corn is utilized to produce the penholder of the pencil, so that a large amount of timber resources are saved, and the problems of piling of a large amount of straws and inconvenience in treating are solved; the production method is simple; the quality of finished products is higher; the penholder is incapable of ungluing, is easy to roll and cut and meets national standards.

Description

technical field [0001] The invention relates to the technical field of pencil processing, in particular to a method for producing a pencil barrel. Background technique [0002] A pencil is a writing medium with a refill made of graphite or pigmented clay, and is used as a writing or drawing tool for learning, office work, engineering drawing, art, painting, various marks, etc. According to the nature and use, it can be divided into three categories: graphite pencils, colored pencils, and special pencils. [0003] Since 98% of the main material of wooden pencils is high-quality basswood, only one enterprise that produces 100 million pencils a year needs to consume 3,400 acres of forest. However, the annual production of pencils in China is more than 20 billion, consuming trillions of acres of forest resources; when people use traditional pencil holders, they often only use half of the traditional pencil heads and throw them directly into the trash can, which is very wasteful...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43K19/16B43K3/00
Inventor 胡平
Owner 胡平