Technical method for paint decoration on surface of pencil

A process method and paint technology, applied in the direction of coating, polyester paint, etc., can solve the problems of restricting production efficiency and slow surface drying rate of paint, so as to improve drying temperature and air flow speed, reduce the number of times of painting, and improve production efficiency Improved effect

Inactive Publication Date: 2014-07-30
AXUS STATIONERY (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The paint decoration process steps on the pencil surface in the above-mentioned traditional pencil production method has always had the problem of a slow surface drying rate of the paint. Usually, the surface drying takes 60 seconds, which greatly restricts the improvement of production efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The processing method of the pencil surface paint decoration of the present embodiment comprises the following steps:

[0019] (1) Prepare paint raw materials according to the following components and weight percentage content: nitrocellulose 25%, methyl acetate 25.2%, ethyl acetate 7.5%, acetyl tri-n-butyl citrate plasticizer 2.3%, alkyd resin 7.5% , aldehyde and ketone resin 7.5%, pigment 10%, fumed silica matte powder 5%, castor oil 10%; wherein, the solvent of alkyd resin is ethyl ester, and the ethyl ester accounts for 2.2% of the total weight of the paint, alcohol Dongsheng 3370B alkyd resin can be used for acid resin, and Junwo B102 aldehyde and ketone resin can be used for aldehyde and ketone resin;

[0020] (2) After the castor oil and the pigment are stirred evenly, they are ground and dispersed into a pigment slurry on a three-roller grinder, and dispersed to a fineness of less than 30 μm for subsequent use;

[0021] (3) Add ethyl acetate to the mixing tank ...

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Abstract

The invention discloses a technical method for paint decoration on the surface of a pencil. A solvent such as methyl acetate, ethyl acetate and acetone with high volatilization rate is selected in the preparation process of a paint, matt powder is added to enable the paint to be more rapidly volatilized, and meanwhile, the drying temperature and the air flow velocity are increased to ensure that the surface dry time of the paint is shortened from 60s to 10s, so that the thickness of a film painted every time can be increased from 10mu m to 15mu m, and the covering power of the paint is also enhanced; and due to the increment of the thickness of the film, the painting times can be correspondingly reduced from 10 to 6, and finally, the production efficiency is increased by 30-40%.

Description

technical field [0001] The invention relates to a process method for preparing pencils, in particular to a process method for paint decoration on the surface of pencils. Background technique [0002] At present, the general production steps of a pencil are as follows: 1. Rod forming: the cut pencil board is grooved by a router, the rubber core of the rubber core machine, the rod of the rod making mechanism, etc., to produce the formed pencil blank; 2. Finished product processing: paint and decorate the surface of the previously prepared pencil blank to increase the appearance of the pencil; 3. Pack and leave the factory. [0003] The pencil surface paint decoration process step in the above-mentioned traditional pencil production method always has the problem that the surface drying rate of the paint is relatively slow, usually it takes 60 seconds for the surface drying, which greatly restricts the improvement of production efficiency. Contents of the invention [0004] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/18C09D167/08C09D161/02C09D7/00C09D7/12
Inventor 王卫刘冰顾春红倪庆生
Owner AXUS STATIONERY (SHANGHAI) CO LTD
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