Lacquering method for wooden pencil

A pencil and wood technology, applied in the field of wooden pencil preparation, can solve problems such as affecting the quality of pencils, easy peeling of paint, backward painting process, etc., and achieve the effects of improving cutting effect, not easy to decolorize, and low cost

Inactive Publication Date: 2018-04-27
界首市元宝山木制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the pencil painting process is relatively backward, which causes the paint on the surface...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for painting wooden pencils, comprising the following steps:

[0019] (1) After the surface of the formed wooden pencil is polished with 800# sandpaper, the surface is sprayed with a modification solution, wherein the modification solution is made of the following components by weight: castor oil 4 parts, D-methyl lactate 6 parts , 20 parts of isopropanol;

[0020] (2) Brush shellac paint on the surface of the wooden pencil treated in step (1), wherein the shellac paint is made of the following components by weight: 32 parts of purple shellac flakes, 4 parts of isopropyl citrate, 4 parts of isopropyl citrate, 69 parts of propanol;

[0021] (3) 2 hours after the shellac paint is painted, the colored topcoat is evenly painted on the surface of the wooden pencil, and after drying, the finished product is obtained, wherein the colored topcoat is made of the following components by weight: polyacrylic acid 36 parts of ester emulsion, 6 parts of film-forming aid, 1...

Embodiment 2

[0028] A method for painting wooden pencils, comprising the following steps:

[0029] (1) After the surface of the formed wooden pencil is polished with 800# sandpaper, the surface is sprayed with a modification solution, wherein the modification solution is made of the following components by weight: 6 parts of castor oil, 8 parts of D-methyl lactate , 23 parts of isopropanol;

[0030] (2) Brush shellac paint on the surface of the wooden pencil treated in step (1), wherein the shellac paint is made of the following components by weight: 36 parts of purple shellac flakes, 7 parts of isopropyl citrate, 7 parts of isopropyl citrate, 73 parts of propanol;

[0031] (3) 2.5 hours after the shellac paint is painted, evenly paint the colored topcoat on the surface of the wooden pencil, and after drying, the finished product is obtained, wherein the colored topcoat is made of the following components by weight: polyacrylic acid 38 parts of ester emulsion, 8 parts of film-forming aid...

Embodiment 3

[0038] A method for painting wooden pencils, comprising the following steps:

[0039] (1) After the surface of the formed wooden pencil is polished with 800# sandpaper, the surface is sprayed with a modification solution, wherein the modification solution is made of the following components by weight: 8 parts of castor oil, 10 parts of D-methyl lactate , 25 parts of isopropanol;

[0040] (2) Brush shellac paint on the surface of the wooden pencil treated in step (1), wherein the shellac paint is made of the following components by weight: 38 parts of purple shellac flakes, 9 parts of isopropyl citrate, 9 parts of isopropyl citrate, 75 parts of propanol;

[0041] (3) 3 hours after the shellac paint is painted, evenly paint the colored topcoat on the surface of the wooden pencil, and after drying, the finished product is obtained, wherein the colored topcoat is made of the following components by weight: polyacrylic acid 42 parts of ester emulsion, 10 parts of film-forming aid...

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PUM

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Abstract

The invention discloses a lacquering method for a wooden pencil. The method includes the following operation steps: (1) using 800# abrasive paper to perform polishing treatment on the surface of a moulded wooden pencil, and then spraying a modification solution on the surface; (2) brushing shellac varnish on the surface of the wooden pencil subjected to treatment by step (1); and (3) 2-3h later after brushing of the shellac varnish, brushing colored finish paint on the surface of the wooden pencil evenly, and conducting drying to obtain a finished product. The lacquering method for the woodenpencil provided by the invention has the advantages of simple operation, low cost, green and environmental protection, the prepared pencil has the characteristics of smooth surface, no crack, uniformcolor and difficult decolorization, and the quality of the pencil is greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of preparation of wooden pencils, in particular to a method for painting wooden pencils. Background technique [0002] Wooden pencils have a history of hundreds of years. They are easy to write, fluent and can be wiped. They are beneficial for students to practice, draft or draw. At present, pencils are still commonly used writing tools and have broad market prospects. The pencil manufacturing process is to apply pencil core glue to the upper and lower mold surfaces and grooves of the pencil sheet, then put the pencil lead into the groove of the lower mold, then combine the upper and lower molds, and then clamp them with a clamp. After the glue is solidified, it enters the subsequent processes of planing, molding, and painting. In the prior art, the pencil painting process is relatively backward, which causes the paint on the surface of the pencil to fall off easily during the use of the pencil, which serio...

Claims

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Application Information

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IPC IPC(8): C09D193/02C09D133/04C09D7/63C09D7/61B27K3/02B27K3/50
CPCC09D193/02B27K3/0228B27K3/50C08K5/101C08K5/1525C08K2003/2296C08K2201/011C08L2205/03C09D133/04C08L79/02C08K13/02C08K3/22C08L79/04
Inventor 于杰
Owner 界首市元宝山木制品有限公司
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