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clay coin making process

A technology for making clay coins, which is applied in the field of clay coin making, can solve the problems of simple appearance, easy air-drying and cracking, poor mechanical properties of clay coins, etc., and achieve the effect of beautiful appearance, low cost and realistic effect

Active Publication Date: 2018-01-23
WUXI NIYANFANG CULTURE ORIGINALITY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the disadvantages of mud products in the prior art, such as poor appearance, and provides a mud coin manufacturing process, which not only solves the problems of poor mechanical properties, easy air-drying and cracking of existing mud coins, but also has a delicate and beautiful appearance, and improves the quality of mud coins. Art taste and collection value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1-3: The clay is pulverized to 120 mesh, 300 mesh and 350 mesh, the humidity is controlled at 6%, the clay powder after humidification is molded, and the molding pressure is 30MPa, 10MPa, 20MPa, and it is dried in the shade, air-dried and sun-dried respectively , after standing for a period of time, no dust appeared, and then according to the process steps, the mud was coated with 100 μm transparent self-crosslinking acrylic resin, water-soluble amino resin and self-drying alkyd resin, and then coated with carbon powder after the film was dry The mixture with the acrylic resin mass ratio of 1:3 was tested, and it was found that Huishan mud in Example 1 was soaked under a certain pressure for 72 hours without obvious leakage; the water-soluble amino resin used in Example 2 has good stability and chemical resistance. Corrosive, can withstand frequent water immersion tests without leakage; the self-drying alkyd resin selected in Example 3 has excellent adhesion and ...

Embodiment 4

[0039] Example 4-5: A clay material with a mesh number of 150 and a plasticity of 4.0 was used, the humidity was controlled at 12%, and the molding pressure was increased to 40 MPa. After the mud was demoulded and dried in the shade, there were no visible cracks, and no cracks appeared after being placed for a period of time. dust. According to the process steps, the mud base is coated with 90 μm water-soluble polyurethane resin / isocyanate and common acrylic resin respectively, and after the film is dry, the mixture of carbon powder and water-soluble polyurethane resin mass ratio is 10:1. It is found that the mixture of embodiment 4 After the water-soluble polyurethane resin is cured, the surface is relatively soft and easy to scratch, which is not conducive to operation, and there is a slight leakage phenomenon when scrubbing with water; in Example 5, the surface of the clay coin is frequently scrubbed with water, and leakage occurs, indicating that ordinary water-soluble acry...

Embodiment 6-7

[0040] Embodiment 6-7: Adopt the clay material that mesh number is 150, plasticity is respectively 6.0 and 7.0, and molding pressure is 30MPa, and moisture content is respectively 16% and 20%, and humidity is too big, and operability is not good, and mud pattern It was not clear before, it was not firm enough after demoulding, and there were slight cracks after drying in the shade. According to the process steps, the surface is coated with a self-crosslinking acrylic resin waterproof coating. After the film is dry, it is coated with a mixture of carbon powder and water-soluble polyurethane resin with a mass ratio of 10:1. The test found that soaking for 72 hours under a certain pressure There is a slight leak, but the phenomenon is not particularly serious.

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Abstract

The invention provides a mud coin making process, which includes pretreatment, molding, drying, and also includes coating process and post-treatment; the coating process is to coat a first layer of transparent water-soluble resin or grease on the surface of the dried mud blank Soluble resin; apply a layer of colored resin after drying, wipe off part of the colored resin after drying, and partially reveal the natural color of mud, and then apply a layer of transparent water-soluble resin or fat-soluble resin. The post-treatment includes matte surface treatment and slurry effect polishing surface treatment. The invention solves the problems of poor mechanical properties and easy air-drying and cracking of the existing mud coins, and adds a coating process, a matte surface treatment or a post-treatment process such as a slurry effect polishing surface treatment, so that the surface of the product exhibits natural weathering erosion and falling off. The resulting ornamentation, especially the imitation of bronze color and copper effect, can be realistic, exquisite and beautiful, and enhance the artistic taste and collection value of mud coins.

Description

technical field [0001] The invention belongs to the technical field of clay ornaments, and in particular relates to a process for making clay coins. Background technique [0002] Compared with other raw materials, ordinary clay is used to make clay coins. Compared with other raw materials, it is convenient to obtain materials, and has advantages in terms of cost and environmental protection. However, there are still many difficulties in making clay coins with clay, such as poor mechanical properties, easy to dry and crack, etc., which limits further development to a large extent, especially the appearance of existing clay coins is directly the natural color of clay, which feels rough and not very beautiful. It does not have artistic beauty, which limits the purchasing desire of tourists or buyers. Contents of the invention [0003] The present invention mainly aims at defects such as poor appearance of clay products in the prior art, and provides a clay coin manufacturing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B44C5/00B44C3/04C04B26/02C04B41/63
Inventor 刘云峰
Owner WUXI NIYANFANG CULTURE ORIGINALITY CO LTD
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