Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Surface treatment of molded resin products

A surface treatment, resin mold technology, applied in the direction of pretreatment surface, device for coating liquid on the surface, coating, etc., can solve the problems of difficult surface treatment state, deformation of molded products, unsuitable to use chemical modification treatment methods, etc. , to achieve the effect of beautiful printing and coating, high-precision size

Inactive Publication Date: 2005-05-11
SUMITOMO RUBBER IND LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the existing chemical treatment methods have the disadvantages of being too expensive and requiring large-scale equipment
[0007] In addition, with the existing processing methods, it is difficult to obtain a uniform surface treatment state when the resin molded product has a complex shape such as a cylinder or a cylinder.
In addition, it is difficult to control the processing conditions, and the required sufficient adhesive strength of coatings cannot be obtained.
[0008] Also, molded articles are deformed due to heat generated during handling
Especially for delicate molded products that require high dimensional accuracy, it is not suitable to use the existing chemical modification treatment method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0047] The following are specific examples (Example 1-Example 6) of the surface treatment method of the present invention, wherein the evaluations of the printing adhesion strength, the degree of deformation of the resin molded product, and the gloss of the printed surface are shown in Table 1. . In Table 1, Comparative Examples 1 to 7 are also shown for comparison therewith.

[0048] processing time

(Minute)

ten point average rough

Roughness (μm)

Printing Adhesion Strength

Number of remaining grids / 100

evaluate ※

Deformation Evaluation

Gloss evaluation

Example 1

9

10.0

100 / 100

○

○

○

Example 2

10

13.0

100 / 100

○

○

○

Example 3

12.5

14.5

100 / 100

○

○

○

Example 4

15

15.0

100 / 100

○

○

○

Example 5

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
Login to View More

Abstract

The object of the present invention is to provide a method for surface treatment of resin molded products, which improves the adhesion strength between the surface of resin molded products that are difficult to print and coat, ink and paint, and does not damage the resin molded products. Dimensional accuracy. The specific method is to add resin moldings that are not easy to print and apply, grinding stones, and water into the treatment tank to make them flow in a vortex shape. By colliding the resin moldings with the grinding stone, ten parts of the resin molding surface can be removed The point average roughness is roughened to 10μm~40μm.

Description

technical field [0001] The present invention relates to a method for surface treatment of resin molded articles which are difficult to print and apply. Background technique [0002] For resin molded products such as polyoxymethylene molded products that are difficult to print and coat, when printing and coating the surface, the current method is to activate the surface of the resin molded product in advance. [0003] For this surface treatment, because conventional mechanical surface treatment methods such as sandpaper treatment cannot obtain sufficient adhesive strength of paint, etc., corona discharge treatment, short-wave ultraviolet treatment, plasma etching treatment, and frame treatment are used. The surface is chemically modified (for example, refer to Non-Patent Document 1). [0004] [Non-Patent Document 1] Polyplastics, Technical Support, [online], 2002, [retrieved on August 20, 2003], Internet: [0005] <URL: http: / www.polyplastic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B05D3/12B05D7/02B29C59/02C08J7/00
Inventor 滨田明彦木村昭孝
Owner SUMITOMO RUBBER IND LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com