Table tennis ball and production method thereof

A technology for table tennis balls and spheres, applied in the field of table tennis ball preparation, can solve problems such as prone to major dangerous accidents, low production efficiency, flammability and explosion, and achieve the effects of not easy internal stress cracking, low cost, and high impact strength

Active Publication Date: 2015-12-02
苏州聚慧体育用品有限公司
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solvent method has several major defects: ①The main material is nitrocellulose, which is one of the materials used to make explosives, and it is extremely flammable and explosive; ②A large amount of flammable solvents are used in the manufacturing process. waste and cause harm to the environment; ③There are many equipments, huge invest

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

Example Embodiment

[0066] Example

[0067] A kind of table tennis, its preparation method comprises the following steps:

[0068] (1) Mix the table tennis sphere raw materials according to the formula, and stir at room temperature for 0.5-1 hour until they are evenly mixed;

[0069] (2) granulating the mixed raw material of step (1) with a twin-screw extruder for subsequent use; the twin-screw extrusion condition is that the melting temperature is 190~210° C.;

[0070] (3) the granule of step (2) is placed in the injection molding machine, and injection molding obtains the hemisphere of table tennis;

[0071] (4) Bonding the hemispheres of the table tennis balls prepared in the two steps (3) by a solvent method, expanding the balls, and obtaining a complete table tennis ball after maintenance.

[0072] Table 1 provides the formula composition of the table tennis main body material of embodiment 1~8:

[0073] The formula composition table of the table tennis main body material of table 1 embod...

Example

[0077] Comparative example 2-5

[0078] Table 2 provides the formula composition of the table tennis main body material of comparative example:

[0079] raw material

[0080] ACR

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

No PUM Login to view more

Abstract

The invention relates to a table tennis ball, 40.00-40.60mm in diameter, 0.4-0.8mm in ball wall thickness and 2.1-3.5g in weight. A body of the table tennis ball comprises, by weight, 70-90wt% of body material and 10-30wt% of toughening material; the body material is engineering plastic; the toughening material is chosen from any one of, or a combination of at least two of MBS (methylmethacrylate-butadiene-styrene copolymer), ACR (methylmethacrylate-acrylate copolymer), NBR (butadiene-acrylonitrile rubber) and TPU (thermoplastic polyurethane). The engineering plastic is used as the body material of the table tennis ball, is AS and/or ABS, is not a flammable and combustible hazardous article, and accordingly is free of flaming and combusting danger; by selecting formula components, the body material high in impact strength, high in elastic modulus, rarity of internal stress cracking and high in softening temperature is obtained, and the produced table tennis ball meets the requirements of International Table Tennis Federation.

Description

technical field [0001] The invention relates to the field of table tennis preparation, in particular to a table tennis ball and a preparation method thereof, in particular to a table tennis ball without celluloid and a preparation method thereof. Background technique [0002] Since the beginning of the 1930s, the solvent method was used to manufacture table tennis in the world, and it has been used until now. However, the solvent method has several major defects: ①The main material is nitrocellulose, which is one of the materials used to make explosives, and it is extremely flammable and explosive; ②A large amount of flammable solvents are used in the manufacturing process. waste and cause harm to the environment; ③There are many equipments, huge investment, and the production line is too long. Low efficiency; ④ Major dangerous accidents are prone to occur in the storage and manufacturing process. [0003] In the eighties of the 20th century, the British Dunlop company onc...

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
IPC IPC(8): C08L55/02C08L25/12C08L33/20C08L51/04C08L33/12C08L9/02C08L75/04C08K3/22A63B67/04B29C45/76
Inventor 徐步青徐明学张松兵
Owner 苏州聚慧体育用品有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap