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Grease composition for sewing machine and sewing machine using same for lubricated part

A grease composition and a technology for lubricating parts, applied in the field of sewing machines, can solve problems such as seizure and wear

Active Publication Date: 2020-03-03
KYODO YUSHI CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, failures such as wear and seizure (焼付き) still occur until now, and it is desired to develop an effective lubricant

Method used

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  • Grease composition for sewing machine and sewing machine using same for lubricated part
  • Grease composition for sewing machine and sewing machine using same for lubricated part
  • Grease composition for sewing machine and sewing machine using same for lubricated part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0063] Grease compositions of Examples and Comparative Examples were prepared using the base oils, thickeners, and organometallic anti-wear agents shown in Table 1.

[0064] The grease compositions of Examples and Comparative Examples 1 and 2 were prepared by adding 12-hydroxystearic acid to the base oil shown in the table below, heating, adding lithium hydroxide aqueous solution, and performing saponification reaction. After the reaction is completed, heat to the specified temperature, cool, add a specified amount of zinc dialkyldithiophosphate (ZnDTP), and adjust to the specified penetration with a three-roll mill.

[0065] In addition, the penetration was measured in accordance with JIS K2220.

[0066] Regarding the grease compositions of Examples and Comparative Examples, using Figure 1 to Figure 4 The test machine with the structure shown in the figure performs an endurance test by measuring the working time. Based on this, lubricating slidability, high surface pressur...

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Abstract

The invention provides a lubricating grease composition for a sewing machine and the sewing machine using the lubricating grease composition at lubricating positions, and the lubricating grease composition for the sewing machine can be effectively used at various lubricating positions in the sewing machine. The lubricating grease composition for the sewing machine comprises the following components from (a) to (c) and has a penetration of 200-260: (a) base oil including poly alpha-alkene oil, (b) metallic soap thickening agent, and (c) organic metal wear resistant agent.

Description

technical field [0001] The present invention relates to a lubricating grease composition for sewing machines and a sewing machine using the same for lubricating parts. Specifically, the present invention relates to a sewing machine grease composition applicable as a lubricant for both high-speed sliding parts and high surface pressure parts in sewing machines, and a sewing machine using the grease composition for lubricating parts. Background technique [0002] At present, the lubrication mechanism of industrial sewing machines uses oil and is mainly based on forced lubrication by pumps. In detail, lubrication is performed by an oil supply mechanism based on porous materials such as wicks and felts. [0003] Models using an oil-based lubricating mechanism include a model using a single type of oil, or a model using oils with different viscosities. In an oil-based lubricating mechanism, there is a problem of contamination of sewn products due to oil leakage from the device. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00D05B71/00C10N30/06
CPCC10M105/28C10M105/38C10M105/40C10M105/42C10M105/44C10M105/48C10M105/52C10M107/00C10M137/14C10M169/02C10M169/04
Inventor 佐佐木刚河内健柿崎充弘应性宝白石典久
Owner KYODO YUSHI CO LTD