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Seal rubber ring of paw-type rotating cover

A sealing rubber ring and unscrew cap technology, applied in sealing, closing, packaging, etc., can solve problems such as odor, large volatilization, easy migration, etc.

Active Publication Date: 2007-09-12
WUXI HUAPENG BOTTLE CAP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned problems of large volatilization, easy migration, peculiar smell, toxicity, food pollution and potential harm to human health in the sealing rubber ring made of phthalate additives in the existing metal claw twist-off cap, The invention provides a non-odor and non-toxic sealing rubber ring for metal claw-type twist-off caps, which can be used in the manufacture of high-safety and hygienic claw-type twist-off caps for food cans packaged in glass bottles

Method used

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  • Seal rubber ring of paw-type rotating cover

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Embodiment Construction

[0032] The present invention will be further described below through examples and FIG. 1 .

[0033] Weigh the parts by weight of each component as shown in Table 2 below, put the weight parts of epoxidized soybean oil, calcium stearate, paraffin, and titanium dioxide into a conventional ball mill to grind into a slurry; grind the slurry Put the material into the high-speed mixer, as shown in Table 2, for embodiment 2 to embodiment 8, add the weight of polyvinyl chloride paste resin, calcium carbonate, polyvinyl chloride blending resin and DINCH plasticizer in the high-speed mixer simultaneously part, also add the weight part of LGFLEX EBN plasticizer in addition for embodiment 5,6,7,8, do not add polyvinyl chloride blending resin for embodiment 1, other added composition and embodiment 5,6,7, 8 are the same, but the weight parts of the added ingredients are different from those of Examples 5, 6, 7, and 8; the ingredients added to the high-speed mixer in each of the above examp...

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Abstract

The invention relates to a sealing washer of claw spin-cap. Its manufacturing method show as follow: the raw materials are PVC paste resin and its reshaping accessory ingredient. The described reshaping accessory ingredient includes stabilizer ESBO and calcium stearate, paraffin lubricant, titanium dioxide pigment. It grinds the reshaping accessory ingredient to slurry, and then puts the slurry into a high-speed mixer, and then it adds PVC paste resin as main raw material and calcium carbonate as filling material, then it mixes the mixture with high-speed for 15 to 25 minutes and achieves liquid sealant through filtering. It injects the liquid sealant into the medial side of the cap and forms a thin layered liquid sealant with the high-speed rotating of the cap, and the cape is baked at 180 deg.C +- 10 deg.C for 60 to 90 seconds. Its character is that it adds the secondary raw material PVC resin, DINCH plasticizer and LGFLEX EBN plasticizer before mixing.

Description

technical field [0001] The invention relates to metal claw-type twist-off caps for glass bottle cans, in particular to a sealing rubber ring for the twist-off caps. Background technique [0002] Among canned foods for export, the proportion of exports is increasing year by year because the contents of canned food packaged in glass bottles are more intuitive, safer and hygienic than those of traditional tinplate cans. In the prior art, metal claw-type twist-off caps for food cans packaged in glass bottles, wherein the sealing rubber ring on the inside of the claw-type twist-off caps, which acts as a seal for the cans, is made of polyvinyl chloride paste resin, adding various The modified additive is made by baking at high temperature. Among the above-mentioned modified auxiliary agents, phthalates are used as the main plasticizer, and its consumption exceeds 30% in the weight ratio of the total formula. The following table 1 shows an example of the existing formula, wherein ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/09B65D53/02C08L91/06C08L91/00C08K3/22C08K3/26
Inventor 虞建伟赵伟
Owner WUXI HUAPENG BOTTLE CAP
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