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PVC gloves and preparation method thereof

A technology of gloves and polyester plasticizers, applied in gloves, clothing, protective clothing, etc., can solve problems such as environmental pollution, high viscosity of paste, and increased cost of gloves

Active Publication Date: 2021-12-21
山东蓝帆新材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary disposable PVC gloves contain small molecule plasticizers, and the plasticizers will migrate to the food when in contact with oily food, which cannot meet the food regulations of some countries
Conventional food-grade PVC gloves need to use macromolecular high-viscosity polyester plasticizers (such as: adipic acid polyester PN860, UN615, UN610), with a viscosity of 3000~5000 mpa.s, but the processing of disposable gloves needs to reduce The paste viscosity is 50~80 mpa.s, and the use of polymerized polymer plasticizers will cause the paste viscosity to be very high, requiring a large amount of dilution solvents, which not only increases the cost of gloves, but also causes environmental pollution due to the volatilization of these solvents into the atmosphere

Method used

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Examples

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preparation example Construction

[0024] The invention provides a kind of preparation method of PVC glove, comprises the following steps:

[0025] A) Stir and mix the polyester plasticizer, stabilizer, emulsifier, water and water-based PVC emulsion to obtain a mixed slurry; the polyester plasticizer includes polypropylene adipate and polyethylene glycol adipate at least one of esters;

[0026] B) vacuum defoaming the mixed slurry to obtain the mixed slurry after vacuum defoaming;

[0027] C) Immerse the hand mold in the coagulant solution, take it out and dry it, and then immerse it in the mixed slurry after vacuum degassing, take it out and dry it, bake it and plasticize it, and obtain PVC gloves.

[0028] In the present invention, the polyester plasticizer, stabilizer, emulsifier, water and water-based PVC emulsion are first stirred and mixed to obtain a mixed slurry; the polyester plasticizer includes polytrimethylene adipate and polyglycol adipate At least one of alcohol esters.

[0029] In some embodim...

Embodiment 1

[0060] First disperse 25 parts by weight of polytrimethylene adipate, 0.8 parts by weight of liquid calcium zinc stabilizer and 0.2 parts by weight of sodium dodecylbenzene sulfonate into an emulsion in 30 parts by weight of water, add 100 parts by weight of water-based PVC emulsion (solid content of 45%), stirred and mixed for 24 hours, vacuum defoamed, the obtained mixed slurry was placed in a rubber bucket for use, the hand model was cleaned, and immersed in a coagulant solution at a temperature of 60°C (including 8 parts by weight of soluble salt magnesium nitrate, 1.2 parts by weight of release agent and 80 parts by weight of water), take it out, bake it at 120°C for 3 minutes, and then immerse it in the mixed slurry after vacuum defoaming at a temperature of 20°C , take it out, dry at 120°C for 2 minutes, leach, bake at 210°C for 6 minutes, crimp, demould, impregnate PU emulsion, and bake at 120°C for 2 minutes to obtain food-grade oil-resistant PVC gloves.

[0061] Six...

Embodiment 2

[0066] First disperse 30 parts by weight of polytrimethylene adipate, 1 part by weight of liquid calcium zinc stabilizer and 0.4 part by weight of sodium dodecylbenzenesulfonate into an emulsion in 35 parts by weight of water, add 100 parts by weight of water-based PVC emulsion (solid content of 45%), stirred and mixed for 24 hours, vacuum defoamed, the obtained mixed slurry was placed in a rubber bucket for use, the hand model was cleaned, and immersed in a coagulant solution with a temperature of 65°C (including 10 parts by weight of soluble salt magnesium chloride, 1.3 parts by weight of release agent and 85 parts by weight of water), take it out, bake it at 120°C for 3 min, then dip it in the mixed slurry after vacuum defoaming at a temperature of 25°C, take it out , dried at 120°C for 2 minutes, leached, baked and plasticized at 210°C for 6 minutes, crimped, demolded, dipped in PU emulsion, and baked at 120°C for 1 minute to obtain food-grade oil-resistant PVC gloves.

[...

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Abstract

The invention relates to the technical field of plastic glove production, in particular to a PVC glove and a preparation method thereof. The preparation method comprises the following steps: A) stirring and mixing a polyester plasticizer, a stabilizer, an emulsifier, water and a water-based PVC emulsion to obtain mixed slurry, wherein the polyester plasticizer comprises at least one of poly (propylene glycol adipate) and poly (diethylene glycol adipate); B) performing vacuum defoaming on the mixed slurry to obtain mixed slurry subjected to vacuum defoaming; and C) dipping a hand mold in a coagulator solution, taking out and drying the hand mold, then dipping the hand mold in the vacuum-defoamed mixed slurry, taking out and drying the hand mold, and baking and plasticizing the hand mold to obtain the PVC gloves. According to the preparation method provided by the invention, the use of a diluting solvent and a viscosity reducer is avoided, the cost of the gloves is reduced, VOCs are not discharged in the production process of the gloves, the gloves are green and environment-friendly, meanwhile, the process is simple to operate and easy to industrially popularize on a large scale, and the prepared PVC gloves are relatively excellent in oil resistance.

Description

technical field [0001] The invention relates to the technical field of plastic glove production, in particular to a PVC glove and a preparation method thereof. Background technique [0002] Disposable PVC gloves are widely used in housework, electronics, chemical industry, aquatic industry, hospital, scientific research, food processing and other industries. In recent years, with the increasing awareness of consumer protection and the formulation of laws and regulations in various countries, the demand for food-grade PVC gloves is increasing. Ordinary disposable PVC gloves contain small molecule plasticizers, and the plasticizers will migrate to the food when they come into contact with oily food, which cannot meet the food regulations of some countries. Conventional food-grade PVC gloves need to use macromolecular high-viscosity polyester plasticizers (such as: adipic acid polyester PN860, UN615, UN610), with a viscosity of 3000~5000 mpa.s, but the processing of disposable...

Claims

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Application Information

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IPC IPC(8): A41D19/015C08L27/06C08L67/02B29C41/14B29C41/50B29C41/52
CPCA41D19/0058C08L27/06B29C41/14B29C41/50B29C41/52A41D2500/54C08L67/02
Inventor 刘洪明刘晓星于琳高边洺亢玄张中强
Owner 山东蓝帆新材料有限公司
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