Pinhole-proof aqueous coating agent for powder-free PVC gloves and preparation method thereof

An anti-pinhole and finishing agent technology, applied in gloves, clothing, applications, etc., can solve the problems of potential contamination of the object being operated, potential threats caused by users, and reduced production efficiency, so as to avoid the reduction of production efficiency and achieve obvious anti-adhesion. Effect, good anti-pinhole effect

Inactive Publication Date: 2010-06-16
BEIJING COMENS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gloves with pinholes cannot form a good isolation from the outside. If there are pinholes in the gloves used by the user, it may cause potential threats to the user or cause potential contamination to the operated object, thus limiting its use in medical and non-medical applications. Dust, high-precision applications
The pinhole problem is an extremely common problem in the production of disposable film PVC gloves, but there has been no effective way to control it
Due to the use of multiple dip coatings, this method will reduce production efficiency, and it is also necessary to modify the existing production process equipment for disposable PVC gloves, which is not only time-consuming, but also a waste of financial resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This example proposes a water-based finishing agent for PVC powder-free gloves, which can not only prevent the inner surface of PVC gloves from sticking, but also effectively prevent the generation of pinholes on the gloves, so that the PVC gloves can meet the requirement that the pinhole rate is less than 4%. , the finishing agent is specifically composed of the following components by weight percentage:

[0062] Waterborne polyacrylic resin 10%~40%

[0063] Waterborne polyurethane resin 40%~80%

[0064] Defoamer 0.1%~0.5%

[0065] Wetting and leveling agent 0.05%~3%

[0066] Anti-stick and slip agent 5%~15%

[0067] pH adjuster 0.3%~1.2%

[0068] Thickener 0.1%~2%;

[0069] During specific preparation, at a temperature of 20-40°C, fully mix the water-based polyacrylic acid resin and water-based polyurethane resin in the above formula, and add defoamer, wetting and leveling agent, anti-sticking and slipping agent, It is a pH adjuster and a thickener, and it can b...

Embodiment 2

[0094] This embodiment provides a water-based finishing agent for PVC powder-free gloves, the specific preparation method is as follows:

[0095] Get each raw material by following weight:

[0096] Water-based polyacrylic resin 30g

[0097] Water-based polyurethane resin 60g

[0098] BYK-028 (defoamer) 0.3g

[0099] CoatOSil 1211 (wetting and leveling agent) 1g

[0100] LV-461 (anti-stick and slip agent) 7.2g

[0101] 2-Amino-2-methyl-1-propanol (pH regulator) 0.5g

[0102] ASE60 (thickener) 1g;

[0103] The preparation of the finishing agent is as follows: Add 30 g of water-based polyacrylic resin and 60 g of water-based polyurethane resin into the flask at room temperature, stir at a low speed for 30 minutes, and then add 0.3 g of BYK-028 (manufacturer BYK), 1 g of CoatOSil 1211 (manufacturer Momentive) , 7.2g LV-461 (manufacturer DEUCHEM), 0.5g 2-amino-2-methyl-1-propanol, 1g ASE60 (manufacturer ROHM & HAAS), after stirring evenly, the material used in the embodiment ...

Embodiment 3

[0108] This embodiment provides a water-based finishing agent for PVC powder-free gloves, the specific preparation method is as follows:

[0109] Get each raw material component by following weight:

[0110] Water-based polyacrylic resin 15g

[0111] Water-based polyurethane resin 70g

[0112] 815N (defoamer) 0.3g

[0113] CoatOSil 77 (wetting and leveling agent) 1.2g

[0114] ML-160 (anti-adhesive slip agent) 12g

[0115] 2-Amino-2-methyl-1-propanol (pH regulator) 0.5g

[0116] ASE60 (thickener) 1g

[0117] The preparation method of this finishing agent is as follows:

[0118] Add 15g of water-based polyacrylic resin and 70g of water-based polyurethane resin into the flask at room temperature, stir at a low speed for 30min, then add 0.3g 815N (manufacturer TEGO), 1.2g CoatOSil 77 (manufacturer Momentive), 12g ML-160 (manufacturer MICHELMAN), 0.5g 2-amino-2-methyl-1-propanol, 1g ASE60 (manufacturer ROHM&HAAS), and discharge after stirring evenly to obtain the finishing ...

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Abstract

The invention discloses a pinhole-proof aqueous coating agent for powder-free PVC gloves, which belongs to the field of chemical raw materials. The coating agent consists of the following components in percentage by weight: 10 to 40 percent of aqueous polyacrylic resin, 40 to 80 percent of aqueous polyurethane resin, 0.1 to 0.5 percent of defoaming agent, 0.05 to 3 percent of wetting flatting agent, 5 to 15 percent of anti-sticking slipping agent, 0.3 to 1.2 percent of pH adjustor and 0.1 to 2 percent of thickening agent. When the coating agent is used for producing the PVC gloves, the aqueous polyacrylic resin in the coating agent can be densified to form a film after the coating agent is coated on a base material of the PVC gloves so as to form a thicker and more compact film layer compared with the traditional coating agent, endow the coating with obvious anti-sticking effect and good water resistance and further provide better pinhole-proof effect; therefore, the pinhole rate of the produced PVC gloves meets the requirement of less than 4 percent.

Description

technical field [0001] The invention relates to the field of chemical raw materials, in particular to a pinhole-proof water-based finishing agent for powder-free PVC gloves and a preparation method thereof. Background technique [0002] Disposable film PVC gloves are made by impregnating the glove mold with PVC plastisol solution and baking at about 210°C, so that the polyvinyl chloride paste resin particles in the PVC plastisol are fused into a film to form film gloves. If the PVC plastisol contains tiny air bubbles that are difficult to remove or paste resin particles that make the film formation process poor, pinholes will be left on the glove. Gloves with pinholes cannot form a good isolation from the outside. If there are pinholes in the gloves used by the user, it may cause potential threats to the user or cause potential contamination to the operated object, thus limiting its use in medical and non-medical applications. Dust, high-precision applications. The pinhole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04A41D19/00
Inventor 贾海亭邓煜东沈峰
Owner BEIJING COMENS NEW MATERIALS
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