CN110734584A

CN110734584A - latex glove preparation process for GMP workshop

Info

Publication number: CN110734584A
Application number: CN201810791934.XA
Authority: CN
Inventors: 罗红
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-18
Filing date: 2018-07-18
Publication date: 2020-01-31

Abstract

The invention relates to the technical field of preparation processes of rubber products, and provides latex gloves used in a GMP workshop for preparation, which comprises the steps of pretreatment of natural latex, copolymer mixing after the pretreatment, dipping molding, vulcanization, surface treatment by a cation powder-free treating agent and the like.

Description

latex glove preparation process for GMP workshop

Technical Field

The invention relates to the technical field of preparation processes of rubber products, in particular to a preparation process of latex gloves for a GMP workshop.

Background

GMP workshop generally comprises ten thousand grade clean workshops, hundred thousand grade clean workshops and thirty thousand grade clean workshops, wherein most of the production is performed in one hundred thousand grade or thirty thousand grade clean workshops, and part of reagents must be performed in ten thousand grade workshops, such as negative and positive reference substances.

In the environment of a clean production workshop, a person belongs to the largest pollution source, hair, skin and clothes have a large amount of dust and bacteria, and skin scraps pollute the clean workshop, so that technicians can enter the clean workshop after a whole set of clothes changing flow and a sterilizing flow after entering the clean workshop, wherein times of clean gloves are needed to be worn in the clean workshop, the technicians need to work in the workshop for more than 6 hours every day when entering the clean workshop, at present, the gloves used in most workshops are made of natural latex materials, but proteins causing human allergic reactions generally exist in natural latex, the prepared latex gloves contain volatile nitrosamine organic compounds, the gloves are sleeved on GMP workshops, the hand backs of the gloves can have allergic phenomena, the conventional GMP gloves are poor in coating raw materials , namely anionic acrylic resin or anionic resin, the surface of the gloves is easy to fall off, the cleaning gloves is easy to dry, the cleaning of the polyurethane latex layer is easy to be carried out, the cleaning gloves are easy to dry, and the dust removal effect is easily caused by the dry of the polyurethane latex system, and the gloves are easily caused by the dry of the ionic acrylic resin.

Disclosure of Invention

The invention provides kinds of kinds of latex gloves used in a GMP workshop and aims to solve the technical problems that the conventional latex gloves are allergic in reaction and have dust on the surfaces.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

A process for preparing latex gloves for GMP workshop, comprising the following steps:

(1) according to the weight parts, 0.5-1.0 part of potassium hydroxide, 1.0-1.5 parts of zinc oxide, 0.5-1.0 part of wool grease, 2-5 parts of dispersing agent, 1.0-1.5 parts of accelerator and 1.0-2.0 parts of vulcanizing agent are added into 200 parts of natural latex, then the natural latex is heated to 55-65 ℃, pre-vulcanized under heat preservation, and then 1.5-2.5 parts of anti-aging agent is added to obtain pre-treated latex which is placed for later use.

(2) Adding 20-35 parts by weight of isoprene grafted sericin copolymer, 2-5 parts by weight of viscosity reducer and 2-5 parts by weight of stabilizer into the pretreated emulsion obtained in the step (1) to obtain a mixed emulsion, heating to 65-75 ℃, and preserving heat for later use.

(3) Dipping a coagulant in the glove mold, after drying, dipping the mixed emulsion obtained in the step (2) in the glove mold, leaching and drying, then dipping a release agent, and demolding the semi-finished product.

(4) And (4) vulcanizing the semi-finished product obtained in the step (3) by using preheated water at the temperature of 85-95 ℃ for 2 hours, and then drying to obtain a primary finished product of the latex glove.

(5) And (4) carrying out surface treatment on the primary finished product of the latex gloves obtained in the step (4) by using a powder-free treating agent, and drying to obtain the finished latex gloves.

Preferably, the preheated water in the step (4) comprises the following components in percentage by mass: 3-10% of glycerol, 1-3% of gel, 0.5-2% of cellulose, 3-10% of silicon dioxide, 0.5-5% of ethylenediamine tetraacetic acid, 800.5-2% of tween, 1-3% of lauric acid, 1-3% of oleyl alcohol, 2-5% of lanolin and the balance of purified water.

Preferably, the powder-free treating agent in the step (5) is a mixed liquid formed by mixing 40-80 parts by weight of cationic water-based resin, 10-50 parts by weight of paraffin oil, 10-50 parts by weight of wax micropowder and 2-15 parts by weight of silicone oil.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the latex gloves vulcanized by the preheated water have low nitrous acid content, and meanwhile, the isoprene grafted sericin copolymer has the characteristics of antibiosis, antiphlogosis, antioxidation and corrosion resistance, so the latex gloves disclosed by the invention cannot cause an allergy phenomenon, can be worn for a long time for personnel in a clean production workshop, and are convenient and safe.

2. Through the gloves after the processing of the cation powder-free treating agent, the coating quality is good, the coating has strong binding force with the surface of latex gloves, the gloves are not easy to fall off, the gloves have good smoothness and adhesion resistance, the surface dust content is extremely low, workers in a clean workshop do not need to clean the gloves, the production operation can be directly carried out, the workers are helped to save time, and the production efficiency is improved.

Detailed Description

All features disclosed in this specification may be combined in any combination, except features and/or steps that are mutually exclusive.

Example 1

(4) And (4) vulcanizing the semi-finished product obtained in the step (3) by using preheated water at the temperature of 85-95 ℃ for 2 hours, and then drying to obtain a primary finished product of the latex glove. The preheating water comprises the following components in percentage by mass: 3-10% of glycerol, 1-3% of gel, 0.5-2% of cellulose, 3-10% of silicon dioxide, 0.5-5% of ethylenediamine tetraacetic acid, 800.5-2% of tween, 1-3% of lauric acid, 1-3% of oleyl alcohol, 2-5% of lanolin and the balance of purified water. The latex gloves vulcanized by the preheated water have low nitrous acid content, and meanwhile, the isoprene grafted sericin copolymer has the characteristics of antibiosis, antiphlogosis, antioxidation and corrosion resistance, so the latex gloves disclosed by the invention cannot cause an allergy phenomenon, can be worn for a long time for personnel in a clean production workshop, and are convenient and safe.

(5) And (4) carrying out surface treatment on the primary finished product of the latex gloves obtained in the step (4) by using a powder-free treating agent, and drying to obtain the finished latex gloves. The powder-free treating agent is a mixed liquid formed by mixing 40-80 parts by weight of cationic water-based resin, 10-50 parts by weight of paraffin oil, 10-50 parts by weight of wax micro powder and 2-15 parts by weight of silicone oil. Through the gloves after the processing of the cation powder-free treating agent, the coating quality is good, the coating has strong binding force with the surface of latex gloves, the gloves are not easy to fall off, the gloves have good smoothness and adhesion resistance, the surface dust content is extremely low, workers in a clean workshop do not need to clean the gloves, the production operation can be directly carried out, the workers are helped to save time, and the production efficiency is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1, A process for preparing latex gloves for GMP workshop, comprising the following steps:

(1) adding 0.5-1.0 part of potassium hydroxide, 1.0-1.5 parts of zinc oxide, 0.5-1.0 part of wool fat, 2-5 parts of dispersing agent, 1.0-1.5 parts of accelerator and 1.0-2.0 parts of vulcanizing agent into 200 parts of natural latex by weight, heating to 55-65 ℃, preserving heat and pre-vulcanizing, adding 1.5-2.5 parts of anti-aging agent, obtaining a pre-treated emulsion, and standing for later use;

(2) adding 20-35 parts by weight of isoprene grafted sericin copolymer, 2-5 parts by weight of viscosity reducer and 2-5 parts by weight of stabilizer into the pretreated emulsion obtained in the step (1) to obtain mixed emulsion, heating to 65-75 ℃, and preserving heat for later use;

(3) dipping a coagulant into the glove mold, after drying, dipping the mixed emulsion obtained in the step (2) into the glove mold, leaching and drying, then dipping a separant, and demolding the semi-finished product;

(4) vulcanizing the semi-finished product obtained in the step (3) by using preheated water at the temperature of 85-95 ℃ for 2 hours, and then drying to obtain a primary finished product of the latex glove;

2. The latex glove preparation processes for GMP workshops according to claim 1, wherein the preheated water in step (4) comprises, by mass, 3-10% of glycerin, 1-3% of gelatin, 0.5-2% of cellulose, 3-10% of silica, 0.5-5% of ethylenediamine tetraacetic acid, 800.5-2% of tween, 1-3% of lauric acid, 1-3% of oleyl alcohol, 2-5% of lanolin, and the balance of purified water.

3. The process for preparing latex gloves for GMP workshop according to claim 1, wherein the powder-free treatment agent in step (5) is a mixed liquid composed of 40-80 parts by weight of cationic water-based resin, 10-50 parts by weight of paraffin oil, 10-50 parts by weight of wax micropowder and 2-15 parts by weight of silicone oil.