阅读说明：本技术 一种用于gmp车间的乳胶手套制备工艺 (latex glove preparation process for GMP workshop ) 是由 罗红 于 2018-07-18 设计创作，主要内容包括：本发明涉及橡胶制品的制备工艺技术领域,提供了一种用于GMP车间的乳胶手套制备工艺,包括对天然胶乳的预处理、预处理后进行共聚物混合、浸塑成形、硫化处理和阳离子无粉处理剂进行表面处理等步骤。经过预热水进行硫化后的乳胶手套,亚硝酸含量低,同时异戊二烯接枝丝胶共聚物具有抗菌、消炎、抗氧化和耐腐蚀的特征,所以本发明所述的乳胶手套不会导致过敏现象,对于洁净生产车间的人员来说,可以长时间穿戴,方便安全。通过阳离子无粉处理剂处理后的手套,涂层质量好,与乳胶手套表面结合力极强,不易脱落,并有良好的滑爽性和抗粘连性,表面粉尘含量极低,洁净车间的工作人员无需对手套进行清洗,可直接进行生产操作,帮助工作人员节约时间,提高生产效率。(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.)

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;

(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.

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.

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.