TW201315399A - Waterproof water-vapor permeable cover and manufacturing method thereof - Google Patents

Abstract

This invention relates to a waterproof water-vapor permeable cover, comprising at least a plastic film which is made of material containing polyurethane of 10 to 70% by volume, silica of 0.001 to 5% by volume, and porous silicone of 0.001 to 5% by volume. In addition, this invention also relates to a method for manufacturing the waterproof water-vapor permeable cover which is made in a simple and pollution-free manner and provided with waterproof, water-vapor permeable and gas-permeable capabilities.

Description

Waterproof and moisture permeable sleeve and manufacturing method thereof

The invention relates to a waterproof and moisture-permeable sleeve, in particular to a waterproof and moisture-permeable sleeve which is made of a polyurethane-containing rubber compound and has the functions of waterproofing, moisture permeability and ventilation.

In general, the work of catering, medical or high-tech industries requires long-term wear of safety gloves, shoe covers or hoods to avoid direct contact with food, medical equipment or semiconductor materials, and reduce the production efficiency of various industries. Or quality yield.

In order to improve the comfort and convenience of wearing a safety cover, it is very important to make a protective cover that is waterproof, moisture permeable and breathable. In the prior art, most of the general waterproof and breathable sleeves are composed of two different materials, such as woven fabrics and polymer materials. Among them, the woven fabric can provide a proper ventilation effect, and the plastic resin polymer material can be coated on the periphery of the woven fabric to provide a proper waterproof effect, and the combination of the above two fabric materials can achieve both waterproof and breathable functions.

However, although the waterproof and breathable glove can have the above several functions, the polymer material is not easily attached to the surface of the woven fabric, but the inconvenience in use is increased, and the user is not required to work after wearing the glove. The activities, indirectly, affect the effectiveness of the work.

In view of the problems faced by the foregoing, the present invention seeks to develop another waterproof and moisture permeable sleeve which has both waterproof, moisture permeable and venting functions and a manufacturing method thereof, which can be made into various shapes by molding with various shapes of molds. Used as a glove, shoe cover or headgear to enhance the convenience of work in various industries.

The main object of the present invention is to provide a method for manufacturing a waterproof and moisture permeable sleeve, which is to produce a glove, a shoe cover or a head cover which has both waterproof and moisture permeable functions by a low pollution, low cost and simple process.

In order to achieve the above object, the present invention provides a method for manufacturing a waterproof moisture permeable sleeve comprising: (A) providing a mold having a predetermined shape; and (B) immersing the mold in a polyurethane (PU). a rubber film for forming a first film on the surface of the mold; (C) drying the first film; and (D) peeling the first film from the mold to obtain a pair of Waterproof and moisture permeable sleeve of predetermined shape.

Preferably, between step (C) and step (D), step (B) and step (C) are repeated to form a second film.

Preferably, before the step (B), the method further comprises a step (A') of immersing the mold in a release agent solution to assist the subsequent step (D) of the stripping step, thereby reducing the maintenance of the maintenance mold. Cost and increase the production efficiency of the waterproof and moisture permeable sleeve.

Among them, polyurethane (PU) is a polymer material containing a urethane in a main chain, which is a polymer material formed by polymerization of a polyol and a diisocyanate. Polyurethane has a variety of acid-base solutions and organic solutions, so it can be widely used in the production of various protective materials for daily use.

In the step (B), the polyurethane-containing compound of the present invention preferably comprises silica, porous polysilicon, a solvent, or a combination thereof. Among them, the selected solvents are: dimethyl formaldehyde (DMF), toluene, acetone, methyl ethyl ketone (MEK), ethyl acetate (EAC), Butyl acetate (BAC), water, or a combination thereof. The material of the mold can be ceramic or various materials such as aluminum metal.

In addition, in the manufacturing method of the waterproof moisture permeable sleeve of the present invention, the mold used preferably includes a plurality of protrusions formed by protruding outwardly from the surface of the mold, and the diameter of each protrusion is Between 0 and 100 μm.

Another object of the present invention is to provide a waterproof and moisture permeable sleeve which is waterproof, moisture permeable, breathable or anti-allergic, and is widely used in catering, medical or high-tech industries.

In order to achieve the above object, the present invention provides a waterproof moisture permeable sleeve comprising at least one film body, wherein the film body contains: 10 to 70 volume percent (vol%) of polyurethane; 0.001 to 5 volume percent (vol%) Silica; and 0.001 to 5 volume percent (vol%) of porous polysilicon.

Wherein, the waterproof and moisture permeable sleeve is obtained by the above-mentioned manufacturing method. Preferably, the waterproof and moisture-permeable sleeve can be a waterproof and moisture-permeable glove, a waterproof and moisture-permeable shoe cover or a waterproof and moisture-permeable head cover. When a mold is used to include a palm portion and a five-finger portion protruding outward, a waterproof and moisture-permeable glove can be made; when a mold is used to include a foot portion, a waterproof and moisture-permeable shoe cover can be made, or a When the mold comprises a sole portion and a five-footed finger protruding outward, the waterproof and moisture-permeable shoe cover can be made; when a mold is used to include a head shape, a waterproof and moisture-permeable head cover can be formed. Accordingly, the waterproof and moisture-permeable sleeve of the present invention can be made into various shapes according to molds of predetermined shapes for use as gloves, shoe covers or head covers.

Preferably, the cerium oxide has a particle size of 1 to 50 micrometers (μm) to increase adhesion, so that the waterproof moisture permeable sleeve can be used as a glove or a shoe cover. .

Accordingly, the present invention provides a method for manufacturing a waterproof and moisture-permeable sleeve, which can not only produce a waterproof and moisture-permeable sleeve having functions of waterproofing, moisture permeability and ventilation, but also has the advantages of anti-allergic, environmental protection, comfortable wearing and convenience, and the like. In order to meet the needs of the use of experimental or catering work and medical or high-tech industries.

In the following, the embodiments of the present invention will be described by way of specific examples, and those skilled in the art can readily understand the advantages and effects of the present invention, and make various modifications without departing from the spirit of the present invention. And changes to implement or apply the content of the present invention.

real Example 1 - Preparation of waterproof and breathable gloves

First, an aluminum metal mold that is clean and contains the shape of the palm and the shape of the finger that protrudes therefrom is provided. Wherein, the mold can be provided with a plurality of protrusions at the corresponding palms, each of the protrusions having a diameter of about 0 to 100 micrometers (μm).

Next, the mold having a predetermined shape is immersed in a polyurethane-containing rubber to form a first film on the surface of the mold. Wherein, the polyurethane compound contains 35 vol% of polyurethane, 0.05 vol% of cerium oxide, 0.05 vol% of porous polyfluorene oxide and 64.9 vol% of dimethylformamide, and the particle size of cerium oxide. The size is about 1 to 50 micrometers (μm).

Thereafter, the soaked mold is taken out, and the mold having the predetermined shape and the first film are dried at a temperature of 50 to 160 °C.

Finally, after the mold and the first film are dried, the first film formed is peeled off from the mold to obtain a waterproof and moisture permeable glove.

Accordingly, the waterproof and moisture permeable glove obtained comprises a film body having a shape corresponding to the shape of the aforementioned aluminum metal mold. The material of the film body is composed of 50 vol% of polyurethane; 5 vol% of silica; and 5 vol% of porous polysilicon. Wherein, the palm of the waterproof and moisture permeable glove comprises a plurality of protrusions having a diameter of about 0 to 100 μm.

Example 2 - Preparation of a waterproof and moisture-permeable shoe cover

First, provide a clean ceramic mold that contains the shape of the sole of the foot. Wherein, the mold may be provided with a plurality of protrusions at both ends of the corresponding sole, each protrusion having a diameter of about 0 to 100 μm.

Thereafter, after the ceramic mold is dried, it is continuously immersed in a release agent. Among them, the release agent can be selected from various aqueous release agents or oily release agents.

Next, the mold having a specific shape is immersed in a polyurethane-containing compound to form a first film on the surface of the mold. Wherein, the polyurethane compound contains 30 vol% of polyurethane, 0.05 vol% of cerium oxide, 0.05 vol% of porous polyfluorene oxide, and 69.9 vol% of dimethylformamide. Thereafter, the soaked mold is taken out, and the mold having the predetermined shape and the first film are dried at a temperature of 50 to 160 °C.

Then, the ceramic mold is immersed in another polyurethane-containing rubber to form a second film on the surface of the mold. Wherein, the polyurethane compound contains 35 vol% of polyurethane, 0.05 vol% of cerium oxide, 0.05 vol% of porous poly argon and 64.9 vol% of dimethylformamide. Thereafter, the soaked mold was taken out, and the second film was dried at a temperature of 50 to 160 ° C repeatedly.

Finally, after the mold and the second film are dried, the formed second film is peeled off from the mold to obtain a waterproof and moisture-permeable shoe cover.

Accordingly, the waterproof and moisture-permeable shoe cover comprises a film body, the film body comprises a first film and a second film, and the film body has a shape corresponding to the shape of the ceramic mold. . The material of the first film is 70 vol% polyurethane, 5 vol% silica and 5 vol% porous polysilicon; and the second film is 50 vol%. Polyurethane, 5 vol% silica and 5 vol% porous polysilicon. Wherein, the two ends of the sole of the waterproof and moisture-permeable shoe cover also include a plurality of protrusions having a diameter of about 0 to 100 μm to increase the roughness of the waterproof and moisture-permeable shoe cover.

In summary, the present invention utilizes a polyurethane-containing rubber compound of a specific content ratio to produce a waterproof, moisture permeable, and breathable adhesive film, which can utilize a rubber compound in a specific shape in a simple and non-contaminating process step. At least one film is formed on the mold to prepare various types of waterproof and moisture-permeable sleeves.

Claims (10)

A method for manufacturing a waterproof and moisture permeable sleeve comprising: (A) providing a mold having a predetermined shape; and (B) immersing the mold in a polyurethane-containing rubber compound for Forming a first adhesive film on the surface of the mold; (C) drying the first adhesive film; and (D) peeling the first adhesive film from the mold to obtain a waterproof moisture-permeable sleeve corresponding to a predetermined shape. The production method according to claim 1, wherein before the step (B), the method further comprises a step (A') of immersing the mold in a release agent solution. The manufacturing method according to claim 1 or 2, wherein between step (C) and step (D), step (B) and step (C) are repeated to form a second glue. membrane. The method of claim 1, wherein the polyurethane-containing compound comprises silica, porous polysilicon, a solvent, or a combination thereof, and the solvent is two Dimethyl formaldehyde (DMF), toluene, acetone, methyl ethyl ketone (MEK), ethyl acetate (EAC), butyl acetate (BAC) ), water, or a combination thereof. The manufacturing method according to claim 1, wherein the material of the mold is ceramic or aluminum metal. The manufacturing method of claim 1, wherein the mold comprises a plurality of protrusions formed by projecting outwardly from a surface of the mold, and each protrusion has a diameter of 0 Up to 100 μm. A waterproof moisture permeable sleeve comprising at least one film body, wherein the material of the film body comprises: 10 to 70 volume percent (vol%) of polyurethane; 0.001 to 5 volume percent (vol%) of cerium oxide ( Silica); and 0.001 to 5 volume percent (vol%) of porous polysilicon. The water-permeable and moisture-permeable casing according to claim 7, wherein the waterproof moisture-permeable casing is produced by the production method according to any one of the first to sixth aspects of the patent application. The waterproof and moisture-permeable sleeve according to claim 7, wherein the waterproof and moisture-permeable sleeve is a waterproof and moisture-permeable glove, a waterproof and moisture-permeable shoe cover or a waterproof and moisture-permeable head cover. The waterproof moisture-permeable sleeve according to claim 7, wherein the cerium oxide has a particle size of 1 to 50 μm.