A kind of dot-like gluing process and its products

Abstract

The invention discloses a point-like gluing process. The point-like gluing process is characterized by comprising the steps that 1, a release film is coated with glue; 2, after the glued surface of the glued release film is overlapped with a piece of perforated release paper or release film, and a base film is then overlapped on the release paper or release film, so that a three-layer overlapped material is formed; 3, the three-layer overlapped material is tightly pressed through a certain pressure applied by an upper pressing roller and a lower pressing roller, and the glue on the release film is transferred to the base film through holes of the release paper or release film; and 4, the base film of the three-layer overlapped material is stripped, so that the point-like glued base film is obtained. A point-like glued product manufactured through the method comprises the base film and a plurality of point-like glue bodies regularly or irregularly distributed on the base film or comprises the base film and a plurality of sheet glue bodies on the base film, and holes or grooves are regularly or irregularly arranged in the sheet glue bodies. According to the point-like gluing process, the glued release film, the perforated release paper or release film and the base film are overlapped in a three-layer mode, and the glue is transferred to the base film through the holes, so that point-like gluing of products is achieved, and the point-like gluing process is simple, convenient and fast.

Description

technical field [0001] The invention relates to the gluing of medical dressings, in particular to a dot-like gluing process and its products. Background technique [0002] At present, most medical dressing products, because of the high weight of glue and full coating, form a completely sealed environment after being applied to the wound, which is airtight, prevents the normal breathing of the skin, and slows down the growth rate of skin tissue. It is necessary to increase the water vapor transmission rate of the film (or surface layer of other materials) on the surface of the dressing and the film after coating to ensure that the skin can breathe normally. [0003] To improve the air permeability of the applied product, it is necessary to improve the water vapor transmission rate of the surface film, which is generally achieved by controlling the amount of glue applied to the film or the type of adhesive. At present, there are 5 common methods, all of which have deficiencie...

AI Technical Summary

Problems solved by technology

At present, there are 5 common methods, all of which have deficiencies. First, the material is covered with medical glue, which reduces the weight of the glue, and the requirements for equipment precision are particularly high. At present, there are basically no domestic manufacturers that can achieve it; second, the material. Dot-shaped coating of medical glue, basically no domestic manufacturer realizes it; third, the material is coated with medical glue in strips, and the appearance is not particularly good-looking; fourth, medical glue with hydrophilic properties is used to improve the water vapor transmission rate. There is no domestic supplier of this kind of medical glue; Fifth, the air permeability is improved by punching micro-holes on the surface film, but this method makes the film not waterproof and easy to fall off

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