TWM506713U - Easily-peelable composite layer structure with property of anti-wetness and water-resistance - Google Patents

Description

Easy-to-tear composite layer structure with moisture permeability and water resistance

The present invention relates to a water-resistant, easily tearable composite layer structure, and more particularly to a composite layer structure suitable for packaging, bundling, cementing, attaching or enclosing articles.

Take the common common tape as an example, although there are many kinds of easy-to-tear tapes that are free of knives in the prior art, such as the Republic of China Patent Announcement No. 225283, "saving, safety (cutting and cutting) packaging, sealing tape" and China In the Republic of China Patent Bulletin No. 379651, "Energy-saving, safe (cutting the blade-free) packaging and sealing tapes are added"; however, the above two patent documents are all cut into strips or rounds by the middle of the glue width. A mark or slit allows the user to cut the tape along any of the above-mentioned marks or incisions to achieve a tear-resistant effect.

However, in the above two patent documents, since the direction of the incision or the position of the incision is fixed, the direction or size of the tearing is fixed, and the tearing can be arbitrarily adjusted regardless of the direction or size depending on the needs of the user. Moreover, the above two patent documents cannot achieve the effects of moisture permeability and water resistance.

In addition, U.S. Patent No. 8,247,057 B2, "Cover tape and method for manufacture" also discloses a tear-off tape which mainly has a tearable portion extending in the longitudinal direction of the tape, which utilizes a laser. , punching or cutting The cut is cut, and the cut can constitute a tear-off property. However, similarly, the tear line will follow the tearable portion, so the direction and size of the tear line are fixed, and no technical means for achieving moisture permeability and water resistance are found.

Furthermore, as for the breathable type of tape, such as the Republic of China Patent Publication No. 201026289 "Medical breathable tape and its preparation method", the breathable base layer is made of non-woven fabric, cotton cloth or nylon cloth with perforation, so it should be breathable and transparent. The effect of wetness is unquestionable, but the base layer of the cloth is not resistant to water before further processing, and it is often affected by some water-repellent treatment. In addition, the use of cloth as a base layer is generally difficult to tear, and must rely on other tools.

In addition, a gas permeable, liquid impermeable barrier structures and products made by a gas permeable, liquid impermeable barrier structure and products made by the related art, such as the European Patent No. EP 0 900 571 B1. "")", which is mainly related to sanitary protection products, such as a sanitary napkin, panty liner, incontinence products, diapers, surgical dressings and bedding pads. Among them, the above patent document mainly discloses that a non-woven fabric, a woven fabric, a perforated film, and/or a non-reticulated foam is used as a porous substrate, and particles are fused to at least one side of the porous substrate, thereby forming a resistance to the body. Fluids (such as urine, sweat, and menstrual fluid) pass through the barrier while allowing air and water vapor to pass freely. Accordingly, similarly, this prior art should not achieve the easy tearing effect, let alone any tearing that can be non-directional and without size limitation.

According to this, a non-directional can be arbitrarily torn, and at the same time The easy-to-tear composite layer structure with moisture permeability and water resistance, and easy to be stripped is an urgent need of the industry and the public.

The main purpose of this creation is to provide a tear-permeable composite layer structure with moisture permeability and water resistance, which can achieve moisture permeability and water resistance, and can be easily torn and cut off without direction according to the needs of users.

In order to achieve the above object, the present invention provides a moisture-permeable and water-resistant easy-to-tear composite layer structure, which mainly comprises at least three substrate layers and at least two surface treatment layers. Wherein at least two surface treatment layers are respectively located between the substrate layers of at least three layers, and at least two of the at least two substrate layers respectively comprise a plurality of fine through holes, and at least two layers of the surface treatment layer The surface treatment is performed by applying at least one selected from the group consisting of: discharge, printing, release, and sizing.

Accordingly, the present invention can realize the tearing of the substrate layer which is not tearable or difficult to tear by providing a plurality of fine through holes on the substrate layer, and also makes the substrate layer have both moisture permeability and water resistance. In addition, the present invention uses at least two layers of the surface treatment layer, so that the substrate layer can be treated with different surface treatment according to actual needs, and has different characteristics, for example, the surface of the substrate layer can be roughened by discharge treatment. The printing process can form a pattern and/or a character on the substrate layer, the release process can easily peel off the substrate layer, and the sizing treatment can make the substrate layer have adhesive force. Of course, this creation is not limited to a single surface treatment, and can be applied to various types of surface treatments on the substrate layer, while having various characteristics.

Preferably, at least two layers of the surface treatment layer of the moisture-permeable and water-resistant easy-to-tear composite layer structure can be made of at least three layers of the substrate. At least one of the two surfaces adjacent to each other in the layer is subjected to a surface treatment. In other words, the present invention can directly apply a surface treatment to the surface of the substrate layer to obtain a surface treatment layer, such as discharge treatment; however, the present invention is not limited thereto, and a surface treatment layer may be additionally formed on the substrate layer. The surface imparts different properties such as release, printing, and sizing.

Furthermore, at least one of the substrate layers of the at least three layers of the moisture-permeable and water-resistant easy-to-tear composite layer structure may have a different width from the other, which is advantageous for peeling or rolling and is not easy to loosen. The substrate layer of at least three layers may include a first substrate layer, a second substrate layer and a third substrate layer; and the widths of the second substrate layer and the third substrate layer may be the same, and The width of the first substrate layer may be greater than the second substrate layer and the third substrate layer.

In addition, the first substrate layer and the third substrate layer of the present invention having a moisture-permeable and water-resistant easily tearable composite layer structure may respectively include a plurality of fine through holes, and each of the fine through holes may have a pore diameter of 0.004 μm to 100 μm, and the distribution density of the plurality of fine through holes may be more than 10,000 per square inch. Accordingly, the present invention can smoothly discharge water vapor and prevent water molecules from being immersed by the setting of the fine through-hole diameter; in addition, the fine through-holes provided through the substrate layer and the distribution density of the fine through-holes can be set. The substrate layer is easily and easily detached without directionality, and the moisture permeability is increased.

Furthermore, at least two layers of the surface treatment layer of the present invention having a moisture-permeable and water-resistant tear-to-peel composite layer structure may include a solid adhesive layer having a thickness of 15 μm on the surface of the third substrate layer; The substrate layer may have a moisture permeability of from 500 to 1500 g/m ² . Between days. Accordingly, the present invention can provide a third substrate layer adhesion by a solid glue layer to facilitate adhesion.

In addition, the creation is easy to tear composite layer with moisture permeability and water resistance. The material of the first substrate layer of the structure may be a polymer film or a metal foil, the material of the second substrate layer may be paper, cloth or foam, and the material of the third substrate layer may be a polymer film; The first substrate layer and the third substrate layer are hard-to-tear or non-tearable materials, and are perforated to have a tear-free property without direction limitation.

[this creation]

1‧‧‧ Tape

2‧‧‧First substrate layer

21, 41‧‧‧Micro-through holes

3‧‧‧Second substrate layer

4‧‧‧ Third substrate layer

5‧‧‧First surface treatment layer

6‧‧‧Second surface treatment layer

7‧‧‧ Third surface treatment layer

8‧‧‧Tattoo stickers

Figure 1 is a perspective view of a first embodiment of the present creation.

Figure 2 is a cross-sectional view of the A-A line segment of the first embodiment of the present invention.

3A to 3D are cross-sectional views showing the manner of use of the first embodiment of the present creation.

Figure 4 is a cross-sectional view showing a second embodiment of the present creation.

Fig. 5 is a schematic view showing the state of use of the second embodiment of the present invention.

Before the present invention is described in detail in the present embodiment, it is to be noted that in the following description, similar elements will be denoted by the same reference numerals.

1 and FIG. 2, FIG. 1 is a perspective view of a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the A-A line segment of the first embodiment of the present invention. The first embodiment described below is described by taking the tape 1 as an example, which can be applied to requirements such as moisture permeability and water resistance, for example, attached to a human body or other animals and plants, such as dressing wounds and agricultural product packaging, etc. . However, this creation should not be limited to this. Any other application that has moisture permeability and water resistance requirements can be applied.

As shown in the figure, the tape 1 of the present embodiment substantially comprises a three-layer substrate layer and a two-layer surface treatment layer, which are sequentially the first substrate layer 2 and the first surface treatment layer from top to bottom. 5. Second substrate layer 3, second surface treatment layer 6, and third substrate layer 4. The material of the first substrate layer 2 and the third substrate layer 4 is a polymer film, such as a nylon film, a polyvinyl alcohol film (PVA film), a polyester film. (polyester film), polyethylene terephthalate film (PET film), polypropylene film (PP film), polyethylene film (PE film), polycarbonate film (polycarbonate film) , PC film), polystyrene film (PS film), polysulfone film, poly film (PI film), and polyvinyl chloride film (PVC film) The material of the second substrate layer 3 is made of paper, and the paper has the same tearing property, and has good isolation and support effects for easy identification and roll forming.

Furthermore, in the present embodiment, the first surface treatment layer 5 and the second surface treatment layer 6 are sized, that is, coated with an adhesive layer such as PU glue, acrylic glue, or other equivalent. Adhesives, etc., form a solid glue layer that provides adhesion. However, the surface treatment proposed in this creation should not be limited to the gluing treatment. Other surface treatments may also be applied. For example, the discharge treatment is performed before the gluing treatment to make the surface of the substrate layer rougher and more convenient to adhere. , sizing; or release treatment on the surface of the substrate layer to facilitate peeling.

In addition, the first substrate layer 2 and the third substrate layer 4 of the embodiment respectively include a plurality of fine through holes 21 and 41, which are permeable to the punching and punching process. Or a laser drilling process is formed, thereby converting the original non-tearable or difficult-to-tear substrate layer into easy tearing, and the aperture diameter is between 0.004 μm and 100 μm, and the distribution density of the fine through holes 21, 41 is greater than Ten thousand square miles. Among them, since the water vapor generally has a particle diameter of about 0.004 μm and the rainwater has a diameter of about 100 μm, the moisture or general water vapor emitted by the human body can be dissipated through the fine through holes 21 and 41 on the film, and the aperture is set on the other hand. It is smaller than the diameter of the rainwater, so generally water cannot penetrate directly. In addition, in this embodiment, the distribution density of the fine through holes 21 and 41 is set to be relatively dense, so that in addition to excellent moisture permeability, the user is also convenient to tear, and has no directionality, size, and shape limitation.

Moreover, as shown in FIG. 2, in the present embodiment, the second substrate layer 3 and the third substrate layer 4 have the same width and a width of 4 cm; and the width of the first substrate layer 2 is greater than the second. In the base material layer 3 and the third base material layer 4, the width of the first base material layer 2 is 5 cm, and in addition to the characteristics such as easy peeling and looseness of the roll, in the use mode of the embodiment, Convenience is provided and detailed later.

In addition, the thickness of the solid adhesive layer of the first surface treatment layer 5 and the second surface treatment layer 6 will affect the moisture permeability of the first substrate layer 2 and the third substrate layer 4; in other words, the plurality of fine through holes 21, 41 The pore size can be adjusted by the thickness of the solid glue layer, which in turn affects the moisture permeability. For example, in the present embodiment, the third substrate layer 4 has a moisture permeability of 1500 to 3000 g/m ^{2 before it is applied} . Day; after applying a solid glue with a thickness of 15 μm on one side, the moisture permeability is still 500 to 1500 g/m ² . Day. Here, the moisture permeability characteristics of the present examples were measured in accordance with Japanese Industrial Standards (JIS) L 1099A1.

Referring to FIG. 3A to FIG. 3D, FIG. 3A to FIG. 3D are cross-sectional views showing the manner of use of the first embodiment of the present invention. As shown in FIG. 3A, first, the first substrate layer 2 is first peeled off, and the first surface treatment layer 5 on the lower surface of the first substrate layer 2 is also a solid glue layer. Next, as shown in FIG. 3B, the first substrate layer 2 is reversely attached to the lower surface of the third substrate layer 4, that is, the first surface treatment layer 5 is adhered to the third substrate layer 4, wherein Since the width of the first substrate layer 2 is large, the first surface treatment layer 5 does not need to take time to align the third substrate layer 4, and can be easily adhered to the third substrate layer 4. Furthermore, as shown in FIG. 3C, the second substrate layer 3 is removed, and the second surface treatment layer 6 of the third substrate layer 4 is adhered to the area to be attached (not shown), such as a human body. skin. Finally, as shown in FIG. 3D, the first substrate layer 2 is removed along with the first surface treatment layer 5, leaving the third substrate layer 4 alone.

Please refer to FIG. 4 and FIG. 5 at the same time. FIG. 4 is a cross-sectional view showing a second embodiment of the present invention, and FIG. 5 is a schematic view showing a state of use of the second embodiment of the present invention. The second embodiment is further different from the first embodiment in that the third substrate layer 4 and the second surface treatment layer 6 of the embodiment further comprise a third surface treatment layer 7 which is a printed layer. Text, a pattern or a combination thereof, thereby forming a tattoo sticker 8, which can be attached to human skin. However, the third surface treatment layer 7 of the present invention is not limited to be located between the third substrate layer 4 and the second surface treatment layer 6, and may be formed at the lower surface of the third substrate layer 4 in FIG. And, not limited to printing, or handwritten or graffiti. Accordingly, compared with the general decorative stickers, the tattoo sticker of the present invention has the characteristics of moisture permeability and water resistance, and almost no sticker is present.

The above embodiments are merely examples for convenience of description, and the scope of the claims claimed herein is based on the scope of the patent application. It is not limited to the above embodiment.

2‧‧‧First substrate layer

21, 41‧‧‧Micro-through holes

3‧‧‧Second substrate layer

4‧‧‧ Third substrate layer

5‧‧‧First surface treatment layer

6‧‧‧Second surface treatment layer

Claims (9)

An easily tearable composite layer structure having moisture permeability and water repellency, comprising: at least three base material layers; and at least two surface treatment layers respectively located between the at least three base material layers; wherein the at least At least two of the three layers of the substrate layer respectively include a plurality of fine through holes; the at least two layers of the surface treatment layer are at least one selected from the group consisting of: discharge, printing, release, and sizing. The surface treatment comes. The easy-to-tear composite layer structure of claim 1, wherein the at least two layers of the surface treatment layer are at least one of two surfaces adjacent to each other in the substrate layer of the at least three layers. It is obtained by this surface treatment. The easy-to-tear composite layer structure of claim 2, wherein at least one of the at least three substrate layers has a width different from the others. The easy-to-tear composite layer structure of claim 3, wherein the at least three layers of the substrate layer comprise a first substrate layer, a second substrate layer and a third substrate layer; The width of the second substrate layer and the third substrate layer are the same, and the width of the first substrate layer is greater than the second substrate layer and the third substrate layer. The easy-to-tear composite layer structure of claim 4, wherein the first substrate layer and the third substrate layer respectively comprise the plurality of fine through holes. An easily tearable composite layer structure having moisture permeability and water repellency according to claim 5, wherein each of the fine through holes has a pore diameter of from 0.004 μm to 100 μm. The easily tearable composite layer structure of claim 6, wherein the plurality of fine through holes have a distribution density greater than 10,000 per square inch. The structure of claim 7, wherein the at least two layers of the surface treatment layer comprise a solid layer of 15 μm thick, which is located on the surface of the third substrate layer; The third substrate layer has a moisture permeability of from 500 to 1500 g/m ² . Day. The easy-to-tear composite layer structure of the moisture permeability and water resistance of claim 8, wherein the material of the first substrate layer is a polymer film or a metal foil, and the material of the second substrate layer is paper, cloth or foam. The material of the third substrate layer is a polymer film.