TWM598232U - A heat-removable label(4) - Google Patents

Abstract

The utility model is related to a heat-removable label, which having good printability, heat-removable effect, the label can be used as a beer bottle labels. The structure of label comprising a substrate film, a primer layer, a heat-expandable pressure sensitive adhesive layer and a release layer.

Description

A heated removable label (4)

This creation is related to a heat-removable label, which has good printability and heat-removable effect . After removal, there is no residual glue. It is used in the field of printing and packaging technology.

Currently, there are known heat-removable labels on the market, and the carrier film is a heat shrinkable film (Taiwan New Patent Publication Number: M535642). The heat shrinkable film is produced due to different bidirectional elongation rates, so that the heated removable label is prone to uneven bidirectional shrinkage rate during heating, and cannot achieve a stable heating removable effect .

This creation is a heat-removable label. The pressure-sensitive adhesive layer contains at least one heat-expandable microsphere to form a heat-expandable pressure-sensitive adhesive layer. The heated heat-expandable pressure-sensitive adhesive layer can be heated after heating. The removable label achieves a stable heating and removable effect . Therefore, the label can be removed by heating to complete this creation.

The technical content of this creation is described as follows. This description is an example and is not used to limit the scope of patent protection of this creation.

This creation is a heat-removable label, and its structure from top to bottom includes a first layer of carrier film, a second layer of primer layer, a third layer of heat-expandable pressure sensitive adhesive layer and a fourth layer of release layer.

This creation is a heated removable label, in which the first layer of carrier film is used The material includes pearl paper or synthetic paper, with a thickness of 30-100 microns (μm), and a thickness of 38-75 microns (μm) is preferred.

This creation is a heat-removable label, in which the second primer layer is acrylic primer with a thickness of 1-10 microns (μm), and a thickness of 3-8 microns (μm) is better.

This creation is a heat-removable label, in which the third layer of heat-expandable pressure-sensitive adhesive includes acrylic pressure-sensitive adhesive or rubber-based pressure-sensitive adhesive, and contains at least one heat-expandable adhesive. Microspheres. The thickness of the heat-expandable pressure-sensitive adhesive layer is 15-40 micrometers (μm), and the thickness of 20-30 micrometers (μm) is preferred.

This creation is a heat-removable label. The materials used for the fourth release layer include paper and plastic film. Its thickness is 25~150 microns (μm), and its thickness is 38-100 microns (μm). By.

1: bearing film

2: primer layer

3: Heated heat-expandable pressure sensitive adhesive layer

4: Release layer

Figure 1 is a schematic structural diagram of a heated removable label.

As shown in Figure 1, this creation is related to a heating removable label, which is printed into various patterns and die-cut into various shapes, which includes a carrier film layer (1), a primer layer (2), and a heat-expandable label. Pressure sensitive adhesive layer (3) and release layer (4). The first carrier film layer uses pearl paper with a thickness of 54 microns (μm); the second laminated acrylic primer layer has a thickness of 5 microns (μm); the third layer is heated and expandable pressure sensitive adhesive layer It is an acrylic pressure-sensitive adhesive and contains a thermally expandable microsphere with a thickness of 25 microns (μm); the fourth release layer is a polyester film with a thickness of 50 microns (μm).

Creation foregoing label product obtained in Example, the test results, and tags 90 ℃ 1% alkali (NaOH) bath, 3 minutes after heating the thermally expandable pressure sensitive adhesive layer will lose uniformly heated and expanded clay It means that the label can be detached from the beer bottle stably , and it is found that there is no residual glue, which can fully meet the requirements of beer bottle recycling. This invention is a kind of heating removable label which has industrial applicability and meets the requirements of new patent.

1: bearing film

2: primer layer

3: Heated heat-expandable pressure sensitive adhesive layer

4: Release layer

Claims (10)

A heat-removable label whose structure from top to bottom includes a first layer of bearing film layer, a second layer of primer layer, a third layer of heat-expandable pressure sensitive adhesive layer and a fourth layer of release layer. The heat-removable label according to claim 1, wherein the thickness of the first supporting film layer is 30-100 micrometers (μm). The heat-removable label according to claim 1, wherein the thickness of the first supporting film layer is 38 to 75 micrometers (μm). The heat-removable label as described in claim 1, wherein the thickness of the second primer layer is 1-10 microns (μm). The heat-removable label as described in claim 1, wherein the thickness of the second primer layer is preferably 3-8 microns (μm). The heat-removable label according to claim 1, wherein the thickness of the third heat-expandable pressure-sensitive adhesive layer is 15-40 microns (μm). The heat-removable label according to claim 1, wherein the thickness of the third heat-expandable pressure-sensitive adhesive layer is preferably 20-30 microns (μm). The heat-removable label as described in claim 1, wherein the thickness of the fourth release layer is 25-150 microns (μm). The heat-removable label according to claim 1, wherein the thickness of the fourth release layer is 38-100 micrometers (μm). The heat-removable label according to claim 1, wherein the third heat-expandable pressure-sensitive adhesive layer contains at least one heat-expandable microsphere.

Images