TWM599250U - A heat-removable label (2) - 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 printed layer, a substrate film, a heat-crosslinkable pressure sensitive adhesive layer and a release layer.

Description

A heated removable label (2)

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.

At present, it is known that the carrier film of the heat-removable label is a heat shrinkable film (Taiwan New Patent Publication No.: 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 . In order to solve the aforementioned shortcomings, this creation was completed.

This creation is a heat-removable label. The pressure-sensitive adhesive layer contains at least one blocked isocyanate hardener to form a heat-hardenable pressure-sensitive adhesive layer. The heat-curable pressure-sensitive adhesive layer is heated and cured. After the link is hardened, the heat-removable label can achieve a stable heat-removable effect . Therefore, the label can be removed by heating to complete this creation.

The technical content of this creation is explained 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 printing layer, a second carrier film layer, a third heating hardenable pressure sensitive adhesive layer, and a fourth release layer.

This creation is a heat-removable label, in which the first printing layer is a surface treatment agent with a thickness of 1-8 microns (μm), and a thickness of 3-5 microns (μm) is better.

This creation is a heat-removable label. The material used for the second layer of the carrier film layer includes plastic film, such as pearl paper or synthetic paper, with a thickness of 30-100 microns (μm) and a thickness of 38-75 microns ( μm) is better.

This creation is a heat-removable label, in which the pressure-sensitive adhesive of the third layer of heat-curable pressure-sensitive adhesive layer includes acrylic pressure-sensitive adhesive or rubber-based pressure-sensitive adhesive, and contains at least one blocked isocyanate hardener . The thickness of the heat-curable pressure sensitive adhesive layer is 10-30 microns (μm), and the thickness of 15-25 microns (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: Printing layer

2: bearing film

3: Heating can harden the pressure sensitive adhesive layer

4: Release layer

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

As shown in Figure 1, this creation is related to a heated removable label, which is printed into various patterns and die-cut into various shapes, including a printing layer (1), a carrier film layer (2), and a heat-curable feel Pressure glue layer (3) and release layer (4). The thickness of the surface treatment agent for the first printing layer is 4 micrometers (μm); the second carrier film layer uses pearl paper with a thickness of 54 micrometers (μm); the third heating hardenable pressure sensitive adhesive layer is acrylic The pressure sensitive adhesive contains a blocked isocyanate hardener with a thickness of 20 microns (μm); the fourth release layer is a polyester film with a thickness of 50 microns (μm).

The label product obtained in the foregoing creative embodiment, the test result shows that the label is placed in a hot-air oven at 120°C . After 25 minutes , the heated hardenable pressure-sensitive adhesive layer will be cross-linked and hardened and lose its viscosity. Then, the beer bottle is heated with high-pressure air. The label on the label is sprayed off, and it is observed 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 that has industrial applicability and meets the requirements of a new patent.

1: Printing layer

2: bearing film

3: Heating can harden the pressure sensitive adhesive layer

4: Release layer

Claims (10)

A heat-removable label whose structure from top to bottom includes a first printing layer, a second bearing film layer, a third heating hardenable pressure sensitive adhesive layer, and a fourth release layer. The heat-removable label according to claim 1, wherein the thickness of the first printing layer is 1-8 micrometers (μm). The heat-removable label according to claim 1, wherein the thickness of the first printing layer is preferably 3 to 5 micrometers (μm). The heat-removable label according to claim 1, wherein the thickness of the second supporting film layer is 30-100 micrometers (μm). The heat-removable label according to claim 1, wherein the thickness of the second supporting film layer is 38~75 micrometers (μm). The heat-removable label according to claim 1, wherein the thickness of the third layer of heat-curable pressure-sensitive adhesive layer is 10-30 micrometers (μm). The heat-removable label according to claim 1, wherein the thickness of the third heat-curable pressure-sensitive adhesive layer is preferably 15-25 micrometers (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-curable pressure-sensitive adhesive layer contains at least one blocked isocyanate hardener.

Images