TWM584003U - Pressure sensitive label - Google Patents

Abstract

A pressure sensitive label for attaching to a flexible packaging material comprising a substrate layer, a protective film layer and a protein layer. The substrate layer has a first first attachment surface and a second attachment surface, and the first attachment surface is for attaching to the flexible packaging material. The protective film layer is attached to the second adhesive surface of the substrate layer, and the substrate layer and the protective film layer together form an accommodating space. The protein layer is composed of an aromatic amino acid, which is disposed in the accommodating space, and the protein layer has at least one pressure measuring region. When the pressure received by the at least one pressure measurement zone is greater than or equal to a critical pressure value, the at least one pressure measurement zone is changed from an initial information to a pressure identification information.

Description

Pressure sensitive label

The present invention relates to a pressure sensitive label, and more particularly to a pressure sensitive label having a protein layer.

In order to extend the shelf life of food, food manufacturers usually use high pressure processing (HPP) to process food. The so-called ultra-high pressure technology means that a liquid (usually water) is used as a medium for transmitting pressure, and it is present in an environment of ultra-high pressure (for example, 100 MPa or more), and is combined with an appropriate time and temperature (for example, 50 ° C or lower). The physical treatment of food, in order to achieve the purpose of food processing, preservation and sterilization.

At present, when manufacturers promote foods they produce, they usually use foods that have been subjected to high-pressure processing procedures to emphasize food safety. However, most manufacturers only use words or words to explain that the food they produce is subjected to high pressure treatment, and does not actually prove to consumers whether the pressure of food pressurization meets the standard, so consumers still eat food. There are still doubts about security. Therefore, how to prove that food has been subjected to standard pressure and pressure treatment has become one of the urgent problems for researchers in this field.

The present invention is to provide a pressure sensitive label, thereby solving the problem that the manufacturer described in the prior art does not actually prove whether the pressure of the food pressurization meets the standard, and the consumer still has doubts about the food.

A pressure sensitive label disclosed in one embodiment of the present invention is for attaching to a flexible packaging material, comprising a substrate layer, a protective film layer and a protein layer. The substrate layer has a first first attachment surface and a second attachment surface, and the first attachment surface is for attaching to the flexible packaging material. The protective film layer is attached to the second adhesive surface of the substrate layer, and the substrate layer and the protective film layer together form an accommodating space. The protein layer is composed of an aromatic amino acid, which is disposed in the accommodating space, and the protein layer has at least one pressure measuring region. When the pressure received by the at least one pressure measurement zone is greater than or equal to a critical pressure value, the at least one pressure measurement zone is changed from an initial information to a pressure identification information.

According to the pressure sensitive label of the above embodiment, since the pressure measurement area of the protein layer of the pressure sensitive label is subjected to a pressure greater than or equal to the critical pressure value, the pressure measurement area is changed from the initial information to the pressure identification information, so that the consumer can attach The information on the pressure measurement zone of the pressure sensitive label on the flexible packaging material determines whether the food in the flexible packaging material is indeed subjected to the pressure treatment, and whether the pressure of the pressure is up to standard.

The above description of the novel content and the following description of the embodiments are used to demonstrate and explain the principles of the present invention, and to provide a further explanation of the scope of the patent application of the present invention.

Please refer to Figure 1 to Figure 3. 1 is a perspective view of a pressure sensitive label attached to a flexible packaging material according to a first embodiment of the present invention. 2 is an exploded perspective view of the pressure sensitive label of FIG. 1. 3 is a cross-sectional view of the pressure sensitive label of FIG. 1.

This embodiment discloses a pressure sensitive label 1a. The pressure sensitive label 1a is for example attached to a flexible packaging material 2. This flexible packaging material 2 is, for example, a packaging bag or bottle for containing food. The pressure sensitive label 1a comprises a substrate layer 10a, a protein layer 20a, a protective layer 30a and an adhesive layer 40a.

The material of the base material layer 10a is, for example, polyethylene terephthalate, cotton paper, non-woven fabric, or foam. The base material layer 10a has a first first attachment surface 11a and a second attachment surface 12a. The protein layer 20a is stacked on the second attachment surface 12a of the base material layer 10a.

The material of the film layer 30a is, for example, polyethylene terephthalate, polypropylene or polyethylene. The film layer 30a is, for example, a transparent sheet having a first surface 31a, a second surface 32a, and a receiving groove 33a. The first surface 31a of the film layer 30a is opposite to the second surface 32a, and the accommodating groove 33a is located on the first surface 31a. The first surface 31a of the film layer 30a is adhered to the second attachment surface 12a of the substrate layer 10a, for example, and the accommodating groove 33a of the film layer 30a and the second attachment surface 12a of the substrate layer 10a are formed together. A housing space 50a. The protein layer 20a is located in the accommodating space 50a and is covered by the protective film layer 30a and the substrate layer 10a to prevent foreign matter (such as detergent or urea) from contaminating the protein layer 20a. In the present embodiment, the purpose of attaching the protective film layer 30a to the substrate layer 10a by adhesion is because the protein layer 20a on the substrate layer 10a is easily deteriorated by heat, so that the hot pressing method with high temperature influence is avoided. The film layer 30a and the substrate layer 10a are bonded, and the film layer 30a and the substrate layer 10a are bonded by an adhesive method which does not have a high temperature effect.

The adhesive layer 40a is adhered to the first attachment surface 11a of the base material layer 10a, and the first attachment surface 11a of the base material layer 10a is adhered to the flexible packaging material 2 through the adhesive layer 40a.

In the present embodiment, the protein layer 20a is composed, for example, via an aromatic amino acid. More specifically, the protein layer 20a has four pressure measuring regions 21a, 22a, 23a, 24a arranged side by side in an array direction D. The materials of the pressure measurement regions 21a, 22a, 23a, and 24a are selected from the group consisting of tryptophan, tyrosine, and phenylalanine, and the materials of the pressure measurement regions 21a, 22a, 23a, and 24a are different from each other. For example, the pressure measuring zone 21a is made of a combination of tryptophan and tyrosine, the pressure measuring zone 22a is made of a combination of tyrosine and amphetamine, and the pressure measuring zone 23a is made of tryptophan and phenylalanine. The combination and the pressure measurement zone 24a are made of a combination of tryptophan, tyrosine and phenylalanine.

When the pressures of the pressure measuring zones 21a, 22a, 23a, 24a are each greater than or equal to a critical pressure value, the pressure measuring zones 21a, 22a, 23a, 24a are changed from an initial information to a pressure identification information. In this embodiment, the initial information and the pressure identification information are, for example, colors. That is, the initial information is, for example, a primary color, and the pressure recognition information is, for example, a pressure recognition color. The critical pressure values of the pressure measuring zones 21a, 22a, 23a, 24a are different from each other, and the critical pressure values of the pressure measuring zones are small to large in the arrangement direction D, and the pressure measuring zones 21a, 22a, 23a, These pressure recognition colors of 24a are different from each other, and the following paragraphs will be exemplified.

First, the critical pressure value of the pressure measurement zone 21a is, for example, 1.1 bar, and the primary color of the pressure measurement zone 21a is, for example, dark red. The critical pressure value of the pressure measurement zone 22a is, for example, 1000 bar, and the primary color of the pressure measurement zone 22a is, for example, white. The critical pressure value of the pressure measurement zone 23a is, for example, 3000 bar, and the primary color of the pressure measurement zone 23a is, for example, white. The critical pressure value of the pressure measurement zone 24a is, for example, 6000 bar, and the primary color of the pressure measurement zone 24a is, for example, white.

Next, please refer to Table 1 for the following description. Table 1 shows the colors of the pressure measurement areas 21a, 22a, 23a, and 24a after being subjected to pressures in different sections. Hereinafter, it will be assumed that the sterilization pressurization demand for the food in the flexible packaging material 2 is 3,000 bar or more.

Table 1     pressure  Measurement area 21a  pressure  Measurement zone 22a  pressure  Measurement zone 23a  pressure  Measurement area 24a  1.1bar>P  dark red  white  white  white  1000bar>P≧1.1bar  white  white  white  white  3000bar>P≧1000bar  white  yellow-green  white  white  6000bar>P≧3000bar  white  yellow-green  green  white  P≧6000bar  white  yellow-green  green  blue  

When the pressure measurement areas 21a, 22a, 23a, and 24a are subjected to a pressure of less than 1.1 bar, the pressure measurement areas 21a, 22a, 23a, and 24a are maintained in primary colors, that is, dark red, white, white, and white, respectively. If the consumer sees that the pressure measuring areas 21a, 22a, 23a, 24a on the flexible packaging material 2 are dark red, white, white and white, respectively, it can be judged that the food located in the flexible packaging material 2 is in the manufacturing process. The pressure is less than 1.1 bar, so that the food in the flexible packaging material 2 can be processed only in the general environment without being pressurized.

When the pressure measuring zones 21a, 22a, 23a, 24a are subjected to a pressure greater than or equal to 1.1 bar and less than 1000 bar, the pressure measuring zone 21a is converted from the primary color to the pressure recognition color, while the other pressure measuring zones 22a, 23a, 24a are maintained. In primary colors. That is, the pressure measurement area 21a changes from dark red to white, and the pressure measurement areas 22a, 23a, and 24a are maintained in white. If the consumer sees that the pressure measuring areas 21a, 22a on the flexible packaging material 2 are all white, it can be judged that the pressure of the food in the flexible packaging material 1 is greater than 1.1 bar but less than 1000 bar. Therefore, under the premise that the sterilization and pressurization required for the food in the flexible packaging material 2 is 3,000 bar or more, it is judged that the pressure of the food of the flexible packaging material 2 is not in compliance with the standard.

When the pressure measuring zones 21a, 22a, 23a, 24a are subjected to a pressure of 1000 bar or more and less than 3000 bar, the pressure measuring zones 21a, 22a respectively change from the primary color to the pressure recognition color, and the other pressure measuring zones 23a, 24a Maintained in primary colors. That is, the pressure measurement area 21a changes from dark red to white, the pressure measurement area 22a changes from white to yellow-green, and the pressure measurement areas 23a, 24a are maintained in white. If the consumer sees that the pressure measuring areas 22a, 23a on the flexible packaging material 2 are yellow-green and white, respectively, it can be judged that the food in the flexible packaging material 2 is subjected to a pressure of more than 1000 bar but less than 3,000 bar. Therefore, under the premise that the sterilization and pressurization required for the food in the flexible packaging material 2 is 3,000 bar or more, it is judged that the pressure of the food of the flexible packaging material 2 is not in compliance with the standard.

When the pressure measuring zones 21a, 22a, 23a, 24a are subjected to a pressure of 3000 bar or more and less than 6000 bar, the pressure measuring zones 21a, 22a, 23a respectively change from the primary color to the pressure recognition color, and the pressure measuring zone 24a is maintained. In primary colors. That is, the pressure measurement area 21a changes from dark red to white, the pressure measurement area 22a changes from white to yellow-green, the pressure measurement area 23a changes from white to green, and the pressure measurement area 24a is maintained in white. If the consumer sees that the pressure measuring zones 23a, 24a on the flexible packaging material 2 are green and white, respectively, it can be judged that the food in the flexible packaging material 2 is subjected to a pressure greater than 3000 bar but less than 6000 bar. Therefore, under the premise that the sterilization and pressurization demand for the food in the flexible packaging material 2 is 3,000 bar or more, it is judged that the pressure of the food of the flexible packaging material 2 is in compliance with the standard.

When the pressure receiving portions 21a, 22a, 23a, 24a are subjected to a pressure of 6000 bar or more, the pressure measuring regions 21a, 22a, 23a, 24a are respectively changed from the primary colors to the pressure recognition colors. That is, the pressure measurement area 21a changes from dark red to white, the pressure measurement area 22a changes from white to yellow-green, the pressure measurement area 23a changes from white to green, and the pressure measurement area 24a changes from white to blue. If the consumer sees that the pressure measurement zone 24a on the flexible packaging material 2 is blue, it can be judged that the food in the flexible packaging material 2 is subjected to a pressure greater than 6000 bar. Therefore, under the premise that the sterilization and pressurization demand for the food in the flexible packaging material 2 is 3,000 bar or more, it is judged that the pressure of the food of the flexible packaging material 2 is in compliance with the standard.

As can be seen from the above, when the pressure measuring areas 21a, 22a, 23a, 24a of the protein layer 20a of the pressure sensitive label 1a are subjected to a pressure greater than or equal to the critical pressure value, the pressure measuring areas 21a, 22a, 23a, 24a will be from the primary colors. By changing to the pressure recognition color, the consumer can judge whether the food in the flexible packaging material 2 has actually passed through the color of the pressure measuring areas 21a, 22a, 23a, and 24a of the pressure sensitive label 1a attached to the flexible packaging material 2. Pressurized and the pressure of the pressurization is up to standard.

In the present embodiment, the protein layer 20a is not limited to have four pressure measuring regions 21a, 22a, 23a, 24a. In other embodiments, the number of protein layers can be adjusted to less than four or greater than four depending on actual needs.

Further, the magnitudes of the critical pressure values, the primary colors, and the colors of the pressure recognition colors of the pressure measurement regions 21a, 22a, 23a, and 24a described above are merely illustrative and are not intended to limit the present invention. In other embodiments, the magnitude of the critical pressure value of the pressure measurement zone, the primary color, and the color of the pressure recognition color can be adjusted as needed.

In addition, in the present embodiment, the color of the pressure measuring areas 21a, 22a, 23a, and 24a described above can be directly determined by the naked eye, but is not limited thereto. In other embodiments, the color of the pressure measurement zone can be directly judged by the naked eye, and the color of the pressure measurement zone that cannot be judged by the naked eye can be converted into a color directly judged by the naked eye through other media or optical instruments.

In addition, the foregoing initial information and pressure identification information are exemplified by colors, but are not limited thereto. In other embodiments, the initial information and pressure identification information may be numerical values, and the values may be spectral, transmittance, absorbance, or polarization. After the pressure measurement zone is subjected to a pressure greater than or equal to the critical pressure value, the value of the pressure measurement zone changes. In terms of the consumer, the value of the pressure measurement zone can be detected by an optical instrument to determine whether the food in the flexible packaging material is indeed subjected to pressure treatment and whether the pressure of the pressure is up to standard.

Next, please refer to FIG. 4 and FIG. 5. 4 is an exploded perspective view of a pressure sensitive label according to a second embodiment of the present invention. FIG. 5 is a cross-sectional view of the pressure sensitive label of FIG. 4. FIG.

This embodiment discloses a pressure sensitive label 1b, which is similar to the pressure sensitive label 1a of FIG. 1, and therefore only the differences between the two are described below, and similar parts will not be described again.

In the pressure-sensitive adhesive label 1b of the present embodiment, the substrate layer 10b has a receiving groove 13b on the second attachment surface 12b, and the receiving groove 13b and the first surface 31b of the coating layer 30b together form the accommodating space 50b. . The protein layer 20b is located in the accommodating space 50b and is covered by the base material layer 10b and the protective film layer 30b.

According to the pressure sensitive label of the above embodiment, since the pressure measurement area of the protein layer of the pressure sensitive label is subjected to a pressure greater than or equal to the critical pressure value, the pressure measurement area is changed from the initial information to the pressure identification information, so that the consumer can attach The information of the pressure measurement zone of the pressure sensitive label on the flexible packaging material determines whether the food in the soft packaging material is indeed subjected to the pressure treatment, and whether the pressure of the pressure is up to standard.

Although the present invention has been described above in the foregoing embodiments, it is not intended to limit the present invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the new patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

1a, 1b‧‧‧ pressure tag  2‧‧‧Flexible packaging materials  10a, 10b‧‧‧ substrate layer  11a‧‧‧First attachment surface  12a, 12b‧‧‧second attachment surface  13b‧‧‧ accommodating slots  20a, 20b‧‧‧ protein layer  21a, 22a, 23a, 24a‧‧‧ pressure measurement zone  30a, 30b‧‧‧ film layer  31a, 31b‧‧‧ first surface  32a‧‧‧ second surface  33a‧‧‧ accommodating slots  40a‧‧‧adhesive layer  50a, 50b‧‧‧ accommodating space  D‧‧‧ Direction  

1 is a perspective view of a pressure sensitive label attached to a flexible packaging material according to a first embodiment of the present invention.  2 is an exploded perspective view of the pressure sensitive label of FIG. 1.  3 is a cross-sectional view of the pressure sensitive label of FIG. 1.  4 is an exploded perspective view of a pressure sensitive label according to a second embodiment of the present invention.  FIG. 5 is a cross-sectional view of the pressure sensitive label of FIG. 4. FIG.  

Claims (10)

A pressure sensitive label for attaching to a flexible packaging material, comprising:
a substrate layer having a first first attachment surface and a second attachment surface for attaching to the flexible packaging material;
a protective film layer attached to the second adhesion surface of the substrate layer, wherein the substrate layer and the protective film layer together form an accommodating space; and a protein layer composed of an aromatic amino acid and disposed on The accommodating space, the protein layer has at least one pressure measuring area;
Wherein, when the pressure received by the at least one pressure measuring zone is greater than or equal to a critical pressure value, the at least one pressure measuring zone is changed from an initial information to a pressure identification information. The pressure sensitive label of claim 1, wherein the initial information and the pressure identification information are colors, and the at least one pressure is when the pressure applied to the at least one pressure measurement area is greater than or equal to a critical pressure value. The measurement zone is changed from a primary color to a pressure recognition color. The pressure sensitive label of claim 2, wherein the at least one pressure measuring area of the protein layer is plural, and the critical pressure values of the pressure measuring areas are different from each other, and the pressure measuring areas are different. The pressure recognition colors are different from each other. The pressure sensitive label of claim 3, wherein the pressure measurement areas are selected from the group consisting of tryptophan, tyrosine and phenylalanine, and the pressure measurement zones are made of each other. Different. The pressure sensitive label of claim 1, further comprising an adhesive layer attached to the first attachment surface of the substrate layer, the first attachment surface of the substrate layer being used The flexible packaging material is adhered through the adhesive layer. The pressure-sensitive adhesive label of the first aspect of the invention, wherein the substrate layer has a receiving groove on the second attachment surface, and the receiving groove and the protective film layer together form the receiving space. The pressure-sensitive adhesive label of the first aspect of the invention, wherein the protective film layer has a receiving groove, and the receiving groove and the second adhesive surface of the substrate layer together form the receiving space. The pressure sensitive label of claim 1, wherein the substrate layer is made of polyethylene terephthalate, cotton paper, non-woven fabric or foam. The pressure sensitive label of claim 1, wherein the material of the protective layer is polyethylene terephthalate, polypropylene or polyethylene. The pressure sensitive label of claim 1, wherein the protective film layer is adhered to the second adhesive surface of the base material layer by adhesion.