TWI478825B - Transfer color change sticker - Google Patents

Description

Transfer color sticker

The present invention relates to a transfer color-changing sticker, and more particularly to a transfer color-changing sticker that can sense a light source and a temperature to present different colors or patterns.

In order to satisfy consumers' new consumer attitudes, more and more manufacturers have combined the transfer of printed or printed special stickers to make the printed text or pattern available under different environmental conditions. Produce different color changes, allowing users to highlight their personal style and combine with fashion trends.

Referring to FIG. 1 , a conventional color-changing sticker comprises a base layer 11 , a backing layer 12 sequentially formed from the surface of the base layer 11 , a transparent ink layer 13 , a ground layer 14 , a pattern layer 15 , and a pattern layer 15 . The photosensitive layer 16 is either a temperature sensing layer 17, and a film layer 18. The base layer 11 is peeled off during use, and the adhesive layer 12 is adhered to the surface of the predetermined object, and after the pressure is uniformly applied, the adhesive film layer 18 is peeled off to complete the transfer.

However, the color change sticker described above further forms a photosensitive layer 16 or a temperature sensing layer 17 on the surface of the pattern layer 15 to exhibit a gradual change in color by the length of time the light is irradiated or the change in the ambient temperature. However, the color change effect of the photosensitive layer 16 and the temperature sensing layer 17 cannot exist at the same time. If the photosensitive layer 16 and the temperature sensing layer 17 exist simultaneously, the photosensitive layer 16 generates color when the outdoor environment is irradiated with sunlight. Change, but at the same time, due to the illumination of the sunlight, the ambient temperature rises, and the temperature layer 17 also changes color. At this time, the color change effect will interfere with each other, so there can only be A single pattern can display different colors at different light sources or temperatures, and the visual effect is limited, and the conventional color-changing sticker can be completed after multiple printing and multi-pass processes, and the production process is complicated, and the production cost of the product is also improved. .

Accordingly, it is an object of the present invention to provide a transfer color-changing sticker that can simultaneously sense a light source and temperature while presenting a different color or pattern.

Thus, the transfer color-changing sticker of the present invention comprises a base layer, a pattern layer, and a film layer. The pattern layer is removably formed on the surface of the substrate layer, the pattern layer producing different color or pattern changes when receiving the light source and different temperature intervals. The film layer is formed on the surface of the pattern layer for transferring the pattern layer.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIG. 2, a preferred embodiment of the transfer color-changing sticker of the present invention comprises a base layer 2, a pattern layer 3, and a film layer 4.

The base layer 2 includes a substrate 21 and a release film 22 formed on the surface of the substrate 21. In the preferred embodiment, a paper containing a release agent is selected, which has better toughness and is not easily broken by the pulling tension.

The pattern layer 3 is removably formed on the surface of the release film 22, and includes a photosensitive pattern 31 and a temperature sensing pattern 32, and the patterns of the photosensitive pattern 31 and the temperature sensing pattern 32 may be the same or different.

The photosensitive pattern 31 is selected from the group consisting of a photosensitive color change material which exhibits different color changes under the conditions of irradiating sunlight and no sunlight. Preferably, the photosensitive pattern 31 is colorless selected from the case of non-irradiated sunlight, and is accepted. A photosensitive color changing material which develops color when sunlight is used; preferably, the photosensitive color changing material is selected from the group consisting of an azo compound, a metal halide, and a combination of the foregoing. The preferred embodiment is a photosensitive color-changing material of the brand New Prismatic Enterprise Co. Ltd, model UV-PD 2119, which is colorless when exposed to sunlight, and pink when exposed to sunlight.

The temperature sensing pattern 32 is selected from thermochromic materials which may change color in different temperature ranges, for example, color is selected from 10 ° C to 20 ° C depending on the actual ambient temperature, and colorless low temperature thermochromic material is used in other temperature ranges. , or 20 ° C to 30 ° C will be color, in other temperature range is a colorless medium temperature thermochromic material, or thermochromic materials that will change color in different temperature intervals, and can display different colors at different temperatures Preferably, the thermochromic material is selected from the group consisting of a copper ion complex, an organophosphorus compound, and a combination of the foregoing. The preferred embodiment is a low temperature thermochromic material selected from the brand New Prismatic Enterprise Co. Ltd, model TM-PD 31-3141. The ambient temperature is black at 10 ° C to 20 ° C, and is colorless in other temperature ranges.

Specifically, the photosensitive pattern 31 and the temperature sensing pattern 32 are prepared by first mixing the photosensitive color-changing material and the thermochromic material with a transparent ink to form a photosensitive ink and a temperature-sensitive ink, and then separately The photosensitive ink and the temperature sensitive ink are printed on the release film 22 to obtain the pattern layer 3 having the photosensitive pattern 31 and the temperature sensing pattern 32 at the same time. In addition, to It is to be noted that the order of the photosensitive pattern 31 and the temperature sensing pattern 32 can be interchanged. For example, the photosensitive pattern 31 can be printed and then printed, and the temperature sensing pattern 32 can be printed. The photosensitive pattern 31 is printed after 32, but the photosensitive pattern 31 formed first is located on the upper layer of the temperature sensing pattern 32 after the transfer is completed, and can be directly irradiated to the sunlight to develop color, for example, the photosensitive pattern 31 is located. The lower layer of the temperature sensing pattern 32 may be partially incompletely displayed due to indirect irradiation of sunlight. Preferably, the coloring effect of forming the photosensitive pattern 31 to form the temperature sensing pattern 32 is preferred. In the preferred embodiment, the photosensitive pattern 31 is formed to form the temperature sensing pattern 32. The photosensitive pattern 31 is a flower shape, and the temperature sensing pattern 32 is a butterfly shape.

In addition, the photosensitive ink and the composition of the temperature sensitive ink may further comprise a primary color pigment or a fluorescent material, respectively, to achieve different color mixing effects, so that the photosensitive pattern 31 and the temperature sensing pattern 32 It has a richer variety of color changing effects. At the same time, other functional additives such as thickeners may be further included to enhance the processability of the photosensitive ink and the temperature sensitive ink during the forming process.

The film layer 4 is formed on the surface of the pattern layer 3, and includes a fixing film 41 formed on the surface of the pattern layer 3, a transfer film 42 formed on the surface of the fixing film 41, and a removable layer. A protective film 43 formed on the surface of the transfer film 42. The fixing film 41 is used to protect the pattern or color of the pattern layer 3 from being affected by the transfer film 42. The transfer film 42 has a moderate viscosity and is used to transfer the pattern layer 3, and the protective film 43 is used. In order to prevent the transfer film 42 from losing viscosity. Due to the fixing film 41, the transfer film 42, and the structure of the protective film 43 The materials are well known to those skilled in the art and are not the focus of the technology, and therefore will not be further described.

When the transfer color-changing sticker is used, the user only needs to tear the protective film 43 off, and the transfer film 42 is adhered to the surface of the predetermined object (for example, the skin), and the base layer 2 is moved after being uniformly pressed. Alternatively, the pattern layer 3 can be transferred to the surface of the predetermined object.

Referring to FIGS. 3 and 4, when the transfer color-changing sticker is located in an indoor environment at a temperature of 10 ° C to 20 ° C and no sunlight is irradiated, the photosensitive pattern 31 is colorless, so that only the temperature pattern 32 of the black butterfly shape appears. When moving to the outside to make the transfer color-changing sticker illuminate the sunlight, the photosensitive pattern 31 of the flower shape gradually appears, and the temperature of the sunlight changes, so that the temperature-sensing pattern 32 also changes color, when the induced temperature exceeds the temperature. When the temperature range of the temperature sensing pattern 32 is changed, the temperature sensing pattern 32 gradually disappears, and finally the photosensitive pattern 31 of the pink flower shape is presented, that is, the transfer color changing sticker is at a low temperature (10 ° C to 20 °C) The indoor environment will have a black butterfly pattern, which will turn into a pink flower pattern when it is exposed to sunlight outdoors, which can cause visual changes.

It is also worth mentioning that the photosensitive pattern 31 and the temperature sensing pattern 32 of the present invention can also select a photosensitive color-changing material and a thermochromic material which are different in the same environmental conditions and exhibit different color changing effects, respectively, through multiple printing. Got it. Thus, when color is developed, a color photosensitive pattern 31 or a temperature sensing pattern 32 can be exhibited. Taking the preferred embodiment as an example, when the temperature sensing pattern 32 is printed by a plurality of thermochromic materials exhibiting different colors in an indoor environment of 10 ° C to 20 ° C, the photosensitive pattern 31 is irradiated by various kinds. Sunlight When the photosensitive color-changing material of different colors is printed, the transfer color-changing sticker is located in an indoor environment with a temperature of 10 ° C to 20 ° C, and when there is no sunlight, a pattern of a color butterfly shape is presented, and moving to the outside makes the turn When the printed color-changing sticker illuminates the sunlight, the temperature changes due to the sunlight, and exceeds the color-developing range of the temperature-sensitive pattern 32. At this time, the temperature-sensing pattern 32 gradually disappears, and finally, the color flower pattern is displayed, that is, The transfer color-changing sticker changes from a colorful butterfly pattern to a colored flower pattern under different environmental conditions, and exhibits a rich and varied color change effect.

In addition, the pattern layer 3 may have a single layer structure, and the pattern layer 3 of the single layer structure is formed by mixing the thermochromic material and the photosensitive color changing material with the transparent ink, and then forming the film in a single printing manner. On the release film 22, not only the step of the process is further simplified, but also the pattern layer 3 can simultaneously sense the light source and the temperature to achieve the effect of discoloration.

It should be noted that the single-layer structure pattern layer 3 may also be obtained by mixing a plurality of photosensitive color-changing materials and thermochromic materials having different color changes under different temperature intervals or photosensitive conditions, and thus, The pattern layer 3 can have different color changes under different temperature intervals or different illumination conditions to achieve a visual change effect.

In summary, the transfer color-changing sticker provided by the present invention is an element that will change with light and temperature, and is selected and designed on the pattern layer 3 by the photosensitive pattern 31 and the temperature-sensing pattern 32. The color selection and matching of the color changing range enables the pattern layer 3 to produce a colorful pattern and color change according to changes in light and temperature, and the photosensitive pattern 31 and the temperature sensing pattern 32 do not interfere with each other, not only Increase product value can also meet The consumer's personalized demand can achieve the added effect of the visual change, and the pattern layer 3 can be completed by directly printing the photosensitive ink, the temperature sensitive ink, or a combination of one of the prepared photosensitive layers. Not only is the production process simplified, the work time is reduced, and the production cost is reduced, so the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2‧‧‧ basal layer

21‧‧‧Substrate

22‧‧‧ Release film

3‧‧‧pattern layer

31‧‧‧Photosensitive pattern

32‧‧‧temperature pattern

4‧‧‧film layer

41‧‧‧ Fixing film

42‧‧‧Transfer film

43‧‧‧Protective film

1 is a side cross-sectional view of a conventional color-changing sticker illustrating the structure of the conventional color-changing sticker; FIG. 2 is a side cross-sectional view of the preferred embodiment, illustrating the composition of the preferred embodiment; FIG. A schematic view of an embodiment illustrating that the pattern layer of the preferred embodiment is colored by a temperature sensing pattern to exhibit a butterfly shape when no sunlight is irradiated; and FIG. 4 is a view similar to FIG. 3, illustrating that when the sunlight is illuminated, The temperature sensing pattern gradually disappears due to a temperature change exceeding a color development range, and the photosensitive layer of the pattern layer produces a color change to exhibit a flower shape.

2‧‧‧ basal layer

21‧‧‧Substrate

22‧‧‧ Release film

3‧‧‧pattern layer

31‧‧‧Photosensitive pattern

32‧‧‧temperature pattern

4‧‧‧film layer

41‧‧‧ Fixing film

42‧‧‧Transfer film

43‧‧‧Protective film

Claims (3)

A transfer color-changing sticker comprises: a base layer; a pattern layer removably formed on a surface of the base layer, the pattern layer generates different color changes when receiving the light source and at different temperature intervals, and includes a a photosensitive pattern that produces a color change when receiving sunlight, and a temperature sensing pattern that is the same or different from the photosensitive pattern and that causes a color change in different temperature ranges, and the photosensitive pattern exhibits at least one color when irradiated with sunlight. It is colorless when no sunlight is irradiated, and the temperature sensing pattern is selected from a low temperature thermochromic material, a medium temperature thermochromic material, or a combination thereof, and the color temperature of the low temperature thermochromic material ranges from 10 ° C to 20 ° C. The medium temperature thermochromic material has a color development temperature ranging from 20 ° C to 30 ° C, and the temperature sensing pattern exhibits at least one color in a color rendering temperature range, and is colorless outside the color rendering temperature range; and a film A layer is formed on a surface of the pattern layer for transferring the pattern layer. The transfer color-changing sticker according to claim 1, wherein the base layer comprises a substrate, and a release film formed on the surface of the substrate. The transfer color-changing sticker according to claim 1, wherein the adhesive film layer comprises a fixing film, a transfer film, and a protective film which are sequentially formed from the surface of the pattern layer.