An optical variable device (OVD) having a structure of a trademark
Patent Information
- Application Number
- CN202522090454.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-09-28
AI Technical Summary
[0002]现有光变商标多采用单一感光变色层覆盖整个商标图案区域，仅能实现整体单一颜色变化，视觉层次感与差异化不足，难以满足高端产品对商标个性化、精细化的设计需求，部分改进型光变商标虽尝试划分变色区域，但各变色区域间无有效分隔结构，易出现油墨渗透现象，导致不同变色区域颜色混杂，无法精准实现不同波长光线照射下的差异化变色效果，且多数光变商标未针对分区变色需求优化底层结构，变色区域颜色呈现不够鲜艳，进一步影响商标视觉表现力，难以兼顾分区变色的精准性与视觉效果，制约了光变商标的功能拓展与应用范围
[0011]本实用新型的有益效果：通过将感光变色层在商标图案层上划分为感光响应波长范围不同的图案第一变色区与图案第二变色区，并借助透明分隔条实现两区的有效分隔，既避免了不同变色区油墨渗透导致的颜色混杂问题，又能在不同波长光线照射下呈现差异化变色效果，显著提升商标视觉层次感与独特性，同时搭配颜色基底层增强变色区域色彩对比度、透明保护涂层保障结构耐用性、加强包边提升边缘强度，且通过不干胶层与离型纸实现便捷粘贴与储存，整体结构兼顾分区变色精准性、视觉表现力与实用性能，有效满足高端产品对商标个性化、精细化的设计与应用需求。
Smart Images
Figure CN224816805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trademark technology, and in particular to a trademark structure with optical variable properties. Background Technology
[0002] Existing optically variable trademarks mostly use a single photosensitive color-changing layer to cover the entire trademark pattern area, which can only achieve a single color change overall. This results in insufficient visual layering and differentiation, making it difficult to meet the personalized and refined design requirements of high-end products. Although some improved optically variable trademarks attempt to divide the color-changing areas, there is no effective separating structure between the color-changing areas, which easily leads to ink penetration and color mixing in different color-changing areas. This makes it impossible to accurately achieve differentiated color-changing effects under different wavelengths of light. Furthermore, most optically variable trademarks have not optimized the underlying structure for the needs of zoned color-changing, resulting in insufficient color vibrancy in the color-changing areas, further affecting the visual expressiveness of the trademark. It is difficult to balance the accuracy and visual effect of zoned color-changing, thus restricting the functional expansion and application scope of optically variable trademarks. Utility Model Content
[0003] To address the technical problems existing in the background art, this utility model proposes a trademark structure with optical variable properties.
[0004] This utility model proposes a light-changing trademark structure, including a substrate layer. The upper surface of the substrate layer is connected to a trademark pattern layer and a trademark letter layer. A photosensitive color-changing layer is printed on the surface of the trademark pattern layer and the trademark letter layer. The photosensitive color-changing layer includes a first color-changing area and a second color-changing area printed on the surface of the trademark pattern layer, and a letter color-changing area printed on the surface of the trademark letter layer. The first color-changing area and the second color-changing area divide the trademark pattern layer into two color-changing regions, and the photosensitive response wavelength ranges of the first color-changing area and the second color-changing area are different. A transparent separator is provided between the first color-changing area and the second color-changing area.
[0005] Furthermore, a color base layer is coated on the upper surface of the substrate layer. The coating thickness of the color base layer is 0.01-0.02 mm, and a hollow area matching the first color-changing area and the second color-changing area of the pattern is reserved on the color base layer to avoid the first color-changing area and the second color-changing area of the pattern.
[0006] Furthermore, a transparent protective coating is applied to the upper surfaces of the color base layer, the first color-changing area of the pattern, and the second color-changing area of the pattern, and the light transmittance of the transparent protective coating is not less than 90%.
[0007] Furthermore, the transparent protective coating contains uniformly distributed micro-scratch-resistant particles with a particle size of 5-10 μm and made of silicon dioxide.
[0008] Furthermore, the edge of the substrate layer is provided with a reinforcing edging extending along its perimeter, and the width of the reinforcing edging is 0.5-1mm.
[0009] Furthermore, the lower surface of the substrate layer is provided with an adhesive layer, the thickness of which is 0.03-0.05mm, and the adhesive layer is provided with vent holes spaced apart along its length, the diameter of which is 0.1-0.2mm, and the spacing between adjacent vent holes is 3-5mm.
[0010] Furthermore, the lower surface of the self-adhesive layer is covered with release paper, which is glassine release paper with a thickness of 0.08-0.12 mm. Furthermore, the substrate layer is a PET film with a thickness of 0.05-0.1 mm, the photosensitive color-changing layer has a thickness of 0.03-0.08 mm, and the transparent protective coating has a thickness of 0.02-0.05 mm.
[0011] The beneficial effects of this utility model are as follows: By dividing the photosensitive color-changing layer on the trademark pattern layer into a first color-changing area and a second color-changing area with different photosensitive wavelength ranges, and using a transparent separator to effectively separate the two areas, the problem of color mixing caused by ink penetration in different color-changing areas is avoided. It can also present differentiated color-changing effects under different wavelengths of light, significantly improving the visual hierarchy and uniqueness of the trademark. At the same time, the combination of a color base layer to enhance the color contrast of the color-changing area, a transparent protective coating to ensure structural durability, and reinforced edging to improve edge strength, and the use of an adhesive layer and release paper to achieve convenient pasting and storage, the overall structure takes into account the accuracy of zoned color-changing, visual expression and practical performance, effectively meeting the personalized and refined design and application needs of high-end products for trademarks. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the disassembled structure of this utility model; Figure 2 This is a schematic diagram of the trademark structure in this utility model; Figure 3 This is a schematic diagram of the photosensitive color-changing layer in this utility model; Figure 4 This is a schematic diagram showing the structure of the trademark pattern layer and the color-changing area in this utility model; Figure 5 This is a schematic diagram of the assembly structure of this utility model.
[0013] In the diagram: 1. Substrate layer; 2. Trademark pattern layer; 3. Trademark letter layer; 4. Photosensitive color-changing layer; 41. First color-changing area of the pattern; 42. Second color-changing area of the pattern; 43. Transparent separator strip; 44. Letter color-changing area; 5. Transparent protective coating; 6. Reinforced edging; 7. Color base layer; 8. Self-adhesive layer; 9. Release paper. Detailed Implementation
[0014] Reference Figure 1-5 The present invention proposes a light-changing trademark structure, including a substrate layer 1 made of PET film with a thickness controlled between 0.05-0.1mm. This material has both good flexibility and mechanical strength, which can provide a stable adhesion base for subsequent functional layers and adapt to the pasting requirements of different curved or flat carriers. At the edge of the substrate layer 1, a reinforcing edging 6 is integrally formed along its perimeter. The width of the reinforcing edging 6 is set to 0.5-1mm. Its function is to enhance the structural strength of the edge of the substrate layer 1, avoid edge damage or curling during the cutting, transportation or use of the trademark, and extend the overall service life of the trademark. On the upper surface of the substrate layer 1, the trademark pattern layer 2 and the trademark letter layer 3 are fixedly connected respectively. The two are distributed according to the preset trademark design scheme and together constitute the basic visual identity of the trademark. The trademark pattern layer 2 is printed with ink with a certain adhesion to present the graphic elements of the trademark, while the trademark letter layer 3 is formed by the same printing process and is used to display the text or letter information of the trademark. The two work together to ensure the recognizability of the trademark. To impart photosensitive color-changing properties to the trademark, a photosensitive color-changing layer 4 is printed on the surface of both the trademark pattern layer 2 and the trademark letter layer 3. The thickness of the photosensitive color-changing layer 4 is 0.03-0.08mm. This thickness ensures the stability of the photosensitive color-changing effect without making the trademark too thick overall. Specifically, the photosensitive color-changing layer 4 is divided into three functional areas: the first color-changing area 41 of the pattern printed on the surface of the trademark pattern layer 2, the second color-changing area 42 of the pattern printed on the surface of the trademark letter layer 3, and the letter color-changing area 44 printed on the surface of the trademark letter layer 3. The first color-changing area 41 and the second color-changing area 42 of the pattern divide the trademark pattern layer 2 into two independent color-changing areas, and the two have different photosensitive response wavelength ranges. For example, the first color-changing area 41 of the pattern can respond to ultraviolet light with a wavelength of 350-380nm, and the second color-changing area 42 of the pattern can respond to ultraviolet light with a wavelength of 380-400nm. This design allows the pattern part of the trademark to present differentiated color changes under different wavelengths of light, enhancing the visual hierarchy and uniqueness of the trademark. A transparent dividing strip 43 is provided between the first color-changing area 41 and the second color-changing area 42 of the pattern. The transparent dividing strip 43 is made of resin material with excellent light transmittance. Its function is to clearly divide the two color-changing areas, prevent the inks of different color-changing areas from penetrating each other during printing or use, and at the same time, not affect the light transmission, ensuring that each color-changing area can independently realize the photosensitive color-changing function. To further optimize the visual effect of the trademark, a color base layer 7 is coated on the upper surface of the substrate layer 1 and in the gap between the trademark pattern layer 2 and the trademark letter layer 3. The color base layer 7 uses white ink and has a coating thickness of 0.01-0.02mm. The white color base layer 7 can enhance the overall color contrast of the trademark, making the color of the photosensitive color-changing layer 4 more vivid and eye-catching after color change. At the same time, a hollow area is reserved on the color base layer 7 that perfectly matches the shape and size of the first color-changing area 41 and the second color-changing area 42 of the pattern. This hollow area avoids the first color-changing area 41 and the second color-changing area 42 of the pattern, so as to avoid the color base layer 7 from blocking the photosensitive effect of the photosensitive color-changing layer 4 and ensuring that the color-changing function is realized normally. Considering that trademarks may face problems such as friction, scratches or environmental corrosion in daily use, a transparent protective coating 5 is applied to the upper surfaces of the color base layer 7, the first color-changing area 41 of the pattern, and the second color-changing area 42 of the pattern. The thickness of the transparent protective coating 5 is 0.02-0.05mm, and the light transmittance is not less than 90%. The high light transmittance ensures that light can pass smoothly to the photosensitive color-changing layer 4 without affecting the color-changing effect. In addition, micro anti-scratch particles are uniformly mixed inside the transparent protective coating 5. The micro anti-scratch particles are made of silica material, and the particle size is controlled at 5-10μm. The silica particles have high hardness, which can significantly improve the friction and scratch resistance of the transparent protective coating 5, effectively protecting the underlying color base layer 7 and photosensitive color-changing layer 4 from physical damage and maintaining the appearance integrity of the trademark. To facilitate easy label application, a self-adhesive layer 8 is coated on the lower surface of the substrate layer 1. The self-adhesive layer 8 has a thickness of 0.03-0.05mm and is made of a high-adhesion and aging-resistant pressure-sensitive adhesive material to ensure that the label can be firmly adhered to various carrier surfaces and is not easy to fall off after long-term use. At the same time, ventilation holes with a diameter of 0.1-0.2mm and a spacing of 3-5mm between adjacent ventilation holes are distributed along the length of the self-adhesive layer 8. These ventilation holes can expel air between the substrate layer 1 and the carrier surface during the label application process, avoiding the formation of air bubbles that would cause uneven adhesion and ensuring the aesthetic appearance of the label after application. On the lower surface of the self-adhesive layer 8, there is a release paper 9. The release paper 9 is made of glassine release paper with a thickness of 0.08-0.12mm. The glassine release paper has good release properties and can be easily peeled off from the surface of the self-adhesive layer 8. After peeling, no release agent will remain on the surface of the self-adhesive layer 8, and it will not affect the adhesiveness of the self-adhesive layer 8. When the label is not in use, the release paper 9 protects the self-adhesive layer 8, preventing dust and impurities from adhering or the self-adhesive layer 8 from sticking prematurely, ensuring that the label can be properly pasted when in use.
[0015] In practical use, when the optically variable trademark is exposed to ultraviolet light, the first color-changing area 41 and the second color-changing area 42 of the photosensitive color-changing layer 4 will change color according to their respective wavelength ranges. The letter color-changing area 44 will also change color simultaneously. Combined with the background of the color base layer 7, the trademark presents a vivid and layered visual effect. When the trademark is exposed to an environment without ultraviolet light, the photosensitive color-changing layer 4 will return to its initial color, realizing the dynamic color-changing function. At the same time, the reinforced edge 6 and the transparent protective coating 5 ensure the performance of the trademark from the perspectives of structural strength and surface protection, respectively. The self-adhesive layer 8 and the release paper 9 ensure the convenient installation and storage of the trademark. The coordinated action of all components makes the optically variable trademark functional, durable and practical.
[0016] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A trademark structure with optical variable ink, characterized in that, The material includes a substrate layer (1), on the upper surface of which a trademark pattern layer (2) and a trademark letter layer (3) are connected respectively. A photosensitive color-changing layer (4) is printed on the surface of the trademark pattern layer (2) and the trademark letter layer (3). The photosensitive color-changing layer (4) includes a first color-changing area (41) and a second color-changing area (42) printed on the surface of the trademark pattern layer (2), and a letter color-changing area (44) printed on the surface of the trademark letter layer (3). The first color-changing area (41) and the second color-changing area (42) divide the trademark pattern layer (2) into two color-changing areas. The photosensitive response wavelength ranges of the first color-changing area (41) and the second color-changing area (42) are different. A transparent separator (43) is provided between the first color-changing area (41) and the second color-changing area (42).
2. The optically variable trademark structure according to claim 1, characterized in that, The upper surface of the substrate layer (1) is coated with a color base layer (7). The coating thickness of the color base layer (7) is 0.01-0.02 mm. A hollow area matching the first color-changing area (41) and the second color-changing area (42) of the pattern is reserved on the color base layer (7) to avoid the first color-changing area (41) and the second color-changing area (42) of the pattern.
3. The optically variable trademark structure according to claim 2, characterized in that, The upper surfaces of the color base layer (7), the first color-changing area (41) of the pattern, and the second color-changing area (42) of the pattern are jointly coated with a transparent protective coating (5), and the light transmittance of the transparent protective coating (5) is not less than 90%.
4. The optically variable trademark structure according to claim 3, characterized in that, The transparent protective coating (5) contains uniformly distributed micro-scratch-resistant particles with a particle size of 5-10 μm and made of silicon dioxide.
5. The optically variable trademark structure according to claim 1, characterized in that, The substrate layer (1) has a reinforcing edging (6) extending along its perimeter at its edge, and the width of the reinforcing edging (6) is 0.5-1mm.
6. The optically variable trademark structure according to claim 1, characterized in that, The lower surface of the substrate layer (1) is provided with an adhesive layer (8), the thickness of the adhesive layer (8) is 0.03-0.05mm, and the adhesive layer (8) is provided with vent holes distributed at intervals along its length direction, the diameter of the vent holes is 0.1-0.2mm, and the spacing between adjacent vent holes is 3-5mm.
7. The optically variable trademark structure according to claim 6, characterized in that, The lower surface of the self-adhesive layer (8) is covered with release paper (9), which is glassine release paper with a thickness of 0.08-0.12 mm.
8. The optically variable trademark structure according to any one of claims 1-7, characterized in that, The substrate layer (1) is a PET film with a thickness of 0.05-0.1 mm, the photosensitive color-changing layer (4) has a thickness of 0.03-0.08 mm, and the transparent protective coating (5) has a thickness of 0.02-0.05 mm.