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Laser holographic transfer paper, also known as laser stencil, is a laser holographic carrier that can only be recorded on a plastic film, and the pattern is transferred to the paper required for printing without any reservation, and the original laser holographic carrier is changed. Become a new source of anti-counterfeiting packaging materials. Laser holographic transfer paper technology is an internationally recognized anti-counterfeiting technology with promising future. It is based on the anti-counterfeiting requirements of the paper packaging industry, such as laser holographic molding, computer lithography, special plate making, precision electroforming, fine chemicals, high-precision stripping and other disciplines. A combination of high-tech products with multiple technologies. It is first made into a transferable holographic plastic film, which is then transferred to the paper surface or directly molded onto the paper to form a laser holographic transfer paper.
1) Laser holographic transfer paper production type
There are many classification methods for laser holographic transfer paper. According to the production process, it can be divided into direct method (direct pressure method) and transfer method (indirect method): according to whether laser holographic paper is positioned, it can be divided into non-position holographic paper and positioning holographic paper: according to Whether transmission can be divided into transmission holographic paper and reflective holographic paper: according to the thickness of the paper can be divided into holographic cardboard and holographic tissue.
2) Principle of laser holographic transfer paper production
1 Direct method: It is the method of directly coating the laser hologram on paper. This method is simple in production, but has limitations, and is generally limited to paper with a light weight.
Process characteristics:
·The process is simple and can be mass-produced:
·The requirements for the holographic molded version are higher. Because the molding effect of the paper is not so good, it can only be suitable for products with low holographic effect requirements:
·The paper has higher requirements, and the paper must be coated paper with good flatness. Otherwise, the hologram effect may be poor or the aluminum plating may not be strong or not bright. In addition, the water content of the paper is required to be controlled at 4%. The following, otherwise it will affect the aluminum plating: but the paper after aluminizing has a low water content, about 3%, can not be printed, must be humidity-controlled, so that the water content meets the printing requirements:
·Higher requirements for each coating, the primer layer should have better filling property, and have better adhesion with the paper and the molded layer: the molded layer must be firmly combined with the bottom layer and the aluminum layer, It should have good moldability and aluminum plating: the top coat is protective and printing ink, so it has better adhesion and wear resistance with aluminum layer, and has better printing suitability:
·High requirements for equipment, coating machine, aluminum plating machine, and molding machine should be designed and manufactured according to the characteristics of paper, and the performance requirements of all aspects are high.
2 Transfer method: It is the method of making the laser hologram on the PET (or BOPP) film, and then transferring the holographic layer to the paper required by the user through the compounding and stripping process. This method can be transferred to paper of various thicknesses with good brightness, but the process is relatively complicated.
Process characteristics:
· The requirements for holographic molded versions are relatively low:
·Besides the requirements for paper, in addition to good flatness, other requirements are not high, but it takes about 2 days to mature after compounding:! The coatings are required to be higher, and the coatings on BOPP and PET are each Differently, the release layer and the molded layer on PET should have better adhesion, and at the same time, it must have better wear resistance and printability, and the molded layer and the release layer and the aluminized layer should have better. Adhesion, but also better moldability and aluminizing:
·The requirements for equipment are not high. Since they are all made on the film, ordinary coating, molding, peeling, compounding and other equipment can be used:
Different deformations of different films, such as PET without deformation and BOPP deformation, can not transfer high-precision graphics: complex process, long time, low production efficiency, film pollution environment, etc., can not be mass-produced.
3) Features of laser holographic transfer paper
1 With anti-counterfeiting function: it expands the anti-counterfeiting means such as dots and lines to the surface, so that the entire surface of the packaging paper is provided with anti-counterfeiting characters and patterns, which increases the difficulty of counterfeiting.
2 With decorative function: the surface of laser holographic paper has good printing adaptability, and the gloss is good, the stereoscopic effect is strong, and the overall effect of printing is enhanced, so that the packaging reflects the best decorative function.
3 Recyclable degradation does not pollute the environment: The laser holographic transfer paper does not contain plastic film, and its physical properties are the same as ordinary paper, which can be recycled and degraded without polluting the environment. At present, such environmentally friendly packaging materials are recommended products in developed countries such as Europe and the United States.
4 Simple identification: Laser holographic text pattern recognition of laser holographic transfer paper is simple and easy for ordinary consumers to recognize.
5 low price: the price of domestic laser holographic transfer paper is slightly higher than ordinary aluminum-gold and silver paper, but lower than imported holographic transfer paper.
2 laser holographic transfer paper application
From the above analysis, laser holographic transfer paper can be used for the packaging of cigarettes, alcohol, medicine, health care products, cosmetics and other commodities because of its superior performance. At present, various cigarette factories such as Hangzhou Cigarette Factory and Ningbo Cigarette Factory have been widely used. This kind of anti-counterfeiting method has a good effect. At the same time, many beer companies have also used laser holographic transfer paper to make beer labels, and the quality of domestic laser holographic transfer paper is comparable to foreign products. Now Shaoxing Jinghua Laser Products Co., Ltd., Wuhan Huagong Technology Industry Co., Ltd. Image Branch, Shandong 5808 Factory, Beijing Pantais and other enterprises have introduced a number of laser holographic transfer paper production lines from the United States, Britain, Italy and other countries. It has basically met the needs of domestic anti-counterfeiting products. The laser holographic transfer paper integrates anti-counterfeiting, environmental protection and decoration, opening up a new source of materials for the anti-counterfeiting packaging printing industry. The application of laser holographic transfer paper on the packaging provides a material basis for further development of the national defense pseudo-packaging and packaging printing.
Due to the ideal printability of laser holographic transfer paper and the hologram on paper, it has a significant anti-counterfeiting function, so it plays a huge role in the field of anti-counterfeiting packaging. As an environmentally-friendly and anti-counterfeit packaging material, it has been widely used in various The anti-counterfeiting packaging of famous cigarettes, famous wines, medium and high-grade medicines and foods has become a wonderful work in the anti-counterfeiting packaging printing industry.
Why Our 100m Laser Distance Measurer?
1. Long range: 0.03-100m.
2. High Accuracy. The accuracy can achieve ±1.5 mm.
3. Multiple Functional Designs: can be used to measure distance, area, volume, angle, and Pythagorean measurement. Also can add function: Bluetooth, USB charge, voice, touch screen etc.
4. IP54 waterproof rating and dustproof