Card protective film, manufacturing method, and payment card

Abstract

The invention relates to a card protective film, a manufacturing method, and a payment card. The card protective film includes a core layer formed by a bi-oriented stretching polyester thin film, a first connection layer, a printing adhesion layer which is connected to a printing layer of a card base material, and a surface process layer which has the functions of hot-lamination release, thermal-lamination and / or hot-stamping. The printing adhesion layer is connected to one surface of the core layer through the first connection layer. The surface process layer is connected to the other one surface of the core layer. The card protective film can satisfy the technical performance demands of surface tension in surface processing of the payment card and release and process temperature during the surface processing of lamination of the card. The card protective film can protect the payment card as well as other cards better. The payment card or other cards have higher transparency, higher surface and entire strength and higher temperature resistant level and further has longer service life.

Description

[0001] 【Technical field】 [0002] The present invention relates to layered products, in particular to layered products substantially composed of synthetic resins, especially to protective films for use in the manufacture of cards, and to payment cards made with the protective film of the invention. [0003] 【Background technique】 [0004] Many cards need to be pasted with a protective film during the production process. Cards include payment cards, ID cards, driver's license cards, transportation cards, parking cards, campus cards, VIP cards, membership cards and time cards, etc. Payment cards include savings cards and Cards with payment functions such as credit cards. With the rapid development of electronic payment technology and applications, payment cards have become a very common payment tool. At the same time, with the transition of global payment cards to chip cards, the validity period of payment cards is generally extended from two to three years to five years or even...

AI Technical Summary

Problems solved by technology

The traditional polyvinyl chloride (PVC) payment card structure includes a PVC protective film (or surface layer) and a PVC printing layer (or core layer), which has the advantages of ease of use, but the payment card made of PVC material has the The technical defects are also very obvious. The main defects include: (1) The strength of the PVC protective film is low, and the protection for the core layer (or printing layer) of the payment card is insufficient, and it is easy to be damaged and peeled off during the service cycle, and even occurs If the overall card is broken, the user experience is not good; (2) The PVC material has low strength and low temperature resistance, and it is easy to become brittle in a low temperature environment and cause the card to break; it is easy to soften and cause deformation in a high temperature environment, which in turn makes the The card loses its use function; (3) The strength of polyvinyl chloride material is low. The payment card made of polyvinyl chloride material has low ability to resist bending and twisting, and the protection against external impact force is insufficient, which makes the card easily deformed and then impacted. The chip packaged on the surface or inside of the card will cause short-term or long-term failure of the chip function, making the payment card useless

[0009] 1. In fact, this security laminate cannot be used on cards that require special processing on the surface, such as payment cards. It can only be used on cards that do not require special processing on the surface, such as membership cards and time cards, because security laminates After the document core 4 is pasted to form a security document, the outer layer of the security document, that is, layer 1 of the security laminate, is a polyethylene terephthalate base material that is biaxially stretched to form a biaxially stretched polyethylene terephthalate substrate. Ethylene dicarboxylate (PET-C), the layer 1 has a very high surface finish, its surface tension is less than 32 dynes (Dyn), and the thermal bonding technical characteristics required for the payment card manufacturing process require the surface of the payment card The tension is above 36 dynes (Dyn); therefore, the layer 1 of the security laminate of this invention patent is far from meeting the surface tension requirements required for payment card surface processing, and cannot be used for tape lamination, holographic hot stamping and / or signature Hot stamping and other surface processing required, nor embossed / debossed printing, hot coloring, thermal transfer printing, photo printing, barcode and two-dimensional code processing and / or laser marking required for personalized information on the surface of payment cards Surface processing required;

[0010] 2. The traditional card making process adopts the thermal lamination process, which presses the multi-layer material of the card and the protective film, and uses a steel plate with a certain texture or structure to press a mirror or matte surface with fine lines in a certain direction on the card surface (or matte) effect, which provides a beautiful effect for the surface of the card, and at the same time, prevents the card from being scratched during use; the outer layer of the security document formed by pasting the security layer product of the invention patent with the core 4 of the security document is biaxially stretched Polyethylene terephthalate (PET-C) film, the material of the outer layer 1 has a glass transition temperature higher than 120 degrees Celsius; while the glass transition temperature of polyvinyl chloride material commonly used in traditional card printing layers is low at 80 degrees Celsius; if the processing temperature of the outer layer 1 is used for lamination in order to obtain surface characteristics, then the printing layer will be completely destroyed; and if the processing temperature of the PVC printing layer is used for lamination, the outer layer 1 Has not reached the processing temperature and cannot provide the surface finish required by traditional cards

[0011] To sum up, the Chinese invention patent application with the application number 201180018065.3 cannot provide the technical performance required for the production process on the card surface that requires special processing and the personalization process of card surface information, that is, it cannot be used for the production of cards that require special processing on the surface practical application on

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