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Polyester film for flexible printing plate

A technology of flexographic printing plate and polyester film, which is applied in printing, printing plate, printing process, etc.

Active Publication Date: 2011-07-27
TORAY ADVANCED MATERIALS KOREA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the disadvantage that the films produced according to this method are highly humidity-dependent and, especially in the case of application film rolls, the antistatic agent is transferred to the surface opposite to it

Method used

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  • Polyester film for flexible printing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. Preparation of coating solution for forming separable adhesive layer (A)

[0046] Add 100 parts by weight (based on non-volatile components) of water-dispersible polyester resin (produced by Nippon Synthesis Co.), 100 parts by weight of acrylic resin (produced by Nippon Carbide Co., Ltd.) to the pure water that has passed through the ion exchange resin , 10 parts by weight of a melamine-based crosslinking agent (manufactured by Cytec) and 2.5 parts by weight of a nonionic actylenic diol (Nissan Chemical Industries Co., Ltd.) as a surfactant, and stirring the solution to prepare a coating solution. The coating solution had a total solids content of 3.0%.

[0047] 2. Preparation of coating solution for forming antistatic layer (C)

[0048] Add 100 parts by weight of cationic polymer antistatic agent (produced by Konishi Company) composed of quaternary ammonium salt copolymerized with acrylic acid resin skeleton, 2.5 parts by weight of nonionic actylenic glycol (Ni...

Embodiment 2

[0052] Except in the step of preparing the coating solution for forming the separable adhesive layer (A), 100 parts by weight of polyester resin (produced by Nippon Synthesis Co., Ltd.), 150 parts by weight of Acrylic resin (produced by Nippon Carbide Co.), 20 parts by weight of epoxy-based cross-linking agent (produced by Nagasechem Co.) and 1.5 parts by weight of nonionic actylenic diol (produced by Nissan Chemical Industries Co., Ltd.) as surfactant, and stirring A polyester film for a flexographic printing plate was manufactured in the same manner as in Example 1 except that the above solution was used to prepare a coating solution having a total solid content of 3.0%. The evaluation results of the polyester film are shown in Table 1 below.

Embodiment 3

[0054] Except that in the step of preparing the coating solution for forming the separable adhesive layer (A), 30 parts by weight of melamine resin (produced by Cytec Corporation) was added as a cross-linking agent, manufactured according to the same method as in Example 1 Polyester film for flexographic printing plates. The evaluation results of the polyester film are shown in Table 1 below.

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Abstract

Disclosed herein is a polyester film for flexographic printing plates, which comprises: a polyester base layer (B); a detachable adhesive layer (A) formed on one surface of the polyester base layer using polyester resin and acrylic resin; and an antistatic layer (C) formed on the other surface of the polyester base layer. In the disclosed polyester film, the detachable adhesive layer is formed onone surface of the polyester base layer using polyester resin in combination with acrylic resin, and thus can have increased adhesion to the base layer and photosensitive resin. Also, the other surface of the polyester base layer has formed thereon the antistatic layer, which has excellent antistatic performance and, at the same time, is not transferred to a surface opposite thereto and is not greatly influenced by humidity. Thus, the disclosed polyester film is suitable for flexographic printing plates.

Description

technical field [0001] This invention relates to polyester films for flexographic printing plates, and more particularly to polyester films suitable for flexographic printing plates, wherein a polyester resin is used in combination with an acrylic resin to form a releasable bond on one surface of a polyester base layer. laminated layer, thereby increasing the adhesion with the base layer and photosensitive resin, and forming an antistatic layer on the other surface of the polyester base layer, so it has excellent antistatic properties, and the antistatic layer will not transfer to on the opposite surface and is less affected by humidity. Background technique [0002] A flexographic printing plate is manufactured by laminating a photosensitive resin on one surface of a polyester base film by a coating or extrusion method, and also laminating a protective film to protect the photosensitive resin, followed by aging. Then, the polyester base was exposed to ultraviolet light (ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/09
CPCC09J167/00B41N1/12C08L33/06C08L2666/04B32B27/08B32B27/16B32B27/36
Inventor 金相弼徐基奉黄昌益李圭锡
Owner TORAY ADVANCED MATERIALS KOREA
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