Solvent-based gravure inks, prints and laminated products for laminates

A kind of gravure printing ink, solvent-based technology, applied in the direction of layered products, metal layered products, synthetic resin layered products, etc., can solve the problems of delayed operation, printing can not continue, etc., to achieve excellent gravure printing printability Effect

Active Publication Date: 2021-10-08
TOYO INK SC HOLD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once these problems occur, printing cannot continue, which may delay operations

Method used

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  • Solvent-based gravure inks, prints and laminated products for laminates
  • Solvent-based gravure inks, prints and laminated products for laminates
  • Solvent-based gravure inks, prints and laminated products for laminates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0195] Hereinafter, the present invention will be described in detail through examples, however, the present invention is not limited to these examples. It should be noted that, unless otherwise specified, "parts" and "%" in this section represent "parts" and mass percentage in the sense of mass, respectively.

[0196] (hydroxyl value)

[0197] Hydroxyl value refers to the value obtained after converting the amount of hydroxyl in 1g of resin into mg of potassium hydroxide. The calculation of the amount of hydroxyl is by first esterifying or acetylating the hydroxyl in the resin with an excess of anhydrous acid. The remaining acid was then back titrated with base. The hydroxyl value is measured in accordance with JIS K 0070 (1992).

[0198] (amine value, acid value)

[0199] The amine value means the number of mg of potassium hydroxide equivalent to the amount of hydrochloric acid required to neutralize the amino groups contained in 1 g of the resin. Acid value refers to th...

Embodiment 2-3

[0233] (Synthesis Example 2-2 and Reference Synthesis Example 2-3) [Polyurethane Resins PU2-2 and PU2-3]

[0234] Polyurethane resin solutions PU2-2 and PU2-3 were synthesized in a similar manner to Synthesis Example 2-1, the difference being that the raw materials shown in Table 1-2 were used. In Table 1-2, PMPA, PPG and TDI represent the following compounds:

[0235] PPA: Polyester polyol formed by condensation of 3-methyl-1,5-pentanediol and adipic acid

[0236] PPG: polypropylene glycol

[0237] TDI: Toluene diisocyanate (methyl-1,3-phenylene diisocyanate)

[0238] (Synthesis Example 3-1) [vinyl chloride-acrylic acid copolymer resin PVAc1]

[0239] In a 1.0L autoclave, 1.0g of potassium persulfate (K 2 S 2 o 8) was dissolved in 500g of ion-exchanged water and the solution obtained was allowed to stand for degassing. After raising the temperature to 60° C., 425 g of sodium di(2-ethylhexyl) sulfosuccinate (trade name: Aerosol OT) consisting of 357 g of vinyl chloride,...

Embodiment 1-1

[0242] (Example 1-1) [Preparation of solvent type gravure ink S1-1 for laminate]

[0243] 40 parts of polyurethane resin solution PU1-1 (solid content: 30%), 5.0 parts of vinyl chloride-vinyl acetate copolymer resin solution (Nissin Chemical Industry Co., Ltd.) The prepared SOLBIN TAO, vinyl chloride: vinyl acetate: vinyl alcohol (mass ratio) = 91:2:7, solid content of ethyl acetate solution is 30%), 10 parts of C.I. Pigment Red 57:1 (azo lake red pigment) and 37 parts of n-propyl acetate / IPA solution in a mixing ratio of 70 / 30 were mixed and dispersed for 30 minutes. Subsequently, 5.0 parts of ethylene glycol monomethyl ether and 3.0 parts of water were added and mixed among the above under stirring with a disperser to obtain a solvent type gravure ink S1-1 for a laminate. The composition of the mixture is shown in Table 3-1.

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Abstract

Provided is a solvent-based gravure ink for laminates that does not cause whitening of the printed layer, produces less filming and squeegee wear associated with ink deposition, and has excellent gravure printing under high-temperature and high-humidity conditions Printability. The solvent-type gravure ink for a laminate of the present invention contains a pigment (A), a binder resin (B), an organic solvent (C) and water (D), and satisfies the following (1) to (3). (1) Polyurethane resin (b1) and vinyl chloride copolymer resin (b2) that jointly account for 80 to 100% by mass of the binder resin (B) in 100% by mass, and the mass of (b1) and (b2) The ratio (b1):(b2) is 95:5 to 40:60. (2) Containing 1 to 50% by mass of polyether-derived structural units in 100% by mass of the polyurethane resin (b1). (3) Containing 0.1-15% by mass of the 100% by mass of the gravure ink as an organic solvent (C) glycol ether organic solvent (c1) and 0.1-5% by mass of water (D) .

Description

technical field [0001] The present invention relates to solvent-based gravure inks for laminates, printed matter and laminated products. Background technique [0002] When film substrates such as OPP film, PET film or NY film are used as packaging materials or similar materials, they are usually printed with printing ink to decorate the substrate or protect the surface of the substrate. The printed substrate is also subjected to the sewing process and lamination process if necessary, so as to finally obtain packaging materials for various purposes such as food packaging and cosmetic packaging. [0003] Printing methods on film substrates or paper substrates include, for example, gravure printing. A printing plate used in the gravure printing method includes concave portions (cells) corresponding to printed portions of letters, patterns, and the like. Among them, the ink (gravure ink) is first adhered to the degree that it can be kept in the concave part on the printing pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/102B32B27/00C09D11/033C09D11/106
CPCB32B7/12B32B15/082B32B15/085B32B15/088B32B15/09B32B15/12B32B15/20B32B23/042B32B23/06B32B23/08B32B27/08B32B27/10B32B27/302B32B27/304B32B27/32B32B27/34B32B27/36B32B27/365B32B29/005B32B2250/02B32B2255/10B32B2255/20B32B2255/205B32B2307/4023B32B2307/75B32B2439/40B32B2439/70C09D11/037C09D11/102C09D11/106B32B27/00C09D11/033
Inventor 成广治宪安田秀树桥本阳一冈村贤野田伦弘小藤通久
Owner TOYO INK SC HOLD CO LTD
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