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Colored laminate metal sheet for containers

A metal plate and coloring layer technology, applied in the field of colored laminated metal plates for containers, can solve the problems of requiring a lot of time for cleaning and hindering productivity, and achieve the effect of maintaining design and excellent rust resistance.

Inactive Publication Date: 2011-10-12
JFE STEEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a laminated metal sheet is used instead of a painted metal sheet, colorants such as pigments are added to the laminated film for coloring, but there are problems as follows: (i) it is limited to pigments that can be used in food hygiene After pigments are used in film-making equipment, it takes a lot of time to wash them, hindering productivity

Method used

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  • Colored laminate metal sheet for containers
  • Colored laminate metal sheet for containers
  • Colored laminate metal sheet for containers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0105] [Manufacture of lamination film]

[0106] Tables 1 to 6 show the configurations of the resin film and the colored adhesive layer laminated on the resin film.

[0107] The components for coloring the pressure-sensitive adhesive layer were mixed under the conditions shown in Tables 1 to 6, and the resulting mixture was dissolved in a mixed solvent of toluene and methyl ethyl ketone to prepare a coating liquid. Apply the above-mentioned coating solution to one surface of the resin film shown in Table 1 to Table 6 using a gravure coating roll coater, and then dry it at 80 to 120°C to form a colored bond on the surface of the resin film. agent layer to produce a laminating film.

[0108] [Manufacture of colored laminated steel sheets for containers]

[0109] As the metal plate, a chrome-plated steel sheet (TFS: tin-free sheet) was used. After degreasing and pickling cold-rolled steel sheets with a thickness of 0.21 mm, use CrO-containing 3 , F - and SO 4 2- The chromi...

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PUM

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Abstract

Disclosed is a colored laminate metal sheet for containers, wherein one or both surfaces of a metal sheet are covered with a lamination film that is obtained by forming a colored adhesive layer on a polyester resin film. The colored adhesive layer is mainly composed of a polyester resin, and additionally contains an etherified amino resin, an epoxy resin, a strong acid compound and a coloring agent. The colored laminate steel sheet has excellent deep drawing formability, adhesion after forming, anti-rust properties in scratched portions, and the like, and when the colored laminate steel sheet is used for production of a container such as a can, the appearance design thereof can be maintained since the lamination film is not susceptible to retort whitening.

Description

technical field [0001] The present invention relates to a colored laminated metal sheet for containers, particularly a colored laminated metal sheet for containers that is excellent in deep drawing formability, adhesiveness after molding, rust resistance of flawed parts, designability after retort sterilization, etc. . Background technique [0002] Conventionally, painted metal sheets can be used for metal cans for containers, but the productivity is low due to the complicated coating process performed by can manufacturers. In addition, when a solvent-based coating is used, a large amount of solvent volatilizes during drying and sintering after coating, and therefore it is necessary to discharge the volatilized solvent, which poses an environmental problem. Therefore, in recent years, a laminated metal sheet in which a thermoplastic resin film is thermocompression-bonded to a heated metal sheet has been used. In particular, laminated metal sheets using polyester resin film...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/09B65D1/00B65D1/12C08G12/42C08L63/00C08L67/00C09J161/20C09J163/00C09J167/00C09J7/29
CPCB32B7/12B32B15/09B32B15/18B32B27/06B32B27/36B32B2255/06B32B2255/205B32B2307/4026B32B2307/714B32B2307/738B32B2439/66C08K5/0041C08K5/42C08L61/28C08L61/32C08L63/00C08L79/04C09J167/02C09J2400/163C09J2463/00C09J2467/00C09J2467/006C09J2479/02C08K3/013C09J7/29C08L2666/14Y10T428/2848C09J2301/408
Inventor 安江良彦岩佐浩树北川淳一山中洋一郎
Owner JFE STEEL CORP
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