# US 9,751,297 B1 · Surface treatment method for composite surfaces

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- Number: US 9,751,297 B1
- Document ID: US9751297B1
- Status: Granted
- Kind: B1
- Application number: 15/170,956
- Filed: 2016-06-02
- Granted: 2017-09-05
- Earliest claimed: 2016-04-15
- Assignees: Hon Hai Precision Industry Co., Ltd.
- Applicants: Hon Hai Precision Industry Co., Ltd.
- Inventors: Yi-Zhong Sheu; Chih-Jung Chang; Hung-Chun Ma; Han-Lung Lee; Han-Lung Chao; Jih-Chen Liu; Feng-Yuen Dai
- Web page: https://patentgrep.com/patent/US9751297B1

## CPC

- B41J 2/01: Ink jet
- B44C 1/1712: {Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive}
- B41J 11/0015: {for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114)}
- B41M 7/00: After-treatment of prints, e.g. heating, irradiating, {setting of the ink, protection of the printed stock (pre-treatment or treatment during printing B41M5/0011; printers for treating or overcoating copy materials before, during or after printing B41J11/0015)}
- B41J 2/315: characterised by selective application of heat to a heat sensitive printing or impression-transfer material (B41J2/385, B41J2/435 take precedence)
- B41M 7/0027: {using protective coatings or layers by lamination or by fusion of the coatings or layers}
- B41M 2205/10: Post-imaging transfer of imaged layer; transfer of the whole imaged layer
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B44C: PRODUCING DECORATIVE EFFECTS (processes for applying liquids or other fluent materials to surfaces, in general B05D; shaping of plastics or substances in a plastic state B29C; printing processes to produce transfer pictures B41M3/12; thermographic duplication or marking methods B41M5/00); MOSAICS; TARSIA WORK (imitation of mosaic or tarsia work patterns B44F11/04); PAPERHANGING {(labels G09F; multi-step processes for making paper labels or tags B31D1/02)}
- B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P)

## Abstract

A surface treatment method for a composite surface of a basic casing is provided. The composite surface is cooperatively formed by an outer surface and four sidewalls surrounding the outer surface. The surface treatment method includes following steps. A heat transferring film is provided. A printing pattern film is formed on a portion of the heat transferring film via a digital inkjet printing process. The heat transferring film is formed on the composite surface via a vacuum heat transfer process, with edges of the heat transferring film being wrapped around the sidewalls and the printing pattern firm being attached to the outer surface.

## Claims

### Claim 1

A surface treatment method for a composite surface of a basic casing, the composite surface cooperatively formed by an outer surface and four sidewalls surrounding the outer surface, the surface treatment method comprising:
providing a heat transferring film;
forming a printing pattern film on a portion of the heat transferring film via a digital inkjet printing process; and
forming the heat transferring film on the composite surface via a vacuum heat transfer process, with edges of the heat transferring film being wrapped around the sidewalls and the printing pattern film being directly attached to the outer surface;
wherein the printing pattern film comprises a basic layer, a printing pattern layer connected to a surface of the basic layer, and a second protective layer connected to a surface of the printing pattern layer facing away from the basic layer, the second protective layer is attached to the portion of the heat transferring film;
wherein the heat transferring film comprises a heat pressing layer and a releasing film layer attached to a surface of the heat pressing layer;
wherein the heat pressing layer comprises a glue layer, a pattern layer, and a first protective layer connected in that order; the releasing film layer is attached to a surface of the first protective layer away from the glue layer;
wherein the second protective layer of the printing pattern film is attached to a surface of the glue layer facing away from the first protective layer.