# US 10,245,815 B2 · Surface treatment method for casing

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- Number: US 10,245,815 B2
- Document ID: US10245815B2
- Status: Granted
- Kind: B2
- Application number: 15/247,002
- Filed: 2016-08-25
- Published: 2017-10-19
- Granted: 2019-04-02
- Earliest claimed: 2016-04-15
- Assignees: MiiCs & Partners (Shenzhen) Co., Ltd.
- Applicants: MiiCs & Partners (Shenzhen) Co., Ltd.
- Inventors: Yi-Zhong Sheu; Han-Lung Chao; Han-Lung Lee; Hung-Chun Ma; Chih-Jung Chang; Jih-Chen Liu; Feng-Yuen Dai
- Web page: https://patentgrep.com/patent/US10245815B2

## CPC

- B32B 37/025: {Transfer laminating}
- B32B 1/00: Layered products having a non-planar shape
- B32B 3/30: characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/06: as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08)}
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/36: comprising polyesters
- B32B 37/10: characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
- B32B 37/1018: {using only vacuum}
- B32B 37/12: characterised by using adhesives
- B32B 37/26: with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers
- B32B 38/004: {by physically contacting the layers, e.g. by the use of heated platens or rollers}
- B32B 38/145: {Printing}
- B41J 2/01: Ink jet
- B32B 2037/268: {Release layers}
- B32B 2255/26: Polymeric coating
- B32B 2307/402: Coloured
- B32B 2307/4023: on the layer surface, e.g. ink
- B32B 2307/406: Bright, glossy, shiny surface
- B32B 2307/412: Transparent
- B32B 2307/728: Hydrophilic
- B32B 2307/748: Releasability
- B32B 2310/0831: using UV radiation
- B32B 2429/00: Carriers for sound or information
- B32B 2439/00: Containers; Receptacles
- B41M 7/0081: {using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams}
- G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]}
- H04B 1/3888: Arrangements for carrying or protecting transceivers
- H04M 1/0202: {Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets (constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03)}
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- 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)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04B: TRANSMISSION
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

A surface treatment method for a casing is disclosed, the casing being formed by the outer surface and four sidewalls of the casing. The surface treatment method includes a heat transferring film formed on the casing by a vacuum heat transfer process or a paint-drying process and a surface pattern layer formed on a portion of a surface of the heat transferring film opposite to the outer surface by a digital inkjet printer applying three different types of UV-curable ink.

## Claims

### Claim 1

A surface treatment method for a casing, the casing having an outer surface and four sidewalls surrounding the outer surface, the surface treatment method comprising:
forming a heat transferring film on the casing by a vacuum heat transfer process or a paint-drying process, the heat transferring film covering the outer surface and the four sidewalls; wherein the process of forming the heat transferring film on the casing further comprises:
a heat pressing layer and a releasing film layer attached to a surface of the heat pressing layer;
forming the heat transferring film on the casing under heat and vacuum pressure using a heat pressing machine, with the heat pressing layer being attached to the casing; and
removing the releasing film layer of the heat transferring film to expose the heat pressing layer; and
forming a surface pattern layer on a portion of the heat transferring film facing away from the outer surface by a digital inkjet curable by ultraviolet light.

### Claim 2 (depends on 1)

The surface treatment method of claim 1, wherein the heat pressing layer comprises a glue layer, a pattern layer, and a first protective layer stacked in that order; the releasing film layer is attached to a surface of the first protective layer facing away from the pattern layer; the first protective layer prevents the pattern layer from being damaged.

### Claim 3 (depends on 2)

The surface treatment method of claim 2, wherein the glue layer is made of a hot glue which is able to be melted onto the casing when heated.

### Claim 4 (depends on 2)

The surface treatment method of claim 2, wherein the first protective layer is made of a transparent resin.

### Claim 5 (depends on 1)

The surface treatment method of claim 1, wherein the releasing film layer is made of a water soluble material capable of being extending toward two orthogonal axes.

### Claim 6 (depends on 2)

The surface treatment method of claim 2, wherein a surface of the releasing film layer attached to the first protective layer comprises a plurality of microstructures; a surface of the first protective layer attached to the releasing film layer also comprises microstructures which match the microstructures of the releasing film layer.

### Claim 7 (depends on 6)

The surface treatment method of claim 6, wherein the microstructures are three dimensional curved structures formed by embossing or engraving.

### Claim 8 (depends on 2)

The surface treatment method of claim 2, wherein the surface pattern layer comprises a basic layer, a printing pattern layer, and a second protective layer in that order; the basic layer is attached to the portion of the first protective layer facing away from the pattern layer; the second protective layer prevents the printing pattern layer from being damaged.

### Claim 9 (depends on 8)

The surface treatment method of claim 8, wherein the printing pattern layer comprises desired patterns.

### Claim 10 (depends on 8)

The surface treatment method of claim 8, wherein the steps of forming a surface pattern layer on a portion of the heat transferring film facing away from the outer surface by a digital inkjet curable by ultraviolet light further comprises:
controlling a printing head of an ink jet printer to output UV-curable basic inks onto a surface of the first protective layer facing away from the pattern layer, and controlling the ultraviolet lamp to emit ultraviolet light which can solidify the UV-curable basic inks to form the basic layer;
controlling a second printing head of the ink jet printer to output UV-curable color inks onto a surface of the basic layer facing away from the first protective layer, and controlling the ultraviolet lamp to emit ultraviolet light which can solidify the UV-curable color inks to form the printing pattern layer; and
controlling a third printing head of the ink jet printer to output UV-curable glossy inks onto a surface of the printing pattern layer facing away from the basic layer; and
controlling the ultraviolet lamp emit ultraviolet light which can solidify the UV-curable glossy inks to form the second protective layer; wherein the first protective layer and the second protective layer prevent the pattern layer and the printing pattern layer, respectively, from being damaged.