CN104494255B - A kind of minute surface card and preparation method thereof - Google Patents

A kind of minute surface card and preparation method thereof Download PDF

Info

Publication number
CN104494255B
CN104494255B CN201410817237.9A CN201410817237A CN104494255B CN 104494255 B CN104494255 B CN 104494255B CN 201410817237 A CN201410817237 A CN 201410817237A CN 104494255 B CN104494255 B CN 104494255B
Authority
CN
China
Prior art keywords
layer
base oil
minute surface
oil
gold plated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410817237.9A
Other languages
Chinese (zh)
Other versions
CN104494255A (en
Inventor
张泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Tianyu Information Industry Co Ltd
Original Assignee
Wuhan Tianyu Information Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Tianyu Information Industry Co Ltd filed Critical Wuhan Tianyu Information Industry Co Ltd
Priority to CN201410817237.9A priority Critical patent/CN104494255B/en
Publication of CN104494255A publication Critical patent/CN104494255A/en
Application granted granted Critical
Publication of CN104494255B publication Critical patent/CN104494255B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D123/00Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
    • C09D123/02Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D123/04Homopolymers or copolymers of ethene
    • C09D123/08Copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/26Polymeric coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/416Reflective

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

A kind of minute surface card and preparation method thereof; relate to transactional cards preparing technical field; minute surface card includes PVC base layer; and overlap base oil layer thereon, Gold plated Layer and protective layer successively; Gold plated Layer is the solid layer that metallic aluminium is formed; base oil layer is the coating that base oil is formed, and protective layer is the coating that protection oil is formed.In preparation process, on PVC base layer, first it is coated with base oil;Then plated metal aluminum on base oil layer, forms Gold plated Layer;Coating protection oil in Gold plated Layer;Eventually pass other fabrication operations, prepare minute surface card.The minute surface card that the present invention prepares possesses good minute surface reflecting effect, and preparation process is simple.

Description

A kind of minute surface card and preparation method thereof
Technical field
The present invention relates to transactional cards preparing technical field, be specifically related to a kind of minute surface card and preparation thereof Method.
Background technology
At present the most so-called " minute surface card ", it is all to reach reflective by the radium-shine material of adhesion Effect, is such as compressed on gold stamping paper tinsel on PVC base layer by the way of thermoprint, thus shape Become there is the card of reflective mirror effect.The minute surface card but utilizing radium-shine manufacture of materials is to utilize The color reflective effect of gold stamping paper tinsel, the substantially image irradiating object that can only obscure, reach at all Reflecting effect less than minute surface.
Summary of the invention
For defect present in prior art, it is an object of the invention to provide a kind of minute surface card And preparation method thereof, the minute surface card prepared possesses good minute surface reflecting effect, and prepares Journey is simple.
For reaching object above, the present invention adopts the technical scheme that: a kind of minute surface card, including PVC base layer, and overlap base oil layer thereon, Gold plated Layer and protective layer successively, described Gold plated Layer is the solid layer that metallic aluminium is formed, and base oil layer is the coating that base oil is formed, and the described end The base oil of oil reservoir by weight percentage, including component: thermoplastic acrylic 20~30%, second Alkene-acetate ethylene copolymer 10~15%, ethyl ester 20~30%, Ketohexamethylene 10~20%, carbonic acid Calcium 2~5%, plasticizer 1~2%, defoamer 0.1~0.2%, protective layer is that protection oil is formed Coating, and the protection oil of described protective layer is by weight percentage, including component: thermoplasticity third Olefin(e) acid 20~30%, vinyl acetate 10~15%, butyl ester 20~30%, Ketohexamethylene 10~20%, Mute powder 2~5%, levelling agent 0.1~0.2%, defoamer 0.1~0.2%.
A kind of preparation method of minute surface card, including step:
S1. on PVC base layer, base oil it is coated with, at 100~150 DEG C of high temperature, 100~130bar Under condition of high voltage, laminating apparatus is used to coordinate mirror steel plate to carry out lamination treatment so that it is roughness Reach below 0.025 μm, form base oil layer, the base oil of described base oil layer by weight percentage, Including component: thermoplastic acrylic 20~30%, ethylene-vinyl acetate copolymer 10~15%, Ethyl ester 20~30%, Ketohexamethylene 10~20%, calcium carbonate 2~5%, plasticizer 1~2%, froth breaking Agent 0.1~0.2%;
S2. use vacuum plater, make metallic aluminium melt, evaporate, cool down under vacuum It is attached to the surface of base oil layer, forms Gold plated Layer;
S3. at Gold plated Layer surface coating protection oil, dried by infrared drying equipment, formed Protective layer, the protection oil of described protective layer by weight percentage, including component: thermoplasticity third Olefin(e) acid 20~30%, vinyl acetate 10~15%, butyl ester 20~30%, Ketohexamethylene 10~20%, Mute powder 2~5%, levelling agent 0.1~0.2%, defoamer 0.1~0.2%;
The most on the protection layer ink printing, mount film, lamination, die-cut, obtain minute surface card.
The beneficial effects of the present invention is: invention mirror card is different from the radium-shine material conduct of employing The minute surface card of specular layer, uses vacuum plater, at common PVC base layer electroplating surface This specular material of metallic aluminium, make metallic aluminium formed reflecting effect the same with mirror minute surface Layer, it is possible to clearly irradiate the image of object.And by PVC base layer and Gold plated Layer Between be coated with base oil improve between them interlayer attachment, and by Gold plated Layer surface be coated with Cloth protection oil carrys out the mirror effect of protective glass surface layer, it is possible to directly print figure on the protection layer Case, is respectively adopted base oil and protection oil coating, in the premise not changing PVC base layer performance Under, make the card prepared have reflective mirror effect, preparation process is simple, and strengthens card Visual effect and utilitarian function.
Accompanying drawing explanation
Fig. 1 is the structural representation of invention mirror card.
Reference:
1-PVC substrate layer, 2-base oil layer, 3-Gold plated Layer, 4-protective layer.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As it is shown in figure 1, a kind of minute surface card, including PVC base layer 1, and overlap successively Base oil layer 2 thereon, Gold plated Layer 3 and protective layer 4, Gold plated Layer 3 is consolidating that metallic aluminium is formed Body layer, the coating that base oil layer 2 is formed for base oil XBD-Q, protective layer 4 is protection oil XBD-Z The coating formed.
The Gold plated Layer 3 formed due to PVC base layer 1 and plated metal can not be adhered directly to Together, it is therefore necessary between PVC base layer 1 and Gold plated Layer 3 be coated with one layer of coating, with Increase the adhesive force between them.Base oil XBD-Q of base oil layer 2 by weight percentage, Including following components: 20~30% thermoplastic acrylic, for strengthen with PVC base layer 1 and The adhesive force of Gold plated Layer 3;10~15% ethylene-vinyl acetate copolymer (EVA), it is used for strengthening Bonding force with electrodeposited coating;20~30% ethyl ester, for dissolving resin, adjust viscosity and be dried Degree;10~20% Ketohexamethylene, for dissolving resin, adjust viscosity and aridity;2~5% carbonic acid Calcium, for improving the surface roughness of base oil layer 2;1~2% plasticizer, it is used for adjusting base oil The pliability of layer 2;0.1~0.2% defoamer, it is used for solving printing adaptability.Base oil XBD-Q The surface features of PVC base layer 1 can be improved, after base oil XBD-Q film forming, tree therein Fat composition is good to the adhesive force of PVC, and can carry out plated metal directly above, Base oil XBD-Q is mainly used in the interlayer attachment improving between Gold plated Layer 3 and PVC base layer 1.
Owing to the surface of Gold plated Layer 3 is extremely brittle weak, and easily scratch, destroy the reflective effect of specular layer Really, and in order to make bank card, need on card face, print relevant word, pattern, but Common offset printing or silk-screen printing cannot be used in Gold plated Layer 3, therefore increase in Gold plated Layer 3 Add protective layer 4 to be very important.Protection oil XBD-Z, by weight percentage, including Following components: 20~30% thermoplastic acrylic, for strengthening the adhesive force with Gold plated Layer 3; 10~15% vinyl acetate, for strengthening the adhesive force to ink and recoatability;20~30% butyl ester, For dissolving resin, adjust viscosity and aridity;10~20% Ketohexamethylene, for dissolving resin, Adjust viscosity and aridity;2~5% mute powder, for improving the absorbency on Gold plated Layer 3 surface; 0.1~0.2% levelling agent, it is used for solving printing adaptability;0.1~0.2% defoamer, it is used for solving Printing adaptability.The protective layer 4 that protection oil XBD-Z is formed is at the minute surface of protection Gold plated Layer 3 While effect, increase the molecular tension of Gold plated Layer 3, thus improve its surface activity, increase Ink adhesion, can directly print pattern in the Gold plated Layer 3 of coating protection oil 4.
The preparation method of a kind of minute surface card, comprises the following steps:
S1. on PVC base layer 1 be coated with base oil XBD-Q, 100~150 DEG C of high temperature, Under 100~130bar condition of high voltage, laminating apparatus is used to coordinate mirror steel plate to carry out lamination treatment, Make its roughness reach below 0.025 μm, reach the roughness that the attachment of later stage minute surface requires, shape Become base oil layer 2.
S2. use vacuum plater, make metallic aluminium melt, evaporate, cool down under vacuum Being attached to the surface of base oil layer 2, form Gold plated Layer 3, Gold plated Layer 3 is that reflecting effect is good Specular layer.
S3. at Gold plated Layer 3 surface coating protection oil XBD-Z, it is dried by infrared drying equipment After, form protective layer 4.
S4. band matcoveredn 4 Gold plated Layer 3 curing ink printing, mount film, lamination, die-cut, Obtain minute surface card, additionally by different technique, the abnormal shape with mirror effect can be produced The different types of cards such as card, chip card, magnetic stripe card.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, Within these improvements and modifications are also considered as protection scope of the present invention.This specification is not made in detail The content described belongs to prior art known to professional and technical personnel in the field.

Claims (2)

1. a minute surface card, it is characterised in that: include PVC base layer (1), and successively Overlap base oil layer (2) thereon, Gold plated Layer (3) and protective layer (4), described Gold plated Layer (3) The solid layer formed for metallic aluminium, base oil layer (2) is the coating that base oil is formed, and the described end The base oil of oil reservoir (2) by weight percentage, including component: thermoplastic acrylic 20~30%, Ethylene-vinyl acetate copolymer 10~15%, ethyl ester 20~30%, Ketohexamethylene 10~20%, carbon Acid calcium 2~5%, plasticizer 1~2%, defoamer 0.1~0.2%, protective layer (4) is protection oil The coating formed, and the protection oil of described protective layer (4) is by weight percentage, including group Point: thermoplastic acrylic 20~30%, vinyl acetate 10~15%, butyl ester 20~30%, hexamethylene Ketone 10~20%, mute powder 2~5%, levelling agent 0.1~0.2%, defoamer 0.1~0.2%.
2. one kind based on the preparation method of minute surface card described in claim 1, it is characterised in that Including step:
S1. on PVC base layer (1), it is coated with base oil, at 100~150 DEG C of high temperature, 100~130bar Under condition of high voltage, laminating apparatus is used to coordinate mirror steel plate to carry out lamination treatment so that it is roughness Reaching below 0.025 μm, form base oil layer (2), the base oil of described base oil layer (2) is with weight Amount percentages, including component: thermoplastic acrylic 20~30%, ethene-vinyl acetate copolymerization Thing 10~15%, ethyl ester 20~30%, Ketohexamethylene 10~20%, calcium carbonate 2~5%, plasticizer 1~2%, defoamer 0.1~0.2%;
S2. use vacuum plater, make metallic aluminium melt, evaporate, cool down under vacuum It is attached to the surface of base oil layer (2), forms Gold plated Layer (3);
It is S3. at Gold plated Layer (3) surface coating protection oil, dried by infrared drying equipment, Formed protective layer (4), the protection oil of described protective layer (4) by weight percentage, including Component: thermoplastic acrylic 20~30%, vinyl acetate 10~15%, butyl ester 20~30%, ring Hexanone 10~20%, mute powder 2~5%, levelling agent 0.1~0.2%, defoamer 0.1~0.2%;
S4. in protective layer (4) curing ink printing, mount film, lamination, die-cut, obtain minute surface card.
CN201410817237.9A 2014-12-24 2014-12-24 A kind of minute surface card and preparation method thereof Active CN104494255B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410817237.9A CN104494255B (en) 2014-12-24 2014-12-24 A kind of minute surface card and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410817237.9A CN104494255B (en) 2014-12-24 2014-12-24 A kind of minute surface card and preparation method thereof

Publications (2)

Publication Number Publication Date
CN104494255A CN104494255A (en) 2015-04-08
CN104494255B true CN104494255B (en) 2016-09-14

Family

ID=52935747

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410817237.9A Active CN104494255B (en) 2014-12-24 2014-12-24 A kind of minute surface card and preparation method thereof

Country Status (1)

Country Link
CN (1) CN104494255B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104708928B (en) * 2015-04-09 2017-12-15 鸿博股份有限公司 A kind of magnetic card and its printing process
CN109094230A (en) * 2018-07-25 2018-12-28 广州美祺智能印刷有限公司 A kind of color printing method not fallen the effect of ink
CN111113193B (en) * 2019-12-25 2021-05-14 东莞市晶博光电股份有限公司 Glass processing technology without paper folding and sheet separation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3265490B2 (en) * 1993-11-16 2002-03-11 株式会社トーキン Reversible thermosensitive recording medium
CN1432977A (en) * 2002-01-15 2003-07-30 博铼科技股份有限公司 Card forming method capable of producing anti-fake mark
CN2524919Y (en) * 2002-02-09 2002-12-11 福州佳通第一塑料有限公司 PVC aluminium coating film

Also Published As

Publication number Publication date
CN104494255A (en) 2015-04-08

Similar Documents

Publication Publication Date Title
CN106626568B (en) A kind of protective film and preparation method thereof being bonded cambered surface edge
CN106164200B (en) Adhesive sheet and method for producing same
CN104494255B (en) A kind of minute surface card and preparation method thereof
CN105930799B (en) Fingerprint identification module and preparation method thereof
TW201634645A (en) Thermosetting adhesive composition
CN103525332A (en) Hot stamping foil adhesive and application thereof
CN104037185A (en) Photodetector and method for manufacturing the same
JP6921891B2 (en) Package carrier tape base material and its manufacturing method
CN102922840A (en) Laminate
JP2016010947A (en) Method for producing hard coat transfer film, hard coat transfer film and polymer resin plate or polymer resin film having hard coat layer
CN213060733U (en) Protection film suitable for curved surface screen
CN206913813U (en) A kind of curved surface polarisation rupture pressure disc
CN210085349U (en) Protective film applying TPU substrate
JP2014179410A (en) Circuit board for mounting light-emitting component, and light-emitting component mounted circuit board
CN103029331A (en) Method for making adhesive sticker label
CN204097388U (en) A kind of white ultra-thin one-faced tapes
CN202322705U (en) PVC (polyvinyl chloride) protective film
CN205915763U (en) Casing for electronic equipment
JP6912141B2 (en) Adhesive sheet and manufacturing method of adhesive sheet
CN204097391U (en) The ultra-thin one-faced tapes of a kind of black
CN204036983U (en) One can stretch wear-resisting PET cured film
CN203894427U (en) High-brightness wearing-resistant light storage product
CN213060734U (en) Protection film suitable for cambered surface screen
JP6856301B2 (en) Adhesive sheet
CN105611747B (en) It is a kind of improve copper base sink nickel after nickel surface brightness production method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant