CN103192621B - Laser alumite stamping foil with controllable peel strength and preparation method thereof - Google Patents

Abstract

The invention relates to a holographic anti-counterfeit alumite material used in the printing industry, especially to a laser alumite stamping foil with controllable peel strength and a preparation method thereof. The invention provides the laser alumite stamping foil with the advantages of capacity of bearing alumite laser anti-counterfeit information, adjustable peel strength of a coating, high resistance to heat, wear, weather and scratches and suitability for a subsequent procedure of single-plate/seamless molding and the preparation method thereof. The laser alumite stamping foil comprises, by mass, 10 to 15 parts of a thermoplastic hard acrylic resin, 3 to 6 parts of a thermoplastic soft acrylic resin, 1 to 11 parts of cellulose ester, 80 to 95 parts of a solvent and 0.1 to 0.2 part of an auxiliary agent. The laser alumite stamping foil can be directly fed into a machine for coating, thereby realizing energy saving and emission reduction to be realized; the peel strength of the coating is adjusted through changing of the addition amount of cellulose ester, the peel strength is reduced when the usage amount of cellulose ester is increased, and the peel strength is allowed to change in a range of 2 to 15 KN/m; the laser electrochemical aluminum stamping foil can meet requirements on peel strength by different hot stamping substrates and different hot stamping processes and has a wide application scope.

Description

Laser electrochemical aluminum stamping systems that a kind of peeling force is controlled and preparation method thereof

Technical field

The present invention relates to a kind of holographic false proof printing industry anodized aluminium material, particularly controlled laser electrochemical aluminum stamping systems of a kind of peeling force and preparation method thereof.

Background technology

At present, holographic anti-counterfeiting hot stamping film has been widely used in packaging field, with respect to traditional printing technology, beautiful in colour, has innervation, also has antiforge function, for laser electrochemical aluminum production and processing technology, comprises thermoprint, shift, compound, labeling etc., traditional holographic anti-counterfeiting hot stamping film is conventionally by base membrane layer, separating layer, Information Level, aluminium coated and glue-line, yet, along with the fast development of packaging industry, and the generally use of holographic false proof product, the thing of original thermoprint on paper may need thermoprint at cloth now, plastics, on the material of metallic article etc. unlike material, its difference is that soft or hard is different, fineness is different, for the peeling force of blocking film separating layer, also requires difference, so the laser electrochemical aluminum product needed of thermoprint processing has the performance matching with various thermoprint base material, for example, have the laser electrochemical aluminum product matching with paper, there is the laser electrochemical aluminum product matching with plastics, have laser electrochemical aluminum product matching with cloth etc., for the laser electrochemical aluminum product that matches with paper also because of printer's ink layer, surface glazing, the factors such as surface coating and to some extent difference.In addition, adopt different thermoprint modes, as platen, circle, press round gilding technology, also the speed of a motor vehicle of thermoprint processing has been proposed to different requirements, therefore comprehensive above various aspects factor needs laser electrochemical aluminum product to possess different peeling forces to improve the adaptability of laser electrochemical aluminum product.When general anodized aluminium product heating and pressurization thermoprint, rely on separating layer to make coating, aluminium lamination, glue-line rapidly and film disengaging, and be bonded in by the surface of thermoprint object by glue-line, prior art changes to adjust the mode of separating layer concentration the elasticity that anodized aluminium film band is peeled off conventionally.But due to separating layer kind, chemical constitution, membrane formation mechanism difference, more difficult the groping of peeling force relation of the corresponding anodized aluminium film of its concentration band, and be easily subject to the impact of the factors such as coating anilox roll, temperature, make the wet coating amount control difficulty of separating layer coating larger, peeling force is difficult to control.How to make anodized aluminium material possess self fissility with basement membrane, and it is controlled to produce the peeling force size of basement membrane and thermoprint material binding laser electrochemical aluminum, be industry engineers and technicians problems in the urgent need to address, temporarily controlled without a kind of peeling force at present laser electrochemical aluminum stamping systems.

Summary of the invention

The object of this invention is to provide a kind of anodized aluminium laser anti-counterfeiting information of can carrying, possess coating self peeling force adjustable simultaneously, and possess higher heat-resisting, wear-resisting, weather-proof and scoring resistance, be suitable for the laser electrochemical aluminum of single edition, rear road/seamless molded operation stamping systemsand preparation method thereof.

The object of the invention is to complete by the following technical programs:

The laser electrochemical aluminum stamping systems that a kind of peeling force is controlled, comprise: the transfer printing layer being coated with on basement membrane and basement membrane forms, transfer printing layer is followed successively by separating layer from inside to outside by basement membrane one side surface, Information Level, aluminium coated and glue-line, wherein: described separating layer and Information Level are that laser electrochemical aluminum coating material composition is coated on basement membrane at least one deck and forms, laser electrochemical aluminum coating material composition consists of following component: by mass parts: thermoplastic acrylic animi resin 10 mass parts-15 mass parts, thermoplastic acrylic barras 3 mass parts-6 mass parts, cellulose esters 1 mass parts-11 mass parts, solvent 80 mass parts-95 mass parts, auxiliary agent 0.1 mass parts-0.2 mass parts, described thermoplastic acrylic animi resin is the methylmethacrylate copolymer that a kind of softening point is higher, and its softening point is at 110 ℃-130 ℃, and weight average molecular weight is 2.5-5 ten thousand, described thermoplastic acrylic barras is the butyl methacrylate copolymer that a kind of softening point is lower, and its softening point is at 90 ℃-100 ℃, and weight average molecular weight is 8.5-11 ten thousand, described cellulose esters is any one in cellulose-acetate propionate ester, cellulose acetate-butyrate ester, its softening point is at 130 ℃-145 ℃, weight average molecular weight is 2.5-3 ten thousand, wherein the propiono content of cellulose-acetate propionate ester is at 42%-46%, the bytyry of cellulose acetate-butyrate is at 35-39%, and viscosity is at 0.3 s-0.5s, apply described separating layer and Information Level on basement membrane film band after, carry out vacuum aluminum-coated formation aluminium coated, finally apply glue-line and form the controlled laser electrochemical aluminum stamping systems of peeling force.

The laser electrochemical aluminum stamping systems that peeling force of the present invention is controlled, wherein: described solvent comprises the good solvent of acrylic resin and cellulose esters: one or more in butanone, ethyl acetate, butyl acetate, n-propyl acetate, DAA, propylene glycol monobutyl ether.

The laser electrochemical aluminum stamping systems that peeling force of the present invention is controlled, wherein: described auxiliary agent is a kind of polyether-modified dimethyl silicone polymer solution.

The laser electrochemical aluminum stamping systems that peeling force of the present invention is controlled, wherein: according to cellulose esters addition, reach control coating strip force, the increase of fibre resin consumption reduces the peeling force of anodized aluminium, through the follow-up mold pressing gluing of aluminizing, thereby the peeling force that reduces anodized aluminium finished product, preferred cellulose ester consumption is: 1.8 mass parts-6 mass parts.

The present invention prepares the method for the controlled laser electrochemical aluminum stamping systems of described peeling force, wherein: this preparation method comprises the following steps:

(1) by the component of laser electrochemical aluminum coating material, get the raw materials ready: thermoplastic acrylic animi resin, thermoplastic acrylic barras, cellulose esters, solvent, auxiliary agent;

(2) press composition component described solvent is dropped in the reactor with condensing unit, open agitating device, mixed solvent is stirred, be heated to 40 ℃-50 ℃;

(3) thermoplastic acrylic animi resin is dropped in reactor, control mixing speed is 250 rpm-350rpm, and holding temperature is constant in 60 ℃-70 ℃, stirs 1-2h to homogeneous transparent solution;

(4) thermoplastic acrylic barras is dropped in reactor, control mixing speed is 250-350rpm, and holding temperature is constant in 60 ℃-70 ℃, stirs 1h-1.5h to homogeneous transparent solution;

(5) cellulose esters is dropped in reactor, control mixing speed is 300 rpm-400rpm, and holding temperature is constant in 60-70 ℃, stirs 1.5h-2h to homogeneous transparent solution;

(6) auxiliary agent is dropped into reactor, control mixing speed is 200 rpm-250rpm, and holding temperature is constant in 40 ℃-50 ℃, is stirred to colourless or light yellow homogeneous transparent solution;

(7) measure and adjust the solid content of laser electrochemical aluminum coating material and viscosity to theoretical value, theoretical solid content is 16%-20%, and theoretical k value is 20s-25s;

(8) continue to maintain the mixing speed of 200 rpm-250rpm, naturally cool to room temperature to mixed solution, filter discharging, directly go up coating machine and be coated on basement membrane film band;

(9) the basement membrane film band of Coating is sent into mold pressing on moulding press, after the coating patrix extrusion security pattern of basement membrane film band, enters drying machine drying;

(10) the basement membrane film band of having dried is entered to vacuum aluminum-plating machine and carry out vacuum aluminum-coatedly, on basement membrane film band, plate aluminium lamination;

(11) enter again last coating process, obtain the controlled laser electrochemical aluminum stamping systems of a kind of peeling force.

The present invention compared with prior art has following remarkable advantage:

1, the present invention is controlled laser electrochemical aluminum stamping systems of a kind of peeling force and preparation method thereof, and the coating that is available on the machine after its coating material discharging, can directly be coated on basement membrane, also can be coated in separating layer, make the controlled laser electrochemical aluminum stamping systems of peeling force, production efficiency is high, energy-saving and emission-reduction;

2, the controlled laser electrochemical aluminum stamping systems of peeling force of the present invention is the controlled realization of peeling force by coating material, according to the addition of cellulose esters, change to adjust the peeling force of coating, the consumption of increased fiber element ester can reduce peeling force, peeling force is changed within the scope of 2-15KN/m, make laser electrochemical aluminum stamping systems can meet different thermoprint base materials, the needs of different hot stamping process to peeling force;

3, the controlled laser electrochemical aluminum stamping systems subsequent technique adaptability of peeling force of the present invention is good, and single edition/seamless molded functional, without bad phenomenon such as sticky version peelings, coating transparency is high, and security pattern is clear;

4, the controlled laser electrochemical aluminum stamping systems yield rate of peeling force of the present invention is higher, reduces costs, and production stability is good, and product adaptation is wide, and Neng Wei company brings larger economic benefit.

accompanying drawing explanation:

Fig. 1: No. 2 sample peel test force curve maps in the embodiment of the present invention 1;

No. 3 sample peel test force curve maps in Fig. 2 embodiment of the present invention 2;

No. 3 sample peel test force curve maps in Fig. 3 embodiment of the present invention 3;

No. 1 sample peel test force curve map in Fig. 4 embodiment of the present invention 4.

The specific embodiment:

Below in conjunction with specific embodiment, the present invention will be described in detail:

Embodiment 1:

The laser electrochemical aluminum stamping systems that a kind of peeling force of the present invention is controlled, by the configuration raw material of described composition component content requirement: thermoplastic acrylic animi resin 15 mass parts, its vitrification point is 129 ℃, molecular weight is 50,000; Thermoplastic acrylic barras 6 mass parts, its vitrification point is 100 ℃, molecular weight is 110,000; Cellulose esters is cellulose acetate-butyrate ester 11 mass parts, and its vitrification point is 145 ℃, and molecular weight is 30,000; Solvent 95 mass parts, comprising: butanone 50 mass parts, ethyl acetate 40 mass parts, 5 parts of propylene glycol monobutyl ethers; Auxiliary agent 0.2 mass parts; PET polyester film is as basement membrane film band;

Peeling force of the present invention is controlled laser electrochemical aluminum stamping systems preparation method comprise the following steps:

(1) press butanone 50 mass parts, ethyl acetate 40 mass parts, 5 parts of mixing of propylene glycol monobutyl ether drop in the reactor with condensing unit as solvent meter 95 mass parts, open agitating device, and mixed solvent is stirred, and are heated to 50 ℃;

(2) thermoplastic acrylic animi resin 15 mass parts are dropped in reactor, control mixing speed is 350rpm, and holding temperature is constant in 70 ℃, stirs 1h to homogeneous transparent solution;

(3) thermoplastic acrylic barras 6 mass parts are dropped in reactor, control mixing speed is 350rpm, and holding temperature is constant in 70 ℃, stirs 1h to homogeneous transparent solution;

(4) by cellulose esters, be that cellulose acetate-butyrate ester 11 mass parts drop in reactor, control mixing speed is 400rpm, and holding temperature is constant in 70 ℃, stirs 1.5h to homogeneous transparent solution;

(5) auxiliary agent 0.2 mass parts is dropped into reactor, control mixing speed is 250rpm, and holding temperature is constant in 50 ℃, is stirred to colourless or light yellow homogeneous transparent solution;

(6) measure and adjust the solid content of laser electrochemical aluminum coating material and viscosity/to theoretical value, theoretical solid content is 16-20%, theoretical k value is 20-25s;

(7) continue to maintain the mixing speed of 200rpm-250rpm, naturally cool to room temperature to mixed solution, filter discharging, obtain the controlled laser electrochemical aluminum coating material of a kind of peeling force;

(8) the controlled laser electrochemical aluminum coating material of the peeling force preparing is directly gone up to machine, directly be coated on basement membrane film band, can be with PET polyester film as described basement membrane film band, the five joint oven for drying through different temperatures with certain speed, obtain levelability and are well coated with the even compact coating that dry measure is 1.2g/m2 again;

With reference to national standard < < GB/T 2791-1995 adhesive T peeling strength test method flexible materials to flexible material > >, use Nanjing to account for a board, model is M27C, specification is the adhesive tape of 15mm*30m, on FPT-F1 type coefficient of friction/peeling tester, coating is carried out to the mensuration of T peel strength, the preparation of test sample: take off long 200mm from coated film band, the sample of wide 25 ± 0.5mm, coat side makes progress on the smooth glass plate that is positioned over level, get smooth the sticking on sample of the about 150mm of adhesive tape, press the hand-held pressure roller of YGJ-2000 standard (weight: 2000g ± 50g) along the horizontal push-and-pull of bonding plane direction three times, sample is fixed on stripping machine, speed with 300mm/min is tested, parallel sampling is averaged after measuring for three times,

(9) the basement membrane film band of Coating is sent into mold pressing on moulding press, its moldability is good, security pattern is clear, enter on vacuum aluminum-plating machine aluminize, last coating process all constructs normally, coating performance is good, and the controlled laser electrochemical aluminum stamping systems finished product bronzing effect on cork paper of peeling force is good.

The peeling force testing result of embodiment 1 is: Numbering 1 2 3 Mean value Peeling force (KN/m) 2.5 2.9 2.0 2.5

Typical case's test curve as shown in Figure 1, is No. 2 sample peel test force curves (average peel strength 2.9KN/m) in embodiment 1.

The preparation method of the gold stamping paper tinsel of laser electrochemical aluminum that peeling force of the present invention is controlled, wherein: the peeling force size described in described step (8) is adjusted by the addition of cellulose esters, the increase of fibre resin consumption can reduce the peeling force of anodized aluminium coating, through the follow-up mold pressing gluing of aluminizing, thereby reduce the peeling force of anodized aluminium finished product.

Embodiment 2:

The gold stamping paper tinsel of laser electrochemical aluminum that peeling force is controlled, by the configuration of described composition component content requirement: thermoplastic acrylic animi resin 10 mass parts, its vitrification point is 110 ℃, molecular weight is 2.5 ten thousand; Thermoplastic acrylic barras 3 mass parts, its vitrification point is 90 ℃, molecular weight is 8.7 ten thousand; Cellulose esters is cellulose acetate-butyrate ester 1 mass parts, and its vitrification point is 132 ℃, and molecular weight is 2.5 ten thousand; Solvent 80 mass parts, comprise 10 parts of butanone 40 mass parts, butyl acetate 30 mass parts, DAA; Auxiliary agent 0.1 mass parts; PET polyester film is as basement membrane film band;

The preparation method of the gold stamping paper tinsel of laser electrochemical aluminum that peeling force of the present invention is controlled comprises the following steps:

(1) press butanone 40 mass parts, butyl acetate 30 mass parts, 10 parts of mixing of DAA drop in the reactor with condensing unit as solvent meter 80 mass parts, open agitating device, and mixed solvent is stirred, and are heated to 40 ℃;

(2) thermoplastic acrylic animi resin 10 mass parts are dropped in reactor, control mixing speed is 250rpm, and holding temperature is constant in 60 ℃, stirs 2h to homogeneous transparent solution;

(3) thermoplastic acrylic barras 3 mass parts are dropped in reactor, control mixing speed is 250rpm, and holding temperature is constant in 60 ℃, stirs 1.5h to homogeneous transparent solution;

(4) by cellulose esters, be that cellulose acetate-butyrate ester 1 mass parts drops in reactor, control mixing speed is 300rpm, and holding temperature is constant in 60 ℃, stirs 2h to homogeneous transparent solution;

(5) auxiliary agent 0.1 mass parts is dropped into reactor, control mixing speed is 250rpm, and holding temperature is constant in 50 ℃, is stirred to colourless or light yellow homogeneous transparent solution;

(6) measure and adjust the solid content of laser electrochemical aluminum coating material and viscosity/to theoretical value, theoretical solid content is 16%-20%, theoretical k value is 20s-25s;

(7) continue to maintain the mixing speed of 200-250rpm, naturally cool to room temperature to mixed solution, filter discharging, obtain the controlled laser electrochemical aluminum coating material of a kind of peeling force;

(8) the controlled laser electrochemical aluminum coating material of the peeling force preparing is directly gone up to coating machine, be coated on basement membrane film band PET polyester film, on basement membrane film band, be coated with described separating layer and Information Level, or separating layer and Information Level are merged into one-time formed one deck coating, the five joint oven for drying through different temperatures with certain speed, obtain levelability and are well coated with the coating that dry measure is the even compact of 1.1g/m2 again;

(9) the basement membrane film band of Coating is sent into mold pressing procedure, its moldability is good, and security pattern is clear, then aluminizes and last coating process construction through vacuum aluminum-plating machine, forms the controlled laser electrochemical aluminum of peeling force stamping systems,the controlled laser electrochemical aluminum finished product of peeling force of the present invention is good at the paper surface hot stamping effects of oil polish.

The peeling force testing result of embodiment 2 is: Numbering 1 2 3 Mean value Peeling force (KN/m) 13.9 15.1 13.7 14.2

Typical case's test curve as shown in Figure 2, is No. 3 sample peel test force curves (average peel strength 13.7KN/m) in embodiment 2.

Embodiment 3:

The gold stamping paper tinsel of laser electrochemical aluminum that peeling force is controlled, configures by described composition component content requirement: thermoplastic acrylic animi resin 12 mass parts, and its vitrification point is 115 ℃, molecular weight is 30,000; Thermoplastic acrylic barras 3.5 mass parts, its vitrification point is 96 ℃, molecular weight is 100,000; Cellulose acetate-butyrate ester 1.8 mass parts, its vitrification point is 132 ℃, molecular weight is 2.8 ten thousand; Solvent 85 mass parts, comprise butanone 35 mass parts, n-propyl acetate 30 mass parts, 20 parts of propylene glycol monobutyl ethers; Auxiliary agent 0.15 mass parts; PET polyester film is as basement membrane film band;

The preparation method of the gold stamping paper tinsel of laser electrochemical aluminum that peeling force of the present invention is controlled comprises the following steps:

(1) press butanone 35 mass parts, n-propyl acetate 30 mass parts, 20 parts of mixing of propylene glycol monobutyl ether drop in the reactor with condensing unit as solvent meter 85 mass parts, open agitating device, and mixed solvent is stirred, and are heated to 45 ℃;

(2) thermoplastic acrylic animi resin 12 mass parts are dropped in reactor, control mixing speed is 300rpm, and holding temperature is constant in 65 ℃, stirs 1.5h to homogeneous transparent solution;

(3) thermoplastic acrylic barras 3.5 mass parts are dropped in reactor, control mixing speed is 300rpm, and holding temperature is constant in 65 ℃, stirs 1.5h to homogeneous transparent solution;

(4) by cellulose esters, be that cellulose acetate-butyrate ester 1.8 mass parts drop in reactor, control mixing speed is 350rpm, and holding temperature is constant in 65 ℃, stirs 2h to homogeneous transparent solution;

(5) auxiliary agent 0.15 mass parts is dropped into reactor, control mixing speed is 250rpm, and holding temperature is constant in 50 ℃, is stirred to colourless or light yellow homogeneous transparent solution;

(6) measure and adjust the solid content of laser electrochemical aluminum coating material and viscosity/to theoretical value, theoretical solid content is 16%-20%, theoretical k value is 20-25s;

(7) continue to maintain the mixing speed of 200rpm-250rpm, naturally cool to room temperature to mixed solution, filter discharging, obtain the controlled laser electrochemical aluminum coating material of a kind of peeling force;

(8) coating material preparing is directly gone up to machine, be coated on PET polyester film as on basement membrane film band, the five joint oven for drying with certain speed through different temperatures, obtain levelability and are well coated with the even compact coating that dry measure is 1.2g/m2;

(9) the film band of Coating is sent into mold pressing procedure, its moldability is good, and security pattern is clear, and aluminize in rear road, coating process construction is normal, and coating performance is good.The controlled gold stamping paper tinsel finished product of the laser electrochemical aluminum hot stamping effects on composite paper of peeling force is good.

The peeling force testing result of embodiment 3 is: Numbering 1 2 3 Mean value Peeling force (KN/m) 9.7 7.5 8.8 8.7

Typical case's test curve as shown in Figure 3, is No. 3 sample peel test force curves (average peel strength 8.8KN/m) in embodiment 3.

Embodiment 4:

The gold stamping paper tinsel of laser electrochemical aluminum that a kind of peeling force of the present invention is controlled, configures by described composition component content requirement: thermoplastic acrylic animi resin 13 mass parts, and its vitrification point is 120 ℃, molecular weight is 4.5 ten thousand; Thermoplastic acrylic barras 5 mass parts, its vitrification point is 96 ℃, molecular weight is 90,000; Cellulose acetate-butyrate ester 6 mass parts, its vitrification point is 142 ℃, molecular weight is 2.8 ten thousand; Solvent 90 mass parts, comprise butanone 45 mass parts, butyl acetate 30 mass parts, 15 parts of propylene glycol monobutyl ethers; Auxiliary agent 0.18 mass parts; PET polyester film is as basement membrane film band;

Peeling force of the present invention is the controlled gold stamping paper tinsel preparation method of laser electrochemical aluminum comprise the following steps:

(1) press butanone 45 mass parts, butyl acetate 30 mass parts, 10 parts of mixing of propylene glycol monobutyl ether drop in the reactor with condensing unit as solvent meter 85 mass parts, open agitating device, and mixed solvent is stirred, and are heated to 45 ℃;

(2) thermoplastic acrylic animi resin 13 mass parts are dropped in reactor, control mixing speed is 350rpm, and holding temperature is constant in 70 ℃, stirs 2h to homogeneous transparent solution;

(3) thermoplastic acrylic barras 5 mass parts are dropped in reactor, control mixing speed is 350rpm, and holding temperature is constant in 70 ℃, stirs 1h to homogeneous transparent solution;

(4) by cellulose esters, be that cellulose acetate-butyrate ester 6 mass parts drop in reactor, control mixing speed is 350rpm, and holding temperature is constant in 70 ℃, stirs 1.5h to homogeneous transparent solution;

(5) auxiliary agent 0.15 mass parts is dropped into reactor, control mixing speed is 250rpm, and holding temperature is constant in 50 ℃, is stirred to colourless or light yellow homogeneous transparent solution;

(6) measure and adjust the solid content of laser electrochemical aluminum coating material and viscosity/to theoretical value, theoretical solid content is 16%-20%, theoretical k value is 20s-25s;

(7) continue to maintain the mixing speed of 200rpm-250rpm, naturally cool to room temperature to mixed solution, filter discharging, obtain the controlled laser electrochemical aluminum coating material of a kind of peeling force;

(8) the controlled laser electrochemical aluminum coating material of the peeling force preparing is directly gone up to coating machine, be coated on PET polyester film, the five joint oven for drying with certain speed through different temperatures, obtain levelability and are well coated with the even compact coating that dry measure is 1.3g/m2;

(9) the film band of Coating is sent into mold pressing procedure, its moldability is good, and security pattern is clear, and aluminize in rear road, coating process construction is normal, and coating performance is good.In the controlled laser electrochemical aluminum finished product Yuan Ya garden hot stamping process of peeling force of the present invention, effect is good.

The peeling force testing result of embodiment 4 is: Numbering 1 2 3 Mean value Peeling force (KN/m) 4.5 3.9 4.2 4.2

Typical case's test curve as shown in Figure 4, is No. 1 sample peel test force curve (average peel strength 4.5KN/m) in embodiment 4.

Auxiliary agent of the present invention is a kind of polyether-modified dimethyl silicone polymer solution, for reducing the surface tension of coating material, and improves the levelling effect of coating.

A kind of laser electrochemical aluminum stamping systems of the present invention; wherein: the variation of cellulose esters addition; can reach the size of controlling coating strip force; the cellulose esters increasing in composition brings more propiono/bytyry; the extension of its chain can reduce the intersegmental attraction of resinous polymer chain, the stripping power that rises while reducing adhesive tape test stripping performance, and good pliability can be provided; avoid coating embrittlement at low temperatures, give the combination property that laser electrochemical aluminum coating material is good.

The invention provides controllable laser electrochemical aluminum stamping systems of a kind of peeling force and preparation method thereof, by a graded, solvent, resin and auxiliary agent are dropped in reactor, control solid content and viscosity, obtain directly going up the coating material of machine coating, by changing the mass fraction of cellulose esters, the peeling force that can control this coating material changes within the scope of 2-15KN/m, finally make finished product anodized aluminium there is difference and peel off elasticity, can meet different thermoprint paper and the instructions for use of the thermoprint speed of a motor vehicle to anodized aluminium.

Described separating layer and Information Level can be one-time formed, on basement membrane film band, be coated with one deck coating, its anti-counterfeiting information is directly embossed in this coating; Also can be that separating layer and Information Level are coated with respectively and are first coated with one deck separating layer, then be coated with one deck Information Level, mold pressing anti-counterfeiting pattern information structure Information Level on Information Level; The present invention can make and once be coated with the controllable laser electrochemical aluminum stamping systems of one-time formed peeling force, also separating layer and Information Level can be coated with respectively, first be coated with one deck separating layer, be coated with again one deck Information Level, mold pressing anti-counterfeiting pattern information on Information Level, makes the controllable laser electrochemical aluminum stamping systems of peeling force.

Claims (6)

1. the laser electrochemical aluminum stamping systems that peeling force is controlled, comprise: the transfer printing layer being coated with on basement membrane and basement membrane forms, transfer printing layer is followed successively by separating layer from inside to outside by basement membrane one side surface, Information Level, aluminium coated and glue-line, it is characterized in that: described separating layer and Information Level are that laser electrochemical aluminum coating material composition is coated on basement membrane at least one deck and forms, laser electrochemical aluminum coating material composition consists of following component: by mass parts: thermoplastic acrylic animi resin 10 mass parts-15 mass parts, thermoplastic acrylic barras 3 mass parts-6 mass parts, cellulose esters 1 mass parts-11 mass parts, solvent 80 mass parts-95 mass parts, auxiliary agent 0.1 mass parts-0.2 mass parts, described thermoplastic acrylic animi resin is the methylmethacrylate copolymer that a kind of softening point is higher, and its softening point is at 110 ℃-130 ℃, and weight average molecular weight is 2.5-5 ten thousand, described thermoplastic acrylic barras is the butyl methacrylate copolymer that a kind of softening point is lower, and its softening point is at 90 ℃-100 ℃, and weight average divides

Son amount is 8.5-11 ten thousand; Described cellulose esters is any one in cellulose-acetate propionate ester, cellulose acetate-butyrate ester, its softening point is at 130 ℃-145 ℃, weight average molecular weight is 2.5-3 ten thousand, wherein the propiono content of cellulose-acetate propionate ester is at 42%-46%, the bytyry of cellulose acetate-butyrate is at 35-39%, and viscosity is at 0.3 s-0.5s; Be coated with described separating layer and Information Level on basement membrane film band after, carry out mold pressing and vacuum aluminum-coated formation aluminium coated, finally apply glue-line and form the controlled laser electrochemical aluminum stamping systems of peeling force.

2. the laser electrochemical aluminum stamping systems controlled according to the peeling force described in claim 1, is characterized in that: described solvent comprises the good solvent of acrylic resin and cellulose esters: one or more in butanone, ethyl acetate, butyl acetate, n-propyl acetate, DAA, propylene glycol monobutyl ether.

3. the laser electrochemical aluminum stamping systems controlled according to the peeling force described in claim 1, is characterized in that: described auxiliary agent is a kind of polyether-modified dimethyl silicone polymer solution.

4. the laser electrochemical aluminum stamping systems controlled according to the peeling force described in claim 1, it is characterized in that: according to cellulose esters addition, reach control coating strip force, the increase of fibre resin consumption reduces the peeling force of anodized aluminium, through the follow-up mold pressing gluing of aluminizing, thereby the peeling force that reduces anodized aluminium finished product, cellulose esters consumption is: 1.8 mass parts-6 mass parts.

5. the laser electrochemical aluminum stamping systems controlled according to the peeling force described in claim 1, is characterized in that: described separating layer and Information Level be one-time formed, on basement membrane film band, be coated with one deck coating, its anti-counterfeiting information is directly embossed in this coating.

6. the method for the controlled laser electrochemical aluminum stamping systems of the peeling force of preparation described in claim 1, is characterized in that: this preparation method comprises the following steps:

(1) by the component of laser electrochemical aluminum coating material, get the raw materials ready: thermoplastic acrylic animi resin, thermoplastic acrylic barras, cellulose esters, solvent, auxiliary agent;

(2) press composition component described solvent is dropped in the reactor with condensing unit, open agitating device, mixed solvent is stirred, be heated to 40 ℃-50 ℃;

(3) thermoplastic acrylic animi resin is dropped in reactor, control mixing speed is 250 rpm-350rpm, and holding temperature is constant in 60 ℃-70 ℃, stirs 1-2h to homogeneous transparent solution;

(4) thermoplastic acrylic barras is dropped in reactor, control mixing speed is 250-350rpm, and holding temperature is constant in 60 ℃-70 ℃, stirs 1h-1.5h to homogeneous transparent solution;

(5) cellulose esters is dropped in reactor, control mixing speed is 300 rpm-400rpm, and holding temperature is constant in 60-70 ℃, stirs 1.5h-2h to homogeneous transparent solution;

(6) auxiliary agent is dropped into reactor, control mixing speed is 200 rpm-250rpm, holding temperature constant

40 ℃-50 ℃, be stirred to colourless or light yellow homogeneous transparent solution;

(7) measure and adjust the solid content of laser electrochemical aluminum coating material and viscosity to theoretical value, theoretical solid content is

16%-20%, theoretical k value is 20s-25s;

(8) continue to maintain the mixing speed of 200 rpm-250rpm, naturally cool to room temperature to mixed solution, filter discharging, directly go up coating machine and be coated on basement membrane film band;

(9) the basement membrane film band of Coating is sent into mold pressing on moulding press, after the coating patrix extrusion security pattern of basement membrane film band, enters drying machine drying;

(10) the basement membrane film band of having dried is entered to vacuum aluminum-plating machine and carry out vacuum aluminum-coatedly, on basement membrane film band, plate aluminium lamination;

(11) enter again last coating process, obtain the controlled laser electrochemical aluminum stamping systems of a kind of peeling force.