阅读说明：本技术 反光玻璃釉料墨水及用其制作光伏玻璃面板的方法 (Rear reflector glaze ink and the method for making photovoltaic glass panel with it ) 是由 郭冉 于 2019-08-15 设计创作，主要内容包括：本发明公开了一种反光玻璃釉料墨水及用其制作光伏玻璃面板的方法,包括根据预设的图案,采用工业喷墨打印的方法在玻璃背板上喷涂墨水,经固化、加热烘烤使玻璃釉料熔融粘结在玻璃背板上,再按常规光伏组件生产流程制作光伏玻璃面板的步骤。本发明的方法采用非接触式工艺,没有丝网印刷网版的张力变形,图形位置精度高,使得组件面积利用最大化；同时无需针对不同规格尺寸和图案的产品制作不同的网版,而直接通过数码编辑、修改和喷墨打印即可,成本低、效率高。(The invention discloses a kind of rear reflector glaze ink and the methods for making photovoltaic glass panel with it, including according to preset pattern, ink is sprayed in glass back plate using the method that industrial inkjet prints, the step of cured, heated baking makes glass glaze bond vitrified in glass back plate, then routinely photovoltaic module production procedure makes photovoltaic glass panel.Method of the invention uses contactless technique, and the not tension set of screen printing screens, graph position precision is high, so that component area utilizes maximization；It is at low cost, high-efficient simultaneously without the halftone different with the production of pattern for different specification size, and directly by digital editing, modification and inkjet printing.)

1. a kind of rear reflector glaze ink, it is characterised in that be made of following components by weight percentage: glass glaze 3- 15%, nano-coloring material 5-35%, diluent 0-65%, resin 0-55% and additive 0.1-10%.

2. rear reflector glaze ink according to claim 1, it is characterised in that the partial size of the glass glaze 2 μm with Under, Tg point is at 350~650 DEG C.

3. rear reflector glaze ink according to claim 1, it is characterised in that the nano-coloring material is fusing point or divides Solve the white pigment that temperature is higher than 800 DEG C, granularity < 500nm.

4. rear reflector glaze ink according to claim 3, it is characterised in that the nano-coloring material is selected from nano oxygen Change any one of titanium, barium sulfate, zirconium oxide, zinc oxide, zinc sulphide or combination.

5. rear reflector glaze ink according to claim 1, it is characterised in that under photocuring system, the dilution Agent is light-cured acrylic monomer；Or

Under heat cure or photo-thermal dual cure systems, the diluent further includes organic solvent, reactive diluent.

6. rear reflector glaze ink according to claim 1, it is characterised in that the resin is selected from acrylic acid or changes Property acrylic acid oligomer, any one of base polyurethane prepolymer for use as, polyester resin performed polymer or combination.

7. rear reflector glaze ink according to claim 1, it is characterised in that the additive is selected from curing agent, promotees Into any one of agent, levelling agent, dispersing agent, thixotropic agent, surface tension controlling agents, polymerization inhibitor, thickener or plasticizer or group It closes.

8. rear reflector glaze ink according to claim 7, it is characterised in that the curing agent can be light-initiated Agent, enclosed type thermal initiator or resting form thermal curing agents.

9. utilizing the method for the production photovoltaic glass panel of glass glaze ink described in claim 1-8, it is characterised in that including Following steps:

S1 inkjet printing: according to preset pattern, the glass glaze ink is sprayed in glass back plate；

S2 solidifies: the glass glaze ink for using UV to solidify or spray lower than 200 DEG C of bakings with dry or curing schedule S1；

S3 heating: it is heated to be sintered 1~5 minute at 500~800 DEG C, keeps the glass glaze melting adhered in glass back plate；

S4 laminated laying: it is carried out according to the sequence of laminated glass backboard, EVA film, battery strings, busbar, EVA film, glass panel Laminated laying；Wherein, battery strings are accurately placed at the position of uncoated reflective glaze；

S5 component lamination: the photovoltaic glass panel that step S4 is laid is pressed, framed up, is solidified.

10. the method for glass glaze ink production photovoltaic glass panel according to claim 9, it is characterised in that described Ink droplets diameter control in step S1 in 0.2mm hereinafter, and spraying stage ink viscosity in 200cps or less.

Technical field

The present invention relates to solar-photovoltaic technology field, more specifically to a kind of rear reflector glaze ink and it is used The method for making photovoltaic glass panel.

Background technique

Solar energy is as a kind of renewable energy, and in today of economic globalization, the whole mankind is strongly thirsty to the energy and environment It asks, photovoltaic plant installed capacity is also increasing.Currently, renewable energy accounts for about 25% or so of global energy total amount, still has Very huge potentiality.With closing on increasingly for photovoltaic cheap internet access, explosive growth will occur in future.Photovoltaic cheap internet access It needs photovoltaic industry chain upstream and downstream to make joint efforts, on the one hand improves the transfer efficiency of solar battery, component, on the other hand reduce The production cost of each link.For photovoltaic cell, component, it is intended to improve photoelectric conversion efficiency as far as possible, it is more by every means It absorbs, the sunray of hypersorption incidence.This includes battery surface deposition antireflection layer, or reflective in photovoltaic module back side patch Film etc..

When photovoltaic module uses single side list glass component, generally applies one layer of complete reflective membrane at the photovoltaic cell back side, use It does not cover the light of cell area in reflection photovoltaic module, practical light income can be increased in component internal by refraction, from And improve the generated output of component.Such as Chinese patent CN201822240010.9 discloses a kind of photovoltaic module glass, it is described Photovoltaic module has predetermined pattern with glass surface；Film strips will be pasted on the predetermined pattern and the photovoltaic module glass Region it is corresponding, enable the film strips with the predetermined pattern to be covered on the photovoltaic module glass referring to precise positioning On glass.Due to having pre-set pattern according to the predeterminated position of film strips with glass surface in photovoltaic module, exist later Photovoltaic module can directly compare predetermined pattern and judge whether the position attached is correct when pasting film strips with glass surface, so as to timely Adjustment pastes position, finds that film strips paste mistake, optimize production procedure again when avoiding to finished Components, improves product non-defective unit Rate.

With the development of photovoltaic technology, have the double-sided glass component of incident photon-to-electron conversion efficiency transparent two sides, using printing and The reflective glaze of high temperature sintering fills up the spacing between cell piece, equally plays the light that reflection does not cover cell area, can be in group By refraction inside part, increase practical light income purpose.But size of components is generally in 100mm*60mm or more, and the need of each client Ask different, size of components changes frequent occurrence, this just needs to remake different halftones, and the silk-screen printing of the prior art There are problems that the tension set of halftone and be difficult to effectively control the joint filling precision of glaze, while graph position precision is high, operation It is required that high.

Summary of the invention

Technical problem to be solved by the invention is to provide a kind of contactless inkjet printings to make photovoltaic glass panel Method and matched glass glaze ink, directly by way of digital editing, modification and inkjet printing, it is at low cost, It is high-efficient.

In order to achieve the above object, the present invention adopts the following technical scheme that:

A kind of rear reflector glaze ink, it is characterised in that be made of following components by weight percentage: glass glaze 3-15%, nano-coloring material 5-35%, diluent 0-65%, resin 0-55% and additive 0.1-10%.

In a preferred embodiment, the partial size of the glass glaze is at 2 μm hereinafter, glass transition temperature Tg point exists 350~650 DEG C.

In a preferred embodiment, the nano-coloring material is the white that fusing point or decomposition temperature are higher than 800 DEG C Pigment, granularity < 500nm.It is highly preferred that the nano-coloring material is selected from nano-titanium oxide, barium sulfate, zirconium oxide, zinc oxide, sulphur Change any one of zinc or combination.

In a preferred embodiment, under photocuring system, the diluent is light-cured acrylic monomer； Or under heat cure, photo-thermal dual cure systems, the diluent further includes organic solvent, reactive diluent.

In a preferred embodiment, acrylic acid or modified propylene can be selected in resin described under photocuring system Acid oligomer, or under heat cure or photo-thermal dual cure systems, base polyurethane prepolymer for use as, polyester resin performed polymer thermosetting also can be selected Property resin etc..

In a preferred embodiment, the additive is selected from curing agent, promotor, levelling agent, dispersing agent, touching Become any one of agent, surface tension controlling agents, polymerization inhibitor, thickener or plasticizer or combination.It is highly preferred that the solidification Agent also includes enclosed type thermal initiator under heat cure or photo-thermal dual cure systems for photoinitiator under photocuring system Or resting form thermal curing agents.

Another aspect of the present invention utilizes the method for glass glaze ink above-mentioned production photovoltaic glass panel, feature Be the following steps are included:

S1 inkjet printing: according to preset pattern, the glass glaze ink is sprayed in glass back plate；

S2 solidifies: the glass glaze for using UV to solidify or spray lower than 200 DEG C of bakings with dry or curing schedule S1 Ink；

S3 heating: 500~800 DEG C are heated to and is sintered 1~5 minute, keeps the glass glaze melting adhered in glass back plate On；

S4 laminated laying: according to laminated glass backboard, EVA film, battery strings, busbar, EVA film, the sequence of glass panel Carry out laminated laying；Wherein, battery strings are accurately placed at the position of uncoated reflective glaze；

S5 component lamination: the photovoltaic glass panel that step S4 is laid is pressed, framed up, is solidified.

In a preferred embodiment, the ink droplets diameter control in the step S1 in 0.2mm hereinafter, and The viscosity of spraying stage ink is in 200cps or less.

Compared with the prior art, the advantages of the present invention are as follows:

(1) method of inkjet printing of the invention production photovoltaic glass panel, using non-contact inkjet printing technology, no There are problems that screen printing screens tension set, graph position precision is high, so that component area utilizes maximization.

(2) method of inkjet printing of the invention production photovoltaic glass panel, without being directed to different specification size and pattern The different halftone of production, it is at low cost, high-efficient and directly by digital editing, modification and inkjet printing.

(3) method of inkjet printing of the invention production photovoltaic glass panel, by the liquid-drop diameter for controlling ink-jet ink And viscosity and area of computer aided inkjet printing, it can effectively control the joint filling precision of glaze.

Detailed description of the invention

Fig. 1 is the method flow schematic diagram of inkjet printing production photovoltaic glass panel of the invention.

Fig. 2 is the method schematic diagram of inkjet printing production photovoltaic glass panel of the invention.

Wherein, 101 for ink droplet, 102 reflective glaze, 103 glass back plates, 104 battery strings, 105 busbars, 106EVA film, 107 glass panels.

Specific embodiment

Explanation is further spread out to the present invention below with reference to more specific embodiment, it is to be noted that this hair A kind of bright glass glaze ink that can be reflective and this specific group is not limited to the method that it makes photovoltaic glass panel Point or step.For those skilled in the art it will be readily appreciated that, even if the following description content do not make any adjustments or Amendment, can also be directly applied for unspecified other similar composition or processing step herein.

As shown in Figure 1 and Figure 2, the method for inkjet printing of the invention production photovoltaic glass panel, comprising the following steps:

Step S1 inkjet printing: according to preset pattern, the sprayed glass glaze ink on 103 corresponding position of glass back plate (ink droplet) 101；

Wherein, the editor of predetermined pattern and InkJet printing processes can be implemented by using the prior art, and only protect in the present invention Card glass glaze ink droplets (ink droplet 101) diameter control in 0.2mm hereinafter, such as 0.15mm, 0.1mm, 0.05mm, but not limited to this, it will be appreciated by persons skilled in the art that drop diameter is more than that 0.2mm can also be beaten using ink-jet Print the identical photovoltaic glass panel of the technique production present invention, but ink droplet is excessive, precision reduces, may block cell active area or Reduce reflective area.Meanwhile control spraying stage ink viscosity in 200cps hereinafter, such as 185,150,125,100,85 Etc., but not limited to this, if the too high inkjet printing that will cause of viscosity is unsmooth, inefficiency, but do not influence the method for the present invention It realizes.

Wherein, the glass glaze ink is made of following components by weight percentage: glass glaze 3-15%, being received Cream-coloured material 5-35%, diluent 0-65%, resin 0-55% and additive 0.1-10%.Preferably, the glass glaze ink It is made of following components: glass glaze 3-5%, nano-coloring material 10-25%, diluent 10-50%, resin 10-40% and addition Agent 1-5%.

Wherein, glass glaze is selected from conventional transparent powdered glass glaze, it is desirable that its partial size is at 2 μm hereinafter, glass Glass temperature Tg point is at 350~650 DEG C, such as the glass glaze of Jing Gu material Science and Technology Ltd., Foshan City.

White pigment of the nano-coloring material for fusing point or decomposition temperature higher than 800 DEG C, granularity < 500nm, such as selected from Any one of nano-titanium oxide, barium sulfate, zirconium oxide, zinc oxide, zinc sulphide or combination, but not limited to this.The nanometer color When the white pigment of material is powdery, the rear reflector glaze ink must contain diluent and/or resin, i.e., the described diluent And/or the content of resin cannot be 0 simultaneously, such as glass glaze 3-15%, nano-coloring material 5-35%, diluent 5-65%, tree Rouge 0% and additive 0.1-10%；Or glass glaze 3-15%, nano-coloring material 5-35%, diluent 0%, resin 5- 55% and additive 0.1-10%；Or glass glaze 3-15%, nano-coloring material 5-35%, diluent 5-65%, resin 5- 55% and additive 0.1-10%.When the white pigment of the nano-coloring material is slurry, because slurry itself contains part of dilution Agent and/or resin, at this time in addition the rear reflector glaze ink can not add diluent and/or resin, or according to ink Portion of diluent and/or resin is added in the viscosity of water, adjusts its viscosity, i.e., the ingredient of rear reflector glaze ink is glass at this time Glaze 3-15%, nano-coloring material 5-35%, additive 0.1-10%, remaining as diluent and/or resin.

The diluent is slightly different under different curing systems, for example, under photocuring system, the dilution Agent is light-cured acrylic monomer, such as TPGDA, hydroxy-ethyl acrylate, hydroxypropyl acrylate, lauryl acrylate etc., but not It is limited to this；And under heat cure or photo-thermal dual cure systems, in addition to aforementioned light-cured acrylic monomer, in the diluent also Including part organic solvent, reactive diluent etc., common organic solvent for example has dimethylformamide, acetone, butyl card must Alcohol acetate, butyl carbitol etc., reactive diluent are, for example, N- butyl glycidyl ether, phenyl glycidyl ether, AGE, carbon Vinyl acetate etc., but not limited to this.The organic solvent, reactive diluent content be not particularly limited, can guarantee ink Viscosity reaches ink-jetting process requirement, for example, 10-35% of light-cured acrylic monomer dosage, but not limited to this.

The resin is slightly different under different curing systems, for example, the preferred light of resin is solid under photocuring system Change acrylic acid or modified acrylic oligomer, and under heat cure or photo-thermal dual cure systems, also include base polyurethane prepolymer for use as, The thermosetting resin of polyester resin performed polymer.Wherein, the 20- of base polyurethane prepolymer for use as, polyester resin performed polymer thermosetting resin 90% partially or completely substitutes light-cured acrylic or modified acrylic oligomer, but not limited to this.

The additive is selected from curing agent, promotor, levelling agent, dispersing agent, thixotropic agent, surface tension controlling agents, resistance Any one of poly- agent, thickener or plasticizer or combination, such as dibutyl phthalate, trimethyl phosphate, captax, Etc..Wherein, the curing agent is photoinitiator, such as styrax ethers, TPO, EDB, ITX under photocuring system Deng, but not limited to this, or also include enclosed type thermal initiator or resting form thermosetting under heat cure or photo-thermal dual cure systems Agent, such as benzoyl peroxide, polyamide, TPC, cyclohexanone peroxide, azodiisobutyronitrile, isocyanates etc..

Step S2 solidifies: using the glass glaze ink that UV solidifies or lower than 200 DEG C bakings are sprayed with curing schedule S1 Water forms reflective glaze 102；

Step S3 heating: 500~800 DEG C are heated to and is sintered 1~5 minute, keeps the rear reflector glaze 102 melting adhered In glass back plate 103；

Step S4 laminated laying: according to photovoltaic module production method, as shown in Fig. 2, pressing laminated glass backboard 103, EVA film 106, battery strings 104, busbar 105, EVA film 106, the sequence of glass panel 107 carry out laminated laying；Wherein, battery strings are quasi- Really it is placed on the position of uncoated reflective glaze；

Step S5 component lamination: the photovoltaic glass panel that step S4 is laid being pressed, framed up, is solidified, i.e. completion light Lie prostrate production, the assembling of glass panel.

The rear reflector glaze ink and make photovoltaic with it that present invention will be further explained by specific examples below The method of glass panel.