CN102643617A - Ultraviolet radiation based bonding process for EVA (ethylene vinyl acetate) hot melt adhesive on decorative edge bands - Google Patents
Ultraviolet radiation based bonding process for EVA (ethylene vinyl acetate) hot melt adhesive on decorative edge bands Download PDFInfo
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- CN102643617A CN102643617A CN2012101190875A CN201210119087A CN102643617A CN 102643617 A CN102643617 A CN 102643617A CN 2012101190875 A CN2012101190875 A CN 2012101190875A CN 201210119087 A CN201210119087 A CN 201210119087A CN 102643617 A CN102643617 A CN 102643617A
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- edge sealing
- hot melt
- melt adhesive
- sealing bar
- edge band
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Abstract
An ultraviolet radiation based bonding process for EVA (ethylene vinyl acetate) hot melt adhesive on decorative edge bands belongs to the field of machining process. The process includes an edge band making process and an edge band bonding process, the edge band making process refers to coating EVA hot melt adhesive to an edge band, the edge band bonding process refers to gluing the edge band to the section of a board, and a base of the low-cost edge band is subjected to surface treatment and coating of the low-cost EVA hot melt adhesive in the edge band making process. Irradiating hot melt adhesive in the edge band bonding process by semiconductor laser replaces use of a hot melt adhesive heating device. By the bonding process, the strength of adhesion between the edge band and the board is improved, edge sealing is quickened, seamless adhesion of the edge band with the board is achieved, and beautification is achieved.
Description
Technical field
The present invention relates to a kind of evenly putting down and stick on the technique for sticking scheme of decorating on the edge sealing bar, belong to the mechanical processing technique field about edge sealing hot melt adhesive.
Background technology
The edge sealing bar is to be main raw material with the polyvinyl chloride, adds auxiliary agents such as softening agent, stablizer, lubricant, dyestuff, the thermoplastic coiled material that mixing together compacting forms.There are decorative patterns such as wood grain, marble, woven design, pattern in its surface, and surface luster is soft simultaneously, has the sense of reality and the stereoscopic sensation of timber; Have certain smooth finish and ornamental, have certain heat-resisting, chemicals-resistant, erosion resistance, surface certain rigidity is arranged.The major function of edge sealing bar is that the sheet material section is carried out solid envelope, reaches the unfavorable factor of avoiding in environment and the use (being mainly moisture) destruction of sheet material and the formaldehyde of prevention sheet material inside are volatilized, and reaches the effect of decoration simultaneously.
The technique for sticking of common decoration edge sealing bar carries out traditional hot-work to solid gums appearance, and complex process and cost are high, when edge sealing, also will be useful on to be coated with daub and to control the setting that is coated with the daub amount.To the selection of edge sealing hot melt adhesive, the hot melt adhesive that is based on HMPU (Polyurethane) that domestic performance is best, it can guarantee the edge sealing of high quality sheet material, but price is more expensive.Generally adopt the edge sealing hot melt adhesive production technology based on the common, inexpensive of EVA (ethene-vinyl acetate copolymer resins) at present, its main limitation is that resistance toheat is relatively poor.Decorate the edge sealing bar bonding before, to gluing of surfaces handle be decorate at present that the edge sealing bar uses must be through technology.Traditional technology is generally used ecological disagreeableness conventional chemical and grinding processing method.Because the thickness of bonding layer of chemical substances is big and yellowing; On the edge of decorating the edge sealing bar; Because of can making layer of chemical substances, wearing and tearing expose; Add in use to contact, between material cross section and decoration edge sealing bar, form " seam " of a dark color, had a strong impact on and used the quality and the selling price of decorating edge sealing bar product with dirt.If utilize the UV radiating system for SE in advance, low-energy surface materials such as ABS carry out the pre-treatment in early stage, can improve the cementability of low-energy surface base material greatly.Could not adopt the polyurethane adhesive system of the costliness that is used for low-energy surface.Simultaneously; Employing sticks on before dispatching from the factory on the edge sealing bar based on EVA (ethene-vinyl acetate copolymer resins) common, inexpensive and the bright edge sealing hot melt adhesive of full impregnated in advance, the edge sealing scene with laser to edge sealing on existing glue carry out hydrothermal solutionization; Between the slit of the bonding sheet material of trickling infiltration, realize seamless adhesion.Sizing agent shearing resistance ratio is untreated and improves 200%-600% after UV radiant light (laser) surface treatment, improves 100-200% than ordinary method, and consistent with expected results, the thermoplastic composite uptake factor is the highest, and effect is best.Except that metamorphosis, the formation and the elimination of chemical transformation, particularly oxygen also takes place in the bond of UV laser treatment after the laser treatment and since the carbonic acid key break to form hydroxyl and carboxyl, polycarbonate surface polarity strengthens or the like.
Therefore; Low-energy surface is because UV radiant light (laser) surface treatment; Its adhesiveproperties is significantly improved, can not adopt to be used for expensive polyurethane adhesive system, and can adopt edge sealing hot melt adhesive production technology based on the common, inexpensive of EVA (ethene-vinyl acetate copolymer resins).
With Injecatable EVA Copolymer (EVA) is main raw; The bright hot melt adhesive of full impregnated of the solid type tackiness agent that adding tackifier and other components matching form has: toxicological harmless, easy to operate, and using does not continuously have the charing phenomenon to have quick-binding, and intensity is high; Ageing-resistant; Toxicological harmless, Heat stability is good, characteristics such as glued membrane toughness.If be optimized research, can make 120 ℃ of its softening temperatures, shearing resistance reaches 7-8MPa, and stripping strength reaches 120-150N/cm, and water-intake rate is less than 3%, use temperature: 160 ℃-180 ℃ and set time: 8-10 second.
For use temperature be 160 ℃-180 ℃ be set time 8-10 second with the hot melt adhesive that evenly sticks in advance on the edge sealing bar, 50 watts of semiconductor laser beams are easy to realize, the bright edge sealing hot melt adhesive of full impregnated carry out hydrothermal solutionizations.At this moment mobile big and transparent hydrothermal solution glue is easy to infiltrate wood veneer end face slit.Under certain pressure, can become corresponding " convex-concave " with the concavo-convex row in the sheet cross section, form the vision present situation of " no seam ".
Summary of the invention
To achieve these goals; The present invention provides a kind of technique for sticking of EVA hot melt adhesive on decoration edge sealing bar based on uv-radiation; Through to base material pre-treatment of edge sealing bar and the liquefaction of employing LASER HEAT, improve the bonding strength between edge sealing bar and the sheet material, accelerate edge sealing efficient; And accomplish the seamless binding between edge sealing bar and the sheet material, reach the effect of beautifying.
To achieve these goals, the present invention adopts following technical scheme,
The one, edge sealing bar manufacture craft:
1) with said edge sealing bar process uv-radiation, carries out bonding front surface and handle and surface-treated;
2) stick on the edge sealing bar the EVA hot melt adhesive is flat;
Can be used as EVA hot melt adhesive edge sealing bar finished product this moment.
The 2nd, edge sealing bar barbola work:
1) with laser beam the EVA hot melt adhesive carry out hydrothermal solutionization;
2) with heating-pressurizing device with gluing after the section of edge sealing bar and said sheet glue together;
3) carry out ambient cure.
Thereby the edge sealing bar is glued at the section part of sheet material.
As preferably, said laser beam adopts 50-200 watt of semiconductor laser beam, can simplify heating installation, reduces heating cost, improves safety, security, the ease for operation of heating simultaneously.
As preferably, it is laser or the deuterium lamp of 193nm that said uv-radiation adopts wavelength, all is to obtain equipment easily.
As preferably, said heating-pressurizing device adopts MD627 automatic linear bag sealer autosizing system.
As preferably, said edge sealing strip adoption SE or ABS base material can reduce the cost of edge sealing bar.
Comparing technology of the present invention with conventional machining process can make all free edge of sheet material can both process and realize invisible transition; Because glue is evenly to stick in advance on the edge sealing bar; Temperature is provided by laser radiation; Therefore be used to be coated with the equipment that daub and control are coated with the daub amount, the equipment that temperature is provided is needs no longer, have simplified the equipment setting of processing site.One step of this technology key is to utilize uv radiation system for SE; The edge sealing strip material of low-energy surfaces such as ABS carries out the pre-treatment in early stage; Improve the bonding strength of low-energy surface base material greatly, thereby can use cheap hot melt adhesive and need not use expensive polyurethane adhesive.
Description of drawings
Fig. 1 is the work synoptic diagram of employed various devices in the edge sealing process of the present invention.
Among the figure, 1. want the sheet material of edge sealing, 2. workplatform, 3. heating-pressurizing device, 4.100 watts of semiconductor lasers.
Embodiment
Below in conjunction with accompanying drawing the embodiment among the present invention is specifically described.
In the present embodiment, edge sealing strip adoption SE or ABS base material use wavelength to surpass the light source irradiation of 6.6eV as 193nm laser or wavelength as 180-200nm deuterium lamp, energy intensity, carry out surface treatment and surface-treated before bonding; On the edge sealing bar, apply the EVA hot melt adhesive, form the EVA hot melt adhesive edge sealing bar of finished product.
When carrying out the sheet material edge sealing, with the light beam irradiates EVA hot melt adhesive of 100 watts of semiconductor lasers 4, exposure intensity and irradiation time need field experiment as the case may be to set, and 100 watts of semiconductor laser irradiation times are no more than 5 seconds in the present embodiment; With heating-pressurizing device 3 section of the sheet material of wanting edge sealing 1 on the workplatform 2 and the EVA hot melt adhesive edge sealing bar of hydrothermal solutionization are pressed together then, make glue infiltrate the slit of sheet material; Carry out ambient cure then, realize the seamless binding at edge sealing place.
Present embodiment adopts MD627 automatic linear bag sealer autosizing system, and this system comprises workplatform 2, heating-pressurizing device 3, sizer.
Claims (5)
- Based on the EVA hot melt adhesive of uv-radiation at the technique for sticking of decorating on the edge sealing bar; This technology is divided into the EVA hot melt adhesive is coated in the edge sealing bar manufacture craft on the edge sealing bar; And the edge sealing bar barbola work that the edge sealing bar is glued at the section part of sheet material; Wherein, the concrete steps of edge sealing bar manufacture craft are:A) with said edge sealing bar process uv-radiation, carry out bonding front surface and handle and surface-treated;B) stick on the edge sealing bar the EVA hot melt adhesive is flat;The concrete steps of edge sealing bar barbola work are:1) with laser beam the EVA hot melt adhesive on the edge sealing bar carry out hydrothermal solutionization;2) with heating-pressurizing device with gluing after the section of edge sealing bar and said sheet glue together;3) carry out ambient cure.
- 2. the technique for sticking of EVA hot melt adhesive on decoration edge sealing bar based on uv-radiation as claimed in claim 1, it is characterized in that: said laser beam adopts 50-200 watt of semiconductor laser beam.
- According to claim 1 or claim 2 based on the EVA hot melt adhesive of uv-radiation at the technique for sticking of decorating on the edge sealing bar, it is characterized in that: it is laser or the deuterium lamp of 193nm that said uv-radiation adopts wavelength.
- According to claim 1 or claim 2 based on the EVA hot melt adhesive of uv-radiation at the technique for sticking of decorating on the edge sealing bar, it is characterized in that: said heating-pressurizing device adopts MD627 automatic linear bag sealer autosizing system.
- According to claim 1 or claim 2 based on the EVA hot melt adhesive of uv-radiation at the technique for sticking of decorating on the edge sealing bar, it is characterized in that: said edge sealing strip adoption SE or ABS base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101190875A CN102643617A (en) | 2012-04-20 | 2012-04-20 | Ultraviolet radiation based bonding process for EVA (ethylene vinyl acetate) hot melt adhesive on decorative edge bands |
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| CN2012101190875A CN102643617A (en) | 2012-04-20 | 2012-04-20 | Ultraviolet radiation based bonding process for EVA (ethylene vinyl acetate) hot melt adhesive on decorative edge bands |
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| CN2012101190875A Pending CN102643617A (en) | 2012-04-20 | 2012-04-20 | Ultraviolet radiation based bonding process for EVA (ethylene vinyl acetate) hot melt adhesive on decorative edge bands |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101281A (en) * | 2013-01-31 | 2013-05-15 | 北京工业大学 | Laser square light spot thermal radiation-based process for adhering EVA (Ethylene-Vinyl Acetate) hot melt adhesive on decorative edge band |
| CN104139445A (en) * | 2014-07-24 | 2014-11-12 | 江苏名乐地板有限公司 | Manufacturing method of formaldehyde-free gluing indoor plywood or floor base material |
| CN108752849A (en) * | 2018-06-26 | 2018-11-06 | 浙江威思康塑胶有限公司 | A kind of edge band and its production method of organic silicon material |
| CN111484805A (en) * | 2020-04-17 | 2020-08-04 | 大族激光科技产业集团股份有限公司 | Bonding method of non-metal material |
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| CN1789362A (en) * | 2005-12-28 | 2006-06-21 | 上海应用技术学院 | One-step preparation process of organic-montmorillonite modified ethylene-vinyl acetate hot-melt adhesive |
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| CN1789362A (en) * | 2005-12-28 | 2006-06-21 | 上海应用技术学院 | One-step preparation process of organic-montmorillonite modified ethylene-vinyl acetate hot-melt adhesive |
| CN101200621A (en) * | 2006-12-13 | 2008-06-18 | 南宝树脂化学工厂股份有限公司 | Bonding method of adhesive technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101281A (en) * | 2013-01-31 | 2013-05-15 | 北京工业大学 | Laser square light spot thermal radiation-based process for adhering EVA (Ethylene-Vinyl Acetate) hot melt adhesive on decorative edge band |
| CN104139445A (en) * | 2014-07-24 | 2014-11-12 | 江苏名乐地板有限公司 | Manufacturing method of formaldehyde-free gluing indoor plywood or floor base material |
| CN104139445B (en) * | 2014-07-24 | 2016-04-13 | 江苏名乐地板有限公司 | The manufacture method of indoor glued board or floor base material is glued together without aldehyde |
| CN108752849A (en) * | 2018-06-26 | 2018-11-06 | 浙江威思康塑胶有限公司 | A kind of edge band and its production method of organic silicon material |
| CN111484805A (en) * | 2020-04-17 | 2020-08-04 | 大族激光科技产业集团股份有限公司 | Bonding method of non-metal material |
| CN111484805B (en) * | 2020-04-17 | 2022-06-07 | 大族激光科技产业集团股份有限公司 | Bonding method of non-metal material |
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Application publication date: 20120822 |