阅读说明：本技术 带有客制化水印的可激光标记物及其制备方法 (With customized watermark can laser labelling object and preparation method thereof ) 是由 张佳志 于 2017-06-05 设计创作，主要内容包括：本公开提供一种带有客制化水印的可激光标记物及其制备方法。该带有客制化水印的可激光标记物包括依次层叠设置的含有第一着色剂的面层、含有第二着色剂的底层、胶粘剂层和任选的离型层,还包括至少设置于所述面层中的客制化水印,所述客制化水印由多个水印单元组成,这些水印单元彼此间隔并且规则分布,每个水印单元由激光刻蚀的图案组成,其中,所述水印单元的深度小于所述面层的厚度,或者所述水印单元的一部分图案的深度大于所述面层的厚度但不超过所述面层和所述底层的总厚度,并且深度大于面层厚度的图案在每个水印单元中所占的面积比例不超过20％。该带有客制化水印的可激光标记物具有良好的耐磨性、耐久性以及外观效果。(The disclosure provide it is a kind of with customized watermark can laser labelling object and preparation method thereof.This with customized watermark can laser labelling object include the surface layer containing the first colorant being cascading, bottom containing the second colorant, gluing oxidant layer and optional release layer, it further include the customized watermark being at least set in the surface layer, the customized watermark is made of multiple watermark units, these watermark units are spaced each other and regular distribution, each watermark unit is made of the pattern of laser ablation, wherein, the depth of the watermark unit is less than the thickness of the surface layer, or the depth of a part of pattern of the watermark unit is greater than the thickness of the surface layer but is no more than the overall thickness of the surface layer and the bottom, and the depth area ratio shared in each watermark unit greater than the pattern of surface thickness is no more than 20%.This with customized watermark can laser labelling object have good wearability, durability and appearance.)

1. it is a kind of with customized watermark can laser labelling object, including the face containing the first colorant being cascading Layer, the bottom containing the second colorant, gluing oxidant layer and optional release layer, wherein

It is described can laser labelling object further include the customized watermark being at least set in the surface layer, the customized watermark is by more A watermark unit composition, these watermark units are spaced each other and regular distribution, each watermark unit by laser ablation pattern Composition,

Wherein, the depth of the watermark unit is less than the thickness of the surface layer, or

The depth of a part of pattern of the watermark unit is greater than the thickness of the surface layer but is no more than the surface layer and the bottom The overall thickness of layer, and depth is greater than the pattern area ratio shared in each watermark unit of surface thickness and is no more than 20%.

2. it is according to claim 1 with customized watermark can laser labelling object, wherein

The etching depth of the watermark unit is 2.5 μm to 25 μm.

3. it is according to claim 1 with customized watermark can laser labelling object, wherein

The pattern of the watermark unit is made of point and/or lines, and the spacing between point and/or lines is from 0 μm to 1.5mm.

4. it is according to claim 1 with customized watermark can laser labelling object, wherein

First colorant and second colorant are two kinds of colorants of degree of being contrasted.

5. it is according to claim 4 with customized watermark can laser labelling object, wherein

First colorant is black colorant, and second colorant is white color agents.

6. it is according to claim 1 with customized watermark can laser labelling object, wherein

The surface layer with a thickness of 2 μm to 25 μm.

7. it is according to claim 1 with customized watermark can laser labelling object, wherein

The bottom with a thickness of 30 μm to 100 μm.

8. it is according to claim 1 with customized watermark can laser labelling object, wherein

The surface layer and the bottom are formed by the resin combination respectively containing the first colorant and the second colorant.

9. it is according to claim 8 with customized watermark can laser labelling object, wherein

The resin combination also includes polyvinyl butyral, polyester resin and film forming curing agent.

10. it is according to claim 1 with customized watermark can laser labelling object, wherein

The gluing oxidant layer is formation of pressure-sensitive adhesive layer.

11. it is according to claim 1 with customized watermark can laser labelling object, be used as vehicle identify The label of code.

12. it is a kind of prepare according to claim 1 described in any one of -11 with customized watermark can laser labelling object side Method, comprising:

Prepare laser labelling object comprising surface layer, bottom, gluing oxidant layer and the optional release layer being cascading；

Laser ablation at least is carried out to form the customized water being made of multiple watermark units to the surface layer of the laser labelling object Print,

Wherein

The depth of the watermark unit is less than the thickness of the surface layer, or

The depth of a part of pattern of the watermark unit is greater than the thickness of the surface layer but is no more than the surface layer and the bottom The overall thickness of layer, and depth is greater than the pattern area ratio shared in each watermark unit of surface thickness and is no more than 20%.

13. according to the method for claim 12, wherein the laser labelling object for preparing includes:

The surface layer containing the first colorant is formed on carrier film；

The bottom containing the second colorant is formed in the surface layer；

The gluing oxidant layer optionally with release layer is formed on the bottom；With

Remove carrier film.

14. the method according to claim 11, wherein

The surface layer that the first colorant is formed on carrier film includes: that will contain the first colorant, polyvinyl butyral, polyester tree The resin combination dissolution of rouge and film forming curing agent in a solvent, is then coated on carrier film.

15. the method according to claim 11, wherein

In the surface layer formed the bottom containing the second colorant include: will containing the second colorant, polyvinyl butyral, The resin combination dissolution of polyester resin and film forming curing agent in a solvent, is then coated in the surface layer.

16. method according to claim 14 or 15, wherein

The coating includes scraper type coating, slot coated and net roll coating.

17. the method according to claim 11, wherein

Laser light source for the laser ablation is CO₂, Nd-YAG or UV laser light source.

18. according to the method for claim 12, wherein the etching depth of the watermark unit is 2.5 μm to 25 μm.

Technical field

This disclosure relates to one kind can laser labelling object, more particularly to can be used as label with customized watermark can laser Marker and preparation method thereof.

Background technique

The label for carrying ID code of vehicle is the important composition component of vehicle, and the management and retrospect to vehicle have weight Want meaning.Usually other than the main information of vehicle inherent parameters setting, also need on this kind of label with the host customized Information of factory etc. improves the antifalsification of label to help quickly to distinguish management and identification.These customized information (also may be used Referred to as watermark) to repeat, full of the space of a whole page in the form of the entire label of filling, as background information.These watermark informations are deposited In the main information for the vehicle itself that will not influence subsequent production, but can clearly read.The particular content of these watermarks can To be the Chinese, logo or trade mark etc. of such as main engine plants.Usually, these watermark informations are by producing this kind of label material Producer according to vehicle main frame producer requirement in advance customized on label material, then this kind of label material is supplied to host Producer, the scene on label material such as the vehicle produced according on the day of on the automobile production assembly line of host producer and code are write Enter the main information of vehicle itself.For this kind of application, this kind of labeling requirement has excellent abrasion-resistant, ageing-resistant, chemically-resistant The performances such as solvent corrosion, the pith that customized watermark is formed as label, it is also desirable to have these performances.It is each at present There are relevant standard requirements in country, such description is also shown in Chinese related national standard, label is with CS-10 grinding wheel in Taber 200 circulations of 500g friction are loaded on frictiograph, customized main engine plants' information is clear to.

Currently, customized watermark is mainly realized by the printing solvent type on this kind of label or UV type ink.So And this kind of printing technology requires to apply heat or UV energy carrys out cured printing ink, so that the risk for causing tag performance to change is had, than Such as cause the contraction of label plane materiel or cause the release paper dehydration of label and then generate curling, or influences the bonding effect of adhesive Fruit etc..Bigger problem is, the abrasion resistance of this kind of label with customized information obtained, chemical solvent resistance, durable Property etc. it is bad, and can face and produce problem quantitative big, more than inventory.Though also there is the mode for taking coining to overcome wearability And endurance issues, but this mode is also faced with huge production requirement amount, inefficiency, high production cost, asking more than inventory Topic.It is very unfavorable for this main engine plants lesser for label amount ratio.

Summary of the invention

The disclosure provide it is a kind of with customized watermark can laser labelling object, with good wearability, durability And appearance, also provide it is a kind of prepare the customized watermark can laser labelling object method.

The some aspects of the disclosure provide it is a kind of with customized watermark can laser labelling object, including be cascading The surface layer containing the first colorant, the bottom containing the second colorant, gluing oxidant layer and optional release layer, wherein

It is described can laser labelling object further include the customized watermark being set in the surface layer, the customized watermark is by more A watermark unit composition, these watermark units are spaced each other and are regularly distributed in the surface layer, and each watermark unit is by swashing The pattern of photoengraving forms, and etching depth is 2.5 μm to 25 μm.

The some aspects of the disclosure provide it is a kind of prepare with customized watermark can laser labelling object method, comprising:

To can the surface layer of laser labelling object carry out laser ablation to form customized watermark, etching depth is 2.5 μm to 25 μ m。

Detailed description of the invention

In order to allow the disclosure above and other objects, features and advantages can it is more obvious and easy to understand, with reference to the accompanying drawing and Specific embodiment is described further the disclosure.

Fig. 1 be according to the disclosure certain embodiments with customized watermark can laser labelling object structural representation Figure.

Fig. 2 show according to the disclosure one embodiment with customized watermark can laser labelling object face Figure.

Fig. 3 shows the appearance after the sample friction experiment of resistance to Taber prepared by the embodiment of the present disclosure 1.

Fig. 4 shows the appearance after the 1 sample abrasion test of disclosure comparative example.

Fig. 5 shows the watermark unit of 2 sample of disclosure comparative example.

Specific embodiment

It should be appreciated that without departing from the scope or spirit of the present disclosure, those skilled in the art can be according to this The introduction of specification imagines other various embodiments and can modify to it.Therefore, specific embodiment below is not Restrictive meaning.

Unless otherwise specified, expression characteristic size, quantity and materialization used in specification and claims are special All numbers of property be construed as to be modified by term " about " in all cases.Therefore, unless there are opposite Illustrate, the numerical parameter otherwise listed in description above and the appended claims is approximation, those skilled in the art Member can seek the required characteristic obtained using teachings disclosed herein, suitably change these approximations.With endpoint table The use for the numberical range shown includes all numbers within the scope of this and any range within the scope of this, for example, 1 to 5 includes 1,1.1,1.3,1.5,2,2.75,3,3.80,4 and 5 etc..

Unless otherwise specified, " watermark " described in the disclosure refer to repeat, full of the space of a whole page in the form of fill Denounce the customized information of entire background.The presence of these watermark informations does not influence the main information of subsequent production, but can be clear Clear reading.

Unless otherwise specified, " watermark unit " described in the disclosure, which refers to, constitutes the identical substantially single of watermark Position, these units regular distribution at each interval.

Unless otherwise specified, " main information " described in the disclosure refer to it is main on marker for being carried on Information, for example, main information may include ID code of vehicle, the setting of vehicle inherent parameters etc. for automobile-used label.

Unless otherwise specified, " surface layer " described in the disclosure refer to when can laser labelling object or label be attached at object Positioned at the exposed surface in outside when body.

With customized watermark can laser labelling object

According in some terms, the disclosure provide it is a kind of with customized watermark can laser labelling object, including stack gradually The surface layer containing the first colorant, the bottom containing the second colorant, gluing oxidant layer and the optional release layer being arranged, wherein Customized watermark is provided in the surface layer.

Customized watermark-

The disclosure provide can the customized watermark in laser labelling object can be made of multiple watermark units, these watermarks Unit is spaced each other and is regularly distributed in surface layer, and each watermark unit is made of the pattern of laser ablation, etching depth It is 2.5 μm to 25 μm.Customized watermark with 2.5 μm to 25 μm etching depths has good watermark appearance, and Excellent wearability and durability can be realized while not influencing the production of subsequent main information.

According to certain specific embodiments, the etching depth of watermark unit is less than the thickness of surface layer, for example, etching depth can Think 3 μm to 10 μm.In this case, the bottom under surface layer is not exposed.

According to certain specific embodiments, the depth of a part of pattern of watermark unit can be greater than the thickness of surface layer but not More than the overall thickness of surface layer and bottom.The depth area ratio shared in each watermark unit greater than the pattern of surface thickness is not More than 20%, for example, being about 10%, about 8%, about 5%, about 3%, about 1% etc..It is greater than the pattern of surface thickness every in depth In the case that shared area ratio is no more than 20% in a watermark unit, to the subsequent behaviour for making main information on bottom Do not influence.

Fig. 1 be according to the disclosure certain embodiments with customized watermark can laser labelling object structural representation Figure, wherein the surface layer 1 containing the first colorant, the bottom 2 containing the second colorant, gluing oxidant layer 3 and release layer 4 successively layer It is folded, and customized watermark 5 ' and 5 " is formed in surface layer 1,5 ' show that watermark etching depth is less than the feelings of the thickness of surface layer 1 Condition, 5 " show the case where partial pattern etching depth of watermark is greater than the thickness of surface layer 1.

Fig. 2 show according to the disclosure one embodiment with customized watermark can laser labelling object face Figure, wherein customized watermark throughout entirely can laser labelling object, watermark unit (3M label) in figure is spaced each other and rule Distribution.

According to certain specific embodiments, the pattern of watermark unit can be made of point and/or lines, point and/or lines Between spacing can be at 0 μm within the scope of 1.5mm, such as from 0 μm to 1.0mm, or from 0 μm to 500 μm.

Surface layer and bottom-

According to certain specific embodiments, the second colorant contained in the first colorant and bottom contained in surface layer can To be the two kinds of colorants to form certain color contrast, for example, black colorant and white color agents.In a certain specific implementation In mode, the first colorant is black colorant, and the second colorant is white color agents.In another specific embodiment, the One colorant is white color agents, and the second colorant is black colorant.

According to certain specific embodiments, the thickness of surface layer can be in 2 μm to 25 μ ms, such as 5 μm to 20 μm, 5 μ M to 15 μm or about 10 μm.The thickness of bottom can be in 30 μm to 100 μ ms, such as 50 μm to 70 μm, or about 50 μ m.The thickness of surface layer and bottom within the above range, can make can laser labelling object integrally there is excellent wearability and durable Property, even if after having made main information.

According to certain specific embodiments, surface layer and bottom by the resin combination containing the first colorant and contain respectively The resin combination of second colorant is formed.Other than contained colorant, it is used to form the resin combination of surface layer and bottom Composition can be identical, can make in this way between surface layer and bottom have higher adhesiveness, prevent layering or it is easy-peel From phenomenon.

In a certain specific embodiment, it is used to form in the resin combination of surface layer and bottom comprising polyvinyl alcohol contracting fourth Aldehyde, polyester resin and film forming curing agent.Wherein, polyvinyl butyral uses so that surface layer and bottom have fragility (when removing surface layer and/or when bottom, the layer being stripped is difficult to keep complete), this improve can laser labelling object antifalsification. Polyester resin can be including any polyester at least two crosslinkable groups such as hydroxyl group, as long as itself and polyethylene Butyral is compatible and can form a film, including saturation kind polyester, unsaturated kind polyester, alkyd polyester and polycarbonate Deng.The resin that can be crosslinked the group containing OH, including aziridine, isocyanates, amine, melamine can be used with curing agent for film forming Or melamine resin etc..Commercially available film forming curing agent, such as the Cymel 325 of Qing Te industrial group etc. can be used.

Content for each component in surface layer and bottom and between ratio there is no particular/special requirement.In general, polyvinyl alcohol Butyral and polyester resin can be used with the mass ratio of 10:90 to 90:10, for example, the ratio of the two can be for 30:70 extremely 70:30 perhaps 40:60 to 60:40 or about 50:50.Film forming curing agent can account for whole solid contents in resin combination 5% or more and 50% hereinafter, for example, 10% to 40%, 15% to 30% etc..Colorant can account for entirely in resin combination The 10%-40% of portion's solid content, such as 15%-30% etc..Colorant in the content range may insure surface layer or bottom The intensity of surface layer or bottom is kept while the color of layer.

Gluing oxidant layer-

The disclosure can be not particularly limited gluing oxidant layer in laser labelling object, as long as it can be can laser mark Note object provides enough adhesion strengths when being attached at object.

According to certain specific embodiments, the gluing oxidant layer in gluing oxidant layer can be pressure-sensitive adhesive.As pressure sensitive adhesive The specific example of stick can be acrylic pressure-sensitive adhesivee stick, synthetic rubber or natural rubber class pressure-sensitive adhesive, poly- ammonia Esters pressure-sensitive adhesive, organic silicon pressure-sensitive adhesive etc..Release layer-

The disclosure can be not particularly limited release layer, any release layer can be used in laser labelling object, such as Silicon release layer etc..

Preparation with customized watermark can laser labelling object method

According in some terms, the disclosure provide it is a kind of prepare with customized watermark can laser labelling object method, institute The method of stating may include: to can laser labelling object surface layer carry out laser ablation to form customized watermark, etching depth 2.5 μm to 25 μm.

To can laser labelling object surface layer carry out laser ablation before, the method can be the following steps are included: In The surface layer containing the first colorant is formed on carrier film；The bottom containing the second colorant is formed in the surface layer；Described The gluing oxidant layer optionally with release layer is formed on bottom；And removing carrier film.

According to certain specific embodiments, formed on carrier film first colorant surface layer include: will be containing first Toner, polyvinyl butyral, polyester resin and film forming use the resin combination dissolution of curing agent in a solvent, are then coated on On carrier film.

According to certain specific embodiments, forming the bottom containing the second colorant in the surface layer includes: that will contain Second colorant, polyvinyl butyral, polyester resin and film forming use the resin combination dissolution of curing agent in a solvent, then It is coated in the surface layer.

The description as described in the surface layer and bottom, referring to above-mentioned "-surface layer and bottom-" part.The face of being pointed out that The thickness of layer and bottom refers to the thickness after coating drying.

According to certain specific embodiments, the solvent for dissolving resin composition each component can be organic solvent, packet Include the mixture of a kind of organic solvent or a variety of organic solvents.In a specific embodiment, organic solvent can be diformazan The mixed solvent of benzene and butanol.

According to certain specific embodiments, the carrier film for forming surface layer above can be film or paper form, and It can be with or without release layer.As the example of carrier film, polyester resin film etc. can be enumerated.Reality as release layer Example, can enumerate silicon release layer etc..

According to certain specific embodiments, the method for being coated with surface layer and barrier coating may include scraper type coating, slit Coating and net roll coating etc..

According to certain specific embodiments, after being coated with resin combination, include the steps that coating is dry.Dry temperature Degree can determine according to the factors such as composition of solvent used, resin combination, such as can be 100-300 DEG C or 120- 250℃。

According to certain specific embodiments, forming gluing oxidant layer on bottom may include directly being coated in bottom surface Adhesive also may include that first adhesive is coated on release layer, then connect the release layer with adhesive with adhesive The mode for bottoming out layer is laminating on bottom.

About adhesive and release layer herein, retouched referring to above-mentioned "-gluing oxidant layer-" is related in "-release layer-" It states.

According to certain specific embodiments, customized watermark is formed in surface layer by laser ablation.

The description as described in customized watermark, referring to above-mentioned "-customized watermark-" part.

According to certain specific embodiments, the laser light source that laser ablation uses can be CO₂, Nd-YAG or UV laser light Source.Laser light source and optical maser wavelength used can be determined according to the composition etc. of resin combination in surface layer.And it can pass through Laser energy and irradiation time are controlled, the depth of the pattern of customized watermark is controlled.For example, laser energy can be 5-15W.

Can laser labelling object application

According to certain specific embodiments, the disclosure with customized watermark can laser labelling object may be used as marking Label, such as label for vehicle cognizance code etc..

Following detailed description is intended to illustratively and in non-limiting manner illustrate the disclosure.