CN112757174A - EB (Electron Beam) curing abrasive paper and preparation process thereof - Google Patents

Abstract

The invention discloses EB (Epstein-Barr) curing abrasive paper which sequentially comprises a paper substrate, an aluminum-plated layer, a frosted layer, a dielectric layer and a laser layer from bottom to top, wherein the frosted layer is formed by EB curing of a frosted coating on the aluminum-plated layer, and the frosted coating comprises transparent frosted particles and powdery pigment. The frosted layer is formed by the frosted coating containing the transparent frosted particles and the powdery pigment, on one hand, the powdery pigment and the transparent frosted particles are mutually filled, so that the frosted fine feeling is improved, and on the other hand, the powdery pigment is matched with the laser layer, so that the light sensation of the laser color is improved; furthermore, the anti-counterfeiting effect is improved by matching the hollow frosting layer and/or the hollow laser layer.

Description

EB (Electron Beam) curing abrasive paper and preparation process thereof

Technical Field

The invention relates to the technical field of packaging and printing materials, in particular to EB (Electron Beam) curing abrasive paper and a preparation process thereof.

Background

The abrasive paper is widely applied to various high-grade packages because of the bright crystal sand feeling, stability and reliability. The frosted effect is that uneven structures are formed on the surface of the base material through different processing modes, and diffuse reflection is formed after light irradiates the surface, so that a fog-like matte visual effect is presented. The laser paper is also widely applied to various high-grade packages due to the effect of light ray four-shot. The laser effect is formed by loading laser holographic patterns or character signals on the surface of the aluminum-sprayed paper in a mould pressing mode.

At present, on one hand, the general frosting effect is only formed by frosting paint containing frosting particles, the frosting effect is general, and the color change is not obvious after the frosting effect is matched with laser; on the other hand, the combination of the laser effect and the frosted effect generally adopts a mode that the laser effect and the frosted effect are completely superposed to generate the visual effect of the frosted and laser phase structure and enhance the anti-counterfeiting effect. However, the way of complete coincidence weakens the matte effect of laser and frosting, and simultaneously, the coincidence preparation process of the laser and the frosting is increasingly perfect, paper is easy to copy, and the anti-counterfeiting effect is increasingly reduced. Therefore, it is necessary to provide a further solution to the above problems.

Disclosure of Invention

The invention aims to provide EB (Epstein-Barr) curing abrasive paper and a preparation process thereof, which aim to overcome the defects in the prior art.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the utility model provides an EB solidification abrasive paper, from bottom to top includes paper substrate, aluminized layer, dull polish layer, dielectric layer and radium-shine layer in proper order, wherein, the dull polish layer is in by dull polish coating aluminized layer is gone up and is formed through the EB solidification, dull polish coating includes transparent dull polish particle and powdered pigment.

In a preferred embodiment of the present invention, the frosting layer is a hollow frosting layer.

In a preferred embodiment of the present invention, the laser layer is a hollowed laser layer.

In a preferred embodiment of the present invention, the frosted layer and the laser layer do not overlap in hollow-out portion.

In a preferred embodiment of the present invention, the frosted layer and the laser layer are overlapped in a hollow portion.

In a preferred embodiment of the present invention, the paper substrate is stone paper.

In a preferred embodiment of the present invention, the difference between the particle diameter of the transparent ground particles and the particle diameter of the powdery pigment is ± 10 μm.

In a preferred embodiment of the present invention, the dielectric layer is zinc sulfide.

In a preferred embodiment of the present invention, a primer layer is further provided between the paper substrate and the aluminum plating layer.

The invention also provides a preparation process of the EB curing abrasive paper, which comprises the following steps:

s1, coating a bottom coating on one side of the paper;

s2, feeding the paper into a vacuum spraying metal system, and forming an aluminum-plated layer by atomization deposition of aluminum wires on the paper substrate;

s3, coating the frosted coating on the aluminum plating layer by EB curing to form a frosted layer;

s4, conveying the paper base material containing the frosted layer obtained in the step S3 into a vacuum spraying system, and spraying a ZnS medium layer;

and S5, coating the moldable laser coating on the paper substrate containing the medium layer obtained in the step S4, and then carrying out die pressing on the moldable coating according to a preset part by using a die pressing machine carrying laser graphic and text information to form a laser layer.

Compared with the prior art, the invention has the beneficial effects that:

the frosted layer is formed by the frosted coating containing the transparent frosted particles and the powdery pigment, on one hand, the powdery pigment and the transparent frosted particles are mutually filled, so that the frosted fine feeling is improved, and on the other hand, the powdery pigment is matched with the laser layer, so that the light sensation of the laser color is improved; furthermore, the anti-counterfeiting effect is improved by matching the hollow frosting layer and/or the hollow laser layer.

Drawings

Fig. 1 is a schematic view of the structure of EB cured sandpaper of the present invention.

Specifically, 1, a paper substrate; 2. plating an aluminum layer; 3. sanding layer; 4. a dielectric layer; 5. and (5) laser layer.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control. The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.

In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.

The utility model provides a EB solidification abrasive paper, from bottom to top includes paper substrate 1 in proper order, aluminize layer 2, dull polish layer 3, dielectric layer 4 and radium-shine layer 5, wherein, dull polish layer 3 is formed through EB solidification by dull polish coating on aluminize layer 2, dull polish coating includes transparent dull polish particle and powdered pigment, form dull polish layer 3 through the dull polish coating that contains transparent dull polish particle and powdered pigment, powdered pigment fills each other with transparent dull polish particle on the one hand, improve dull polish fine greasy feeling, on the other hand, cooperate with radium-shine layer 5, improve radium-shine chromatic light sensation.

The frosted paint also comprises oligomer, active diluent, auxiliary agent and the like, wherein the liquid composition paint suitable for EB electron beam curing is formed by prepolymerization, then 20-25 parts by weight of transparent frosted particles are added, pre-dispersion is carried out by a high-speed dispersion machine, then emulsification and dispersion are carried out by a high-speed emulsification machine, frosted powder is fully and uniformly dispersed in the liquid composition paint to form a homogeneous body, then 20-22 parts by weight of powdered pigment is added into the homogeneous body, and the obtained product is dispersed and stirred uniformly to form the electron beam curing frosted paint. Preferably, the difference between the particle size of the transparent abrasive particles and the particle size of the powdery pigment is ± 10 μm, so that the filling effect is better and a finer abrasive effect is formed.

Preferably, the frosting layer 3 is a hollow frosting layer 3. The laser layer 5 is also preferably a hollowed-out laser layer 5. Furthermore, the hollow parts of the frosting layer 3 and the laser layer 5 are not overlapped; or the hollow parts of the frosting layer 3 and the laser layer 5 are overlapped, so that the anti-counterfeiting effect is further improved through the matching of the hollow frosting layer 3 and/or the hollow laser layer 5.

Preferably, the paper substrate 1 is stone paper to improve the strength of the paper and prevent breakage.

An undercoat layer is preferably further provided between the paper substrate 1 and the aluminum plated layer 2 to facilitate formation of the aluminum plated layer 2 directly on the paper substrate 1.

A dielectric layer 4 is arranged between the frosting layer 3 and the laser layer 5, and the dielectric layer 4 is preferably zinc sulfide so as to avoid mutual filling of gaps between the frosting layer and the laser layer and influence on the final effect.

A preparation process of EB (Epstein-Barr) curing abrasive paper comprises the following steps:

s1, coating a bottom coating on one side of the paper;

s2, feeding the paper into a vacuum spraying metal system, and forming an aluminum plating layer 2 by the atomization and deposition of aluminum wires on the paper substrate 1;

s3, coating the frosted coating on the aluminum plating layer 2 by EB curing to form a frosted layer 3;

s4, conveying the paper base material 1 containing the frosted layer 3 obtained in the step S3 into a vacuum spraying system, and spraying a ZnS medium layer 4;

and S5, coating the moldable laser coating on the paper substrate 1 containing the medium layer 4 obtained in the step S4, and then carrying out die pressing on the moldable coating according to a preset part by using a die pressing machine carrying laser graphic and text information to form a laser layer 5.

Wherein, EB solidification refers to EB electron ray solidification, and can carry out chemical superposition effect on mordant bodies in the printing ink, namely, macromolecule crosslinking effect constitutes the instant solidification.

In conclusion, the frosted layer is formed by the frosted coating containing the transparent frosted particles and the powdery pigment, on one hand, the powdery pigment and the transparent frosted particles are mutually filled, so that the frosted fine feeling is improved, and on the other hand, the powdery pigment is matched with the laser layer, so that the light sensation degree of the laser color is improved; furthermore, the anti-counterfeiting effect is improved by matching the hollow frosting layer and/or the hollow laser layer.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. The EB (Epstein-Barr) curing abrasive paper is characterized by sequentially comprising a paper substrate, an aluminum-plated layer, a sanding layer, a dielectric layer and a laser layer from bottom to top, wherein the sanding layer is formed by a sanding coating which is formed by EB (Epstein-Barr) curing on the aluminum-plated layer, and the sanding coating comprises transparent sanding particles and powdery pigment.

2. The EB cured sandpaper according to claim 1, wherein the sandpaper is a hollow sandpaper.

3. The EB cured sandpaper of claim 2 wherein the laser layer is a hollowed laser layer.

4. The EB cured sandpaper of claim 3 wherein the sandpaper and the laser layer do not overlap at their hollowed out portions.

5. The EB cured sandpaper of claim 1 wherein the sandpaper and the laser layer are partially coincident in open areas.

6. The EB cured sandpaper according to claim 1, wherein the paper substrate is stone paper.

7. The EB cured sandpaper as set forth in claim 1, wherein the difference between the particle diameter of the transparent abrasive particles and the particle diameter of the powdery pigment is ± 10 μm.

8. The EB cured sandpaper of claim 1 wherein the dielectric layer is zinc sulfide.

9. An EB cured sandpaper according to any one of claims 1 to 8, wherein a primer layer is further provided between the paper substrate and the aluminized layer.

10. The preparation process of the EB curing abrasive paper is characterized by comprising the following steps of:

s1, coating a bottom coating on one side of the paper;

s2, feeding the paper into a vacuum spraying metal system, and forming an aluminum-plated layer by atomization deposition of aluminum wires on the paper substrate;

s3, coating the frosted coating on the aluminum plating layer by EB curing to form a frosted layer;

s4, conveying the paper base material containing the frosted layer obtained in the step S3 into a vacuum spraying system, and spraying a ZnS medium layer;

and S5, coating the moldable laser coating on the paper substrate containing the medium layer obtained in the step S4, and then carrying out die pressing on the moldable coating according to a preset part by using a die pressing machine carrying laser graphic and text information to form a laser layer.

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