阅读说明：本技术 一种防伪材料及制造方法 (Anti-counterfeiting material and manufacturing method thereof ) 是由 吴学勇 吴登泼 吴国翔 于 2021-01-14 设计创作，主要内容包括：本发明公开了一种防伪材料及制造方法,所述方法包括：步骤1：将发光材料A制成第一发光涂层,将发光材料B制成第二发光涂层,第一发光涂层直接贴合在第二发光涂层上,使得两个发光涂层背靠背相互贴合在一起,形成片状发光材料,第一发光涂层和第二发光涂层沿着片状轴向方向平行延伸,发光材料A和发光材料B为两种具有不同光致发光特性的材料,发光材料A和发光材料B均透可见光和阻隔激发光；步骤2：将所述片状发光材料切成细丝,得到丝状或条状发光材料,将丝状或条状发光材料定型,得到弯曲状发光材料；步骤3：将弯曲状发光材料切成段,得到小段的弯曲状发光材料,得到防伪材料。本发明质量易控,不需要使用到复杂的加工设备,制造成本低。(The invention discloses an anti-counterfeiting material and a manufacturing method thereof, wherein the method comprises the following steps: step 1: preparing a luminescent material A into a first luminescent coating, preparing a luminescent material B into a second luminescent coating, directly attaching the first luminescent coating to the second luminescent coating, attaching the two luminescent coatings back to form a flaky luminescent material, extending the first luminescent coating and the second luminescent coating in parallel along the axial direction of the flaky shape, wherein the luminescent material A and the luminescent material B are two materials with different photoluminescence characteristics, and both the luminescent material A and the luminescent material B transmit visible light and block exciting light; step 2: cutting the sheet luminescent material into filaments to obtain filament or strip luminescent materials, and shaping the filament or strip luminescent materials to obtain curved luminescent materials; and step 3: and cutting the curved luminescent material into segments to obtain small segments of the curved luminescent material, thereby obtaining the anti-counterfeiting material. The invention has the advantages of easy quality control, no need of complex processing equipment and low manufacturing cost.)

1. A method for manufacturing an anti-counterfeiting material is characterized by comprising the following steps:

step 1: the method comprises the following steps of preparing a luminescent material A into a first luminescent coating, preparing a luminescent material B into a second luminescent coating, directly attaching the first luminescent coating to the second luminescent coating, enabling the two luminescent coatings to be attached together back to form a flaky luminescent material, extending the first luminescent coating and the second luminescent coating in parallel along the axial direction of the flaky shape, wherein the luminescent material A and the luminescent material B are two materials with different photoluminescence characteristics;

step 2: cutting the sheet luminescent material into filaments or strips to obtain filament or strip luminescent materials, and shaping the filament or strip luminescent materials to obtain curved luminescent materials;

and step 3: and cutting the curved luminescent material along the length direction thereof to form a plurality of sections, thereby obtaining the anti-counterfeiting material.

2. A method for manufacturing an anti-counterfeiting material is characterized by comprising the following steps:

step 1: respectively coating a luminescent material A and a luminescent material B on two opposite surfaces of a light-transmitting sheet or a non-light-transmitting sheet, so as to respectively form a first luminescent coating and a second luminescent coating on the two surfaces of the light-transmitting sheet or the non-light-transmitting sheet, so as to obtain a sheet-shaped luminescent material, wherein the first luminescent coating and the second luminescent coating extend in parallel along the axial direction of the sheet shape, and the luminescent material A and the luminescent material B are two materials with different photoluminescence characteristics;

step 2: cutting the sheet luminescent material into filaments or strips to obtain filament or strip luminescent materials, and shaping the filament or strip luminescent materials to obtain curved luminescent materials;

and step 3: and cutting the curved luminescent material along the length direction thereof to form a plurality of sections, thereby obtaining the anti-counterfeiting material.

3. The method of claim 2, wherein the transparent sheet or the non-transparent sheet is a PET film.

4. The method for manufacturing a security material according to claim 1 or 2, wherein the luminescent material a is a visible light transmitting material or a visible light opaque material, and the luminescent material B is a visible light transmitting material or a visible light opaque material.

5. The method for manufacturing a security material according to claim 4, wherein the luminescent material A and the luminescent material B are both visible light-transmitting materials, or at least one of the luminescent material A and the luminescent material B is a visible light-opaque material.

6. The method for manufacturing a security material according to claim 1 or 2, wherein the luminescent material a is an excitation light blocking material or an excitation light unblocking material, and the luminescent material B is an excitation light blocking material or an excitation light unblocking material.

7. The method for manufacturing a security material according to claim 6, wherein the luminescent material A and the luminescent material B are both light-blocking materials, or at least one of the luminescent material A and the luminescent material B is a light-unblocking material.

8. The method for manufacturing a security material according to claim 1 or 2, wherein the shaping of the filament or strip-like luminescent material to obtain a curved luminescent material is carried out by:

winding the filamentous or strip-shaped luminescent material on a processing mould for shaping to obtain the curved luminescent material.

9. The method for manufacturing a security material according to claim 1, wherein the shaping of the filament or strip-like luminescent material to obtain a curved luminescent material is carried out by the following steps:

winding the filamentous or strip-shaped luminescent material on a processing mould for shaping to obtain the curved luminescent material.

10. A security material produced by the method of producing a security material according to any one of claims 1 to 9.

11. A single anti-counterfeiting material is in a thread shape or a strip shape, and comprises a first luminous coating and a second luminous coating which are distributed on the cross section and extend in parallel along the length direction of the anti-counterfeiting material, wherein the first luminous coating and the second luminous coating are directly or indirectly attached together, the first luminous coating and the second luminous coating have different photoluminescence characteristics and can block exciting light, at least one luminous coating is opaque to visible light, so that at least two irradiation angles A and B exist on the anti-counterfeiting material, when the exciting light irradiates from the irradiation angle A, the visual effect which is obviously different from that when the exciting light irradiates from the irradiation angle B is realized, and human eyes move on the side of the first luminous coating and the side of the second luminous coating to see that the anti-counterfeiting material is obviously changed from luminous color to non-luminous color or from non-luminous color to luminous color.

12. An anti-counterfeiting material is in a thread shape or a strip shape, a single anti-counterfeiting material comprises a first luminous coating and a second luminous coating which are distributed on the cross section and extend in parallel along the length direction of the anti-counterfeiting material, the first luminous coating and the second luminous coating are directly or indirectly attached together, the first luminous coating and the second luminous coating have different photoluminescence characteristics, at least one luminous coating is opaque to visible light and opaque to exciting light, the opaque to visible light and the opaque to exciting light do not exist in the same luminous coating, so that at least two irradiation angles A and B exist on the anti-counterfeiting material,

when the exciting light is irradiated from the irradiation angle A, the human eyes move on the first luminescent coating side and the second luminescent coating side to see the obvious change of two different luminescent colors of the anti-counterfeiting material,

when exciting light irradiates from an irradiation angle B, human eyes fix on the side of the first luminous coating or the side of the second luminous coating to see that the anti-counterfeiting material obviously changes from a luminous color to a non-luminous color or from the non-luminous color to the luminous color.

13. A security material as claimed in claim 11 or claim 12 wherein, if the first and second luminescent coatings are indirectly adhered together, the first and second luminescent coatings are adhered together by a transparent sheet or a non-transparent sheet, and wherein the first and second luminescent coatings are respectively applied to opposite surfaces of the transparent sheet or the non-transparent sheet.

Technical Field

The invention relates to the technical field of anti-counterfeiting material manufacturing, in particular to an anti-counterfeiting material and a manufacturing method thereof.

Background

The existing anti-counterfeiting materials are mostly made by limiting, namely, a composite spinning method is adopted to make a plurality of fiber luminescent materials with luminescent characteristics into a single fiber, so that the manufacturing cost is higher. In the composite spinning method, two screw extruders are generally used to respectively extrude two polymers, and then the two polymers are sent to a composite spinning assembly to be processed to obtain composite fibers. Therefore, a method for manufacturing an anti-counterfeiting material with lower cost and easily controlled manufacturing links is needed to obtain an anti-counterfeiting material with reliable quality

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a method for manufacturing an anti-counterfeiting material, which can solve the problem of manufacturing the anti-counterfeiting material;

the invention aims to provide a security material, which can solve the problem of poor security effect of the security material.

The technical scheme for realizing one purpose of the invention is as follows: a method for manufacturing an anti-counterfeiting material comprises the following steps:

step 1: the method comprises the following steps of preparing a luminescent material A into a first luminescent coating, preparing a luminescent material B into a second luminescent coating, directly attaching the first luminescent coating to the second luminescent coating, enabling the two luminescent coatings to be attached together back to form a flaky luminescent material, extending the first luminescent coating and the second luminescent coating in parallel along the axial direction of the flaky shape, wherein the luminescent material A and the luminescent material B are two materials with different photoluminescence characteristics;

step 2: cutting the sheet luminescent material into filaments or strips to obtain filament or strip luminescent materials, and shaping the filament or strip luminescent materials to obtain curved luminescent materials;

and step 3: and cutting the curved luminescent material along the length direction thereof to form a plurality of sections, thereby obtaining the anti-counterfeiting material.

A method for manufacturing an anti-counterfeiting material comprises the following steps:

step 1: respectively coating a luminescent material A and a luminescent material B on two opposite surfaces of a light-transmitting sheet, so as to respectively form a first luminescent coating and a second luminescent coating on the two surfaces of the light-transmitting sheet, thus obtaining a flaky luminescent material, wherein the first luminescent coating and the second luminescent coating extend in parallel along the axial direction of the flaky shape, and the luminescent material A and the luminescent material B are two materials with different photoluminescence characteristics;

step 2: cutting the sheet luminescent material into filaments or strips to obtain filament or strip luminescent materials, and shaping the filament or strip luminescent materials to obtain curved luminescent materials;

and step 3: and cutting the curved luminescent material along the length direction thereof to form a plurality of sections, thereby obtaining the anti-counterfeiting material.

Further, the light-transmitting sheet is a PET film.

Further, the luminescent material a is a visible light transmitting material or a visible light opaque material, and the luminescent material B is a visible light transmitting material or a visible light opaque material.

Further, the luminescent material A and the luminescent material B are both visible light-transmitting materials, or at least one of the luminescent material A and the luminescent material B is a visible light-opaque material.

Further, the luminescent material A is an excitation light blocking material or an excitation light unblocking material, and the luminescent material B is an excitation light blocking material or an excitation light unblocking material.

Further, the luminescent material a and the luminescent material B are both excitation light blocking materials, or at least one of the luminescent material a and the luminescent material B is an excitation light non-blocking material.

Further, the shaping of the filamentous or strip-shaped luminescent material to obtain the curved luminescent material specifically comprises the following implementation processes:

winding the filamentous or strip-shaped luminescent material on a processing mould for shaping to obtain the curved luminescent material.

Further, the shaping of the filamentous or strip-shaped luminescent material to obtain the curved luminescent material specifically comprises the following implementation processes:

winding the filamentous or strip-shaped luminescent material on a processing mould for shaping to obtain the curved luminescent material.

An anti-counterfeiting material is prepared by adopting the anti-counterfeiting material preparation method.

The invention has the beneficial effects that: the invention has the advantages of simple and rapid manufacture, short chain in production link, easy quality control, no need of complex processing equipment, low manufacturing cost and reliable quality of the obtained anti-counterfeiting material. And the change of the luminous color of the prepared anti-counterfeiting material can be observed under the condition that human eyes move or do not move, so that the anti-counterfeiting material has a good anti-counterfeiting effect.

Drawings

FIG. 1 is a flow chart of a preferred embodiment;

FIG. 2 is a schematic cross-sectional view of a C-shaped anti-counterfeiting material prepared under a light-transmitting sheet;

FIG. 3 is a schematic view of a security material having a light transmissive sheet with a circular lower cross-section;

FIG. 4 is a schematic cross-sectional view of a C-shaped security material prepared without a light-transmitting sheet;

FIG. 5 is a schematic view of a security material with a circular cross-section without a light transmissive sheet;

fig. 6 is a schematic view of winding a filament or strip-like luminescent material on a processing mold.

Detailed Description

The invention is further described below with reference to the drawings and the specific embodiments.

Example one

As shown in fig. 1, 4-6, a method for manufacturing a security material includes the following steps:

step 1: the luminescent material A is made into a first luminescent coating, the luminescent material B is made into a second luminescent coating, and the first luminescent coating is directly attached to the second luminescent coating, so that the two luminescent coatings are mutually attached back to form the luminescent material of an integral coating. That is, a surface of the first luminescent coating layer and a surface of the second luminescent coating layer are attached to each other to form the sheet-shaped luminescent material, and the first luminescent coating layer and the second luminescent coating layer extend in parallel along the sheet-shaped axial direction (i.e., the length direction). The light-emitting material a and the light-emitting material B are two materials having different photoluminescence characteristics, for example, the light-emitting material a is a red fluorescent material, and the light-emitting material B is a blue fluorescent material, and the two fluorescent materials can excite visible light when being irradiated by ultraviolet rays.

Step 2: the sheet-like luminescent material is cut into filaments or strips, for example, cut into filaments, that is, cut into strips, to obtain filament-like or strip-like luminescent materials, and the filament-like or strip-like luminescent materials are wound on a processing mold for shaping and then cooled, to obtain the curved (for example, spring-like) luminescent materials. In the actual manufacturing process, the filament-shaped luminescent material can be wound in the heating mould for heating and forming, because the filament-shaped luminescent material is wound in the heating mould, the filament-shaped luminescent material is in a spring shape, and after the filament-shaped luminescent material is heated and formed, the bent luminescent material with certain hardness is formed.

Fig. 6 is a schematic view showing that the filament or strip-shaped luminescent material is wound on the processing mold, and after the filament or strip-shaped luminescent material is shaped, the spring-shaped luminescent material can be obtained.

And step 3: and cutting the curved luminescent material along the length direction thereof into a plurality of sections, namely, into sections to obtain small sections of curved luminescent materials, thereby obtaining the anti-counterfeiting material. The curved luminescent material can be cut into a C shape, so that a section of C-shaped anti-counterfeiting material is obtained.

When the excitation light irradiates on the first luminescent coating of the anti-counterfeiting material to emit a luminescent color C, the first luminescent coating absorbs and reflects redundant excitation light, the first luminescent coating blocks the excitation light from irradiating on the second luminescent coating, the luminescent material A and the luminescent material B are both visible light-transmitting materials, and due to the fact that the first luminescent coating and the second luminescent coating can both transmit visible light, human eyes can see the luminescent color C from any position. The visible light transmitting material means a second luminescent coating layer which is capable of transmitting visible light to irradiate a luminescent color to the other side, for example, the luminescent color can be irradiated from the first luminescent coating layer to the other side. The visible light-impermeable material is the other side which cannot be irradiated by visible light so that the luminescent color cannot be irradiated, but the luminescent color can be reflected on the surface of the material to obtain reflected light, for example, the luminescent color can be reflected on the surface of the first luminescent coating layer to emit the luminescent color, and the luminescent color cannot be transmitted to irradiate the second luminescent coating layer.

Similarly, when the excitation light irradiates on the second luminescent coating of the anti-counterfeiting material to emit a luminescent color D, the second luminescent coating absorbs and reflects redundant excitation light, and the second luminescent coating blocks the excitation light from irradiating on the first luminescent coating.

Therefore, the excitation light can excite different colors from the inner side and the outer side of the curved (such as C-shaped) anti-counterfeiting material, and human eyes can show different colors when observing from different angles.

Example two

Referring to fig. 1 to 3 and 6, an embodiment is to bond a light emitting material a and a light emitting material B together, and is different from the first embodiment in that the first embodiment forms a first light emitting layer and a second light emitting layer on two opposite surfaces of a light transmissive sheet by painting the light emitting material a and the light emitting material B on the two opposite surfaces of the light transmissive sheet, respectively, in step 1. The transparent sheet is preferably a transparent PET film which has good temperature resistance and high mechanical strength, is convenient to process and shape, and is not easy to deform by heating after shape setting.

When the light-transmitting sheet is a PET film, the luminescent material A is coated on one surface of the PET film to form a first luminescent coating, and the luminescent material B is coated on the other surface of the PET film to form a second luminescent coating. The first luminescent coating layer and the second luminescent coating layer extend in parallel along the axial direction (i.e. the length direction) of the PET film to form a sheet-shaped luminescent material. Then the sheet luminescent material is cut into filaments and wound in a heating mould for shaping, the shaped sheet luminescent material is in a spring shape, and a small section of the luminescent material in a C shape is cut off to form the final anti-counterfeiting material.

Similarly, when the excitation light irradiates on the first luminescent coating of the anti-counterfeiting material to emit the luminescent color C, the first luminescent coating absorbs and reflects redundant excitation light, the first luminescent coating blocks the excitation light from irradiating on the second luminescent coating, the luminescent material A and the luminescent material B are both visible light transmitting materials, and the luminescent color C can be seen by human eyes from any position because the first luminescent coating and the second luminescent coating can both transmit visible light. The visible light transmitting material means a second luminescent coating layer which is capable of transmitting visible light to irradiate a luminescent color to the other side, for example, the luminescent color can be irradiated from the first luminescent coating layer to the other side. The visible light-impermeable material is the other side which cannot be irradiated by visible light so that the luminescent color cannot be irradiated, but the luminescent color can be reflected on the surface of the material to obtain reflected light, for example, the luminescent color can be reflected on the surface of the first luminescent coating layer to emit the luminescent color, and the luminescent color cannot be transmitted to irradiate the second luminescent coating layer.

Similarly, when the excitation light irradiates on the second luminescent coating of the anti-counterfeiting material to emit a luminescent color D, the second luminescent coating absorbs and reflects redundant excitation light, and the second luminescent coating blocks the excitation light from irradiating on the first luminescent coating.

Therefore, the excitation light can excite different colors from the inner side and the outer side of the curved (such as C-shaped) anti-counterfeiting material, and human eyes can show different colors when observing from different angles.

Since the light-transmitting sheet can transmit visible light, the luminescent color C or the luminescent color D can still pass through the first luminescent coating layer and the second luminescent coating layer, so that human eyes can see the luminescent color C and the luminescent color D from any positions, and the same technical effect can be achieved as in the first embodiment. It is not required that the light-transmitting sheet block the excitation light, and for example, the PET film does not block the excitation light.

Of course, as another embodiment of this embodiment, the luminescent material a and the luminescent material B are respectively coated on two opposite surfaces of a non-light-transmissive sheet. That is, the light-transmitting sheet is replaced with a non-light-transmitting sheet, for example, a transparent PET film is replaced with a non-transparent PET film, for example, a PET film is coated with white color without transmitting visible light. At this time, the human eye cannot see the luminescent color D from any position. Specifically, when excitation light irradiates on a first luminescent coating layer of the anti-counterfeiting material to emit luminescent color C, the first luminescent coating layer absorbs and reflects redundant excitation light, the first luminescent coating layer blocks the excitation light from irradiating on a second luminescent coating layer, and a non-light-transmitting sheet is arranged between the first luminescent coating layer and the second luminescent coating layer, so that human eyes can only see the luminescent color C from the side of the first luminescent coating layer, but cannot see the luminescent color C from the side of the second luminescent coating layer. At this time, both human eyes and excitation light are on the first luminescent coating layer side. Similarly, when the excitation light is irradiated on the second luminescent coating layer of the forgery-preventing material, the luminescent color D is emitted, and thus the human eye can see the luminescent color D only from the side of the second luminescent coating layer.

EXAMPLE III

In the first and second embodiments, both the luminescent material a and the luminescent material B can transmit visible light, in the present embodiment, at least one of the luminescent material a and the luminescent material B is opaque to visible light, including that the luminescent material a transmits visible light, the luminescent material B does not transmit visible light, the luminescent material a does not transmit visible light, the luminescent material B transmits visible light, and both the luminescent material a and the luminescent material B do not transmit visible light. At this time, the first luminescent coating layer and the second luminescent coating layer formed by the luminescent material a and the luminescent material B can see the luminescent color only when the human eye is on the same side as the excitation light, that is, the human eye can see the luminescent color at a specific position.

Taking the luminescent material a as visible light-transmitting material and the luminescent material B as invisible light-opaque material as an example, when the excitation light irradiates on the first luminescent coating layer of the anti-counterfeiting material to emit the luminescent color C, the first luminescent coating layer absorbs and reflects the redundant excitation light, the first luminescent coating layer blocks the excitation light from irradiating on the second luminescent coating layer, because the second luminescent coating layer is invisible, the human eye can only see the luminescent color C from the first luminescent coating layer side, but cannot see the luminescent color C from the second luminescent coating layer side. At this time, both human eyes and excitation light are on the first luminescent coating layer side. And when the excitation light irradiates on the second luminescent coating of the anti-counterfeiting material to emit luminescent color D, the second luminescent coating absorbs and reflects redundant excitation light, the second luminescent coating blocks the excitation light from irradiating on the first luminescent coating, and because the second luminescent coating is opaque to visible light, the visible light cannot irradiate on the first luminescent coating, so human eyes can only see the luminescent color D from the side of the second luminescent coating.

Similarly, if the light-emitting material a is opaque to visible light, the light-emitting material B is opaque to visible light, or both the light-emitting material a and the light-emitting material B are opaque to visible light. At this time, the corresponding luminescent color can be seen only when the human eye stays on the same side as the excitation light, for example, when the excitation light is irradiated to the first luminescent coating layer to emit the luminescent color C, the human eye can see the luminescent color C only when the human eye stays on the first luminescent coating layer side.

The light transmittances of the light-emitting materials a and B are specifically shown in the following table, and therefore, visible light-transmitting materials or visible light-opaque materials can be used:

material for distribution A	Material for distribution B
		Visible light transmission	Visible light transmission
Visible light transmission	Invisible light cannot be transmitted
		Invisible light cannot be transmitted	Visible light transmission
Invisible light cannot be transmitted	Invisible light cannot be transmitted

Example four

The difference from the first, second, and third embodiments is that in this embodiment, the light-emitting material a transmits visible light, the light-emitting material B does not transmit visible light, the light-emitting material a does not block excitation light, and the light-emitting material B blocks excitation light. In this case, when the excitation light is irradiated to the first luminescent coating layer to emit the luminescent color C1, since the first luminescent coating layer does not block the excitation light, the excitation light can be irradiated to the second luminescent coating layer, the second luminescent coating layer emits the luminescent color C2, the luminescent color C2 is simultaneously emitted to both sides of the first luminescent coating layer and the second luminescent coating layer, the first luminescent coating layer emits the mixed color C12 formed by mixing the luminescent color C1 and the luminescent color C2, and since the luminescent color C1 is more intense, the mixed color C12 is biased toward C1, and the second luminescent coating layer emits the luminescent color C2.

Similarly, when the excitation light is irradiated to the second luminescent coating layer to emit the luminescent color C2, since the second luminescent coating layer blocks the excitation light, the luminescent color is not seen by the first luminescent coating layer, and the luminescent color C2 can be seen by human eyes only on the side of the second luminescent coating layer.

If the human eye moves while the excitation light remains stationary, the human eye can see a significant change in color and what is seen is a significant change in the difference between the two colors. If the human eye keeps still and the exciting light keeps moving, the human eye sees the obvious change of the same color, namely the change from the luminous color to the non-luminous color or from the non-luminous color to the luminous color.

As for the effects produced by the light transmittance of the luminescent material a and the luminescent material B and other situations of blocking laser emission, the corresponding effects can be obtained according to the above description, and are not described herein.

The embodiments disclosed in this description are only an exemplification of the single-sided characteristics of the invention, and the scope of protection of the invention is not limited to these embodiments, and any other functionally equivalent embodiments fall within the scope of protection of the invention. Various other changes and modifications to the above-described embodiments and concepts may occur to those skilled in the art, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.