Preparation method of spot-color or four-color printing stained paper for low-temperature water transfer printing and laser gold stamping

Abstract

The invention provides a preparation method of spot-color or four-color printing stained paper for low-temperature water transfer printing and laser gold stamping, and relates to the technical field of printing. The preparation method of the low-temperature water transfer printing laser gold stamping spot-color or four-color printing stained paper specifically comprises the following steps of S1, base oil printing, S2, card paper gold stamping, S3, spot-color or four-color stained paper printing, and S4, card paper color fixing. A layer of UV gold stamping base oil is printed on the card paper through a printing machine, then gold stamping paper is stamped on the card paper through a gold stamping machine, the card paper has the laser effect, spot-color or four-color stained paper is printed on the card paper through a silk-screen or offset printing method, the stained paper is composed of a transparent part and a non-transparent part, the non-transparent part completely covers a laser area, and the card paper has the laser effect. And the laser area at the transparent part is exposed from the transparent part, so that the pattern of the transparent part has different degrees of laser effects according to the transparency. According to the low-temperature water transfer printing laser gold stamping spot-color or four-color printing stained paper provided by the invention, a commodity package has a pattern and a laser effect at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of printing, in particular to a method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper. Background Art

[0002] Laser printing is a printing technology that uses laser ink and laser printing technology to screen or roll laser ink onto various flat and smooth transparent materials. The printed products can show different colors as the viewing angle changes, have obvious dynamic color-changing effects, and can produce a rainbow ring effect under spotlight.

[0003] The existing patent (publication number: CN101177046B) discloses "a method for making a laser label, the steps are: a. embossing a laser pattern on a plastic film substrate; b. performing corona treatment on the laser-embossed surface of the plastic film substrate; c. performing vacuum aluminum plating; d. performing surface coating on the printed surface of the plastic film substrate; e. performing gravure printing; f. finally performing glazing coating on the printed surface. This method can be used to make a laser label without a composite layer structure, which can ensure that the prepared laser label has appropriate thickness, stiffness, and smoothness, can meet the requirements of high-speed winding and pasting of laser labels, and the prepared laser label does not require a composite protective layer, saving materials and reducing costs."

[0004] In the process of realizing the present invention, the inventors found that the prior art had the following problems: the existing laser labeling process is to stick a label on the package and then hot stamp it where needed. The hot stamping layer will completely cover the corresponding label, affecting the appearance of the product. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing flower paper, which solves the problem that the existing laser label process is to stick a label on the package and then hot stamp where needed. The hot stamping layer will completely cover the corresponding label, affecting the aesthetics of the product.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper, specifically comprising the following steps:

[0009] S1. Primer printing

[0010] Print a layer of UV hot stamping primer on the cardboard with a printing press, and then dry it at room temperature to ensure that the cardboard is completely dry;

[0011] S2. Cardboard hot stamping

[0012] After the card paper printed in S1 is completely dry, the card paper obtained through the S1 process is hot stamped with gold flower paper by a hot stamping machine to give the card paper a laser effect;

[0013] S3. Printing spot color or four-color decal paper

[0014] The cardboard that has been subjected to the hot stamping process in S2 is placed on a screen printing machine or an offset printing machine, and the cardboard obtained through the process in S2 is printed with a spot color or four-color flower paper by screen printing or offset printing;

[0015] S4. Cardboard color fixation

[0016] The cardboard that has been screen printed or offset printed in S3 is placed in a setting machine, and the cardboard that has been prepared through the S3 process is dried and fixed in color through the setting machine.

[0017] Preferably, in S1, drying at room temperature needs to be performed for more than 12 hours.

[0018] Preferably, in S2, the temperature of the hot stamping machine for hot stamping the drawing paper is 80°C-100°C.

[0019] Preferably, in S3, the prepared flower paper consists of a transparent part and an opaque part.

[0020] Preferably, the opaque part completely covers the laser area, and the laser area at the transparent part is visible from the transparent part, so that the pattern of the transparent part has different degrees of laser effect according to its transparency.

[0021] Preferably, in S4, the station temperature of the setting machine is 150° C. when drying and fixing the cardboard.

[0022] Preferably, in S4, the fixing time of the fixing machine when drying and fixing the cardboard is 2 hours.

[0023] (III) Beneficial effects

[0024] The invention provides a method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing flower paper.

[0025] It has the following beneficial effects:

[0026] 1. The present invention provides a method for preparing a low-temperature water transfer laser hot stamping spot color or four-color printing flower paper. Compared with the existing laser label making method, the method uses a printing machine to print a layer of UV hot stamping primer on the cardboard, and then dries it at room temperature for more than 12 hours, and then uses a hot stamping machine to hot stamp the flower paper at 80℃-100℃ on the cardboard, so that the cardboard has a laser effect, and finally prints the spot color or four-color flower paper on the cardboard by silk screen printing or offset printing, so that the flower paper consists of a transparent part and an opaque part, the opaque part completely covers the laser area, and the laser area at the transparent part is transparent from the transparent part, so that the pattern of the transparent part has different degrees of laser effect according to its transparency. The low-temperature water transfer laser hot stamping spot color or four-color printing flower paper provided by the present invention can make the commodity packaging have a flower pattern and a laser effect at the same time, and improve the overall aesthetics of the product produced by the method. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] The embodiment of the present invention provides a method for preparing low-temperature water transfer laser hot stamping spot color printing decal paper, which specifically includes the following steps:

[0030] S1. Primer printing

[0031] Print a layer of UV hot stamping primer on the cardboard with a printing press, and then dry it at room temperature to ensure that the cardboard is completely dry;

[0032] S2. Cardboard hot stamping

[0033] After the card paper printed in S1 is completely dry, the card paper obtained through the S1 process is hot stamped with gold flower paper by a hot stamping machine to give the card paper a laser effect;

[0034] S3. Printing spot color or four-color decal paper

[0035] The cardboard that has been subjected to the hot stamping process in S2 is placed on a screen printing machine or an offset printing machine, and the cardboard obtained through the process in S2 is printed with a spot color or four-color flower paper by screen printing or offset printing;

[0036] S4. Cardboard color fixation

[0037] The cardboard that has been screen printed or offset printed in S3 is placed in a setting machine, and the cardboard that has been prepared through the S3 process is dried and fixed in color through the setting machine.

[0038] In S1, drying at room temperature requires more than 12 hours. In S2, the temperature of the hot stamping machine for hot stamping drawing paper is 80℃-100℃. In S3, the prepared flower paper consists of a transparent part and an opaque part. The opaque part completely covers the laser area, and the laser area in the transparent part is visible from the transparent part, so that the pattern of the transparent part has different degrees of laser effect according to its transparency. In S4, the working temperature of the setting machine when drying and fixing the cardboard is 150℃. In S4, the fixing time of the setting machine when drying and fixing the cardboard is 2h.

[0039] Embodiment 2:

[0040] The embodiment of the present invention provides a method for preparing low-temperature water transfer laser hot stamping spot color printing decal paper, which specifically includes the following steps:

[0041] S1. Primer printing

[0042] Print a layer of UV hot stamping primer on the cardboard with a printing machine, and then dry it at room temperature to ensure that the cardboard is completely dry. Drying at room temperature requires more than 12 hours, which is conducive to ensuring that the printed primer can be completely dry and ensure the use effect of the produced products;

[0043] S2. Cardboard hot stamping

[0044] After the printed cardboard in S1 is completely dry, the cardboard obtained through the S1 process is stamped with gold flower paper by a hot stamping machine to give the cardboard a laser effect. The temperature of the hot stamping machine for stamping the drawing paper is 80℃-100℃, which is conducive to ensuring the laser effect produced by the cardboard after hot stamping and improving the overall aesthetics of the finished product;

[0045] S3. Printing spot color paper

[0046] The cardboard that has been hot stamped with flower paper in S2 is placed in a screen printing machine or an offset printing machine, and the cardboard prepared by the S2 process is printed with the flower paper by screen printing or offset printing. The flower paper is composed of a transparent part and an opaque part. The opaque part completely covers the laser area, and the laser area in the transparent part is visible from the transparent part, so that the pattern of the transparent part has different degrees of laser effect according to its transparency, which is conducive to making the product packaging have flower patterns and laser effects at the same time, and improving the overall aesthetics of the product produced by this method;

[0047] S4. Cardboard color fixation

[0048] The cardboard that has been screen-printed or offset-printed in S3 is placed in the setting machine, and the cardboard made through the S3 process is dried and fixed by the setting machine. When the cardboard is dried and fixed, the station temperature of the setting machine is 150°C, and the fixing time of the setting machine is 2 hours, which is conducive to ensuring that the color can be completely fixed and the presentation effect of the finished product is ensured.

[0049] Embodiment 3:

[0050] The embodiment of the present invention provides a method for preparing low-temperature water transfer laser hot stamping four-color printing decal paper, which specifically includes the following steps:

[0051] S1. Primer printing

[0052] Print a layer of UV hot stamping primer on the cardboard with a printing press, and then dry it at room temperature to ensure that the cardboard is completely dry, which is conducive to setting the base color for the cardboard surface. Drying at room temperature requires more than 12 hours;

[0053] S2. Cardboard hot stamping

[0054] After the printed cardboard in S1 is completely dry, the cardboard obtained through the S1 process is subjected to hot stamping by a hot stamping machine, so that the cardboard has a laser effect, and the finished product made by this method can be used as a basic function of a laser label. The temperature of the hot stamping machine for hot stamping the drawing paper is 80°C-100°C;

[0055] S3. Printing four-color flower paper

[0056] The cardboard that has been hot stamped with flower paper in S2 is placed in a screen printing machine or an offset printing machine, and the cardboard prepared by the S2 process is printed with four-color flower paper by screen printing or offset printing. This is conducive to achieving the presentation of the basic performance effect of the finished product. The prepared flower paper consists of a transparent part and an opaque part. The opaque part completely covers the laser area, and the laser area in the transparent part is transparent from the transparent part, so that the pattern of the transparent part has different degrees of laser effect according to its transparency;

[0057] S4. Cardboard color fixation

[0058] The cardboard that has been screen-printed or offset-printed in S3 is placed in a setting machine, and the cardboard obtained through the S3 process is dried and fixed by the setting machine to complete the production of the finished product. When the cardboard is dried and fixed, the station temperature of the setting machine is 150° C., and the fixing time of the setting machine is 2 hours.

[0059] The prepared low-temperature water transfer laser hot stamping spot color or four-color printing decal paper can make the decal paper consist of a transparent part and an opaque part, the opaque part completely covers the laser area, and the laser area at the transparent part is transparent from the transparent part, so that the pattern of the transparent part has different degrees of laser effect according to its transparency. The low-temperature water transfer laser hot stamping spot color or four-color printing decal paper provided by the present invention can make the product packaging have a color pattern and a laser effect at the same time, thereby improving the overall aesthetics of the product produced by the method.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper, characterized in that: The specific steps include: S1. Primer printing Print a layer of UV hot stamping primer on the cardboard with a printing press, and then dry it at room temperature to ensure that the cardboard is completely dry; S2. Cardboard hot stamping After the card paper printed in S1 is completely dry, the card paper obtained through the S1 process is hot stamped with gold flower paper by a hot stamping machine to give the card paper a laser effect; S3. Printing spot color or four-color decal paper The cardboard that has been subjected to the hot stamping process in S2 is placed on a screen printing machine or an offset printing machine, and the cardboard obtained through the process in S2 is printed with a spot color or four-color flower paper by screen printing or offset printing; S4. Cardboard color fixation The cardboard that has been screen printed or offset printed in S3 is placed in a setting machine, and the cardboard that has been prepared through the S3 process is dried and fixed in color through the setting machine.

2. The method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper according to claim 1, characterized in that: In S1, drying at room temperature requires drying for more than 12 hours.

3. The method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper according to claim 1, characterized in that: In S2, the temperature of the hot stamping machine for hot stamping the drawing paper is 80°C-100°C.

4. The method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper according to claim 1, characterized in that: In S3, the prepared flower paper consists of a transparent part and an opaque part.

5. The method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper according to claim 4, characterized in that: The opaque part completely covers the laser area, and the laser area at the transparent part is transparent from the transparent part, so that the pattern of the transparent part has different degrees of laser effects according to its transparency.

6. The method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper according to claim 1, characterized in that: In S4, the station temperature of the setting machine is 150° C. when the cardboard is dried and fixed.

7. The method for preparing low-temperature water transfer laser hot stamping spot color or four-color printing decal paper according to claim 1, characterized in that: In S4, the fixing time of the fixing machine when drying and fixing the cardboard is 2 hours.