Water sticker production process

Abstract

A water sticker production process, comprising: step 1, preparing a roll of transfer pattern film having patterns (2) to be transferred printed on the surface of the transfer pattern film, and preparing a roll of water transfer printing paper (4) having a surface coated with water-soluble glue; and step 2, pulling out the water transfer printing paper (4) from a water transfer printing paper roller (3), and before the water transfer printing paper (4) enters a transfer printing process, spraying water on the surface of the water transfer printing paper (4), so that the water-soluble glue keeps proper humidity; step 3, performing heat transfer by a transfer printing machine; and step 4, winding a water sticker for later use by means of a material receiving roller (8) on the transfer printing machine, and a waste material receiving roller (9) winding a base material (1) of the transfer pattern film. The production process does not require manual intervention and does not need to implement printing using glue; and although ink (transparent glue) is used, constant-temperature and constant-humidity do not need to be taken into account during processing of the product, and indoor air can circulate at a high speed without producing air pollution, thereby avoiding harm to the body of a worker.

Description

A water sticker production process Technical Field

[0001] The present invention relates to the technical field of water stickers, and in particular to a method for producing water stickers by replacing an existing process with a heat transfer process. Background Art

[0002] Water-based stickers, also known as water labels, are stickers that must be soaked in water before use. This process involves using water as a carrier to melt the hydrosol between the design and the backing paper, separating the two, and then transferring the separation to the substrate. This indirect printing process is used for surface decals on a variety of products. Currently, water-based stickers are produced using a silk screen process. The production process requires the use of large quantities of glues, inks, and other highly volatile solvent chemicals such as thinner and cyclohexanone. These highly volatile solvents evaporate during the drying process, and the volatiles permeate the indoor space. Furthermore, water-based stickers expand and contract under varying humidity and temperature conditions, resulting in inaccurate registration during printing. Therefore, the environment in which they are used must maintain a constant temperature and humidity. Therefore, maintaining indoor air circulation through window openings and ventilation is not recommended to prevent the environment from maintaining a constant temperature and humidity, which can lead to severe indoor air pollution and serious harm to workers.

[0003] Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention aims to provide a water sticker production process.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a water sticker production process,

[0006] Step 1: Prepare a roll of transfer film with the pattern to be transferred printed on the surface, and also prepare a roll of water transfer paper with water-soluble glue coated on the surface;

[0007] Step 2: Pull the water transfer paper out of the water transfer paper roll. Before the water transfer paper enters the transfer process, spray water on the surface of the water transfer paper through an atomizer to keep the hydrosol at an appropriate humidity and make the surface of the water transfer paper sticky.

[0008] Step 3: Heat transfer using a transfer machine: Pull the transfer film from the transfer film roll and the water transfer paper pulled out in step 2 through the gap between the heating roller and the support roller on the transfer machine at the same time. The heating roller heats the solidified glue layer on the pattern surface of the transfer film to melt it, so that the pattern on the transfer film is attached to the water transfer paper, and a water sticker with a pattern on the surface is obtained.

[0009] Step 4: Use the receiving roller on the transfer machine to rewind the water-based sticker for later use, and the waste receiving roller will rewind the base material of the transfer film.

[0010] The method further includes step 5, wherein a layer of transparent glue is coated on the surface of the attachment pattern of the water sticker obtained in step 3 through a coating process, and after the transparent glue is cured, a release film is formed on the surface of the water sticker, connecting the pattern on the water sticker into a whole.

[0011] The gap width between the heating roller and the supporting roller is 0.5-1 mm; the heating temperature in step 3 is 120°C.

[0012] Technical effect: The present invention adopts a heat transfer process to produce water stickers. First, a roll of transfer film with various patterns printed on the surface is prepared, that is, various patterns are set on the release substrate, and a roll of water transfer paper is prepared to receive the pattern on the transfer film; before the heat transfer process, water is sprayed on the surface of the water transfer paper to keep its surface suitable; then the transfer is performed by a transfer machine, and the transfer film and the water transfer paper simultaneously pass through the gap between the heating roller and the supporting roller on the transfer machine and the two are in contact. The solidified glue layer on the surface of the pattern melts instantly, so that the pattern on the transfer film is pasted on the water transfer paper to obtain a water sticker with a pattern on the surface, and then the water sticker is rolled up by a receiving roller to obtain a rolled water sticker for use; using the process of the present invention, in steps 1-4, no manual participation is required, and no glue printing is required. Although ink (transparent glue) is used in the fifth step, constant temperature and humidity do not need to be considered when processing the product. The air in the indoor space can maintain high-speed circulation without generating air pollution, thereby not causing harm to the workers in the space and not endangering personal health. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a processing diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and implementation methods.

[0015] As shown in FIG1 , an embodiment of the present invention provides a water-based sticker production process that uses a thermal transfer process to replace the existing process;

[0016] Step 1: Prepare a roll of transfer film with the pattern to be transferred printed on its surface, and also prepare a roll of water transfer paper with a water-soluble glue coated on its surface. The transfer film includes a base layer 1 and various patterns 2 arranged thereon. The patterns are separable from the base layer 1, and a cured glue layer is provided on the pattern surface.

[0017] Step 2: Pull out the water transfer paper 4 from the water transfer paper roll 3. Before the water transfer paper enters the transfer process, spray water on the surface of the water transfer paper through an atomizer to keep the hydrosol at an appropriate humidity and make the surface of the water transfer paper sticky. That is, before the water transfer paper enters the gap between the heating roller 5 and the support roller 6 of the transfer machine, it is necessary to spray water on the surface of the water transfer paper to keep the hydrosol at an appropriate humidity. Although the present embodiment uses an atomizer to spray water, in actual applications, various water spraying tools can be used according to actual needs.

[0018] Step 3: Heat transfer using a transfer machine: Pull the transfer film from the transfer film roll 7 and the water transfer paper 4 pulled out in step 2 through the gap between the heating roller 5 and the support roller 6 on the transfer machine at the same time, and the two come into contact. At this position, the water transfer paper and the transfer film are in contact and are subjected to pressure from the heating roller 5 and the support roller 6. At this time, the transfer film contacts the heated heating roller 5, and the solidified glue layer on the surface of the pattern 2 on the transfer film melts, causing the pattern on the transfer film to stick to the water transfer paper 4, resulting in a water-based sticker with a pattern on the surface.

[0019] In step 4, the water-based sticker is rolled up for standby use by the receiving roller 8 on the transfer machine, and the waste receiving roller 9 rolls up the base material of the transfer film; the receiving roller 8 pulls the water-based sticker forward during rotation; and the waste receiving roller 9 pulls the transfer film forward. In order to form the multiple scattered patterns transferred to the water transfer paper into a whole, a further step 5 is included, in which a layer of transparent glue is applied to the surface of the attached pattern of the water-based sticker obtained in step 3 through a coating process. After the transparent glue solidifies, a release film is formed on the surface of the water-based sticker, connecting the pattern on the water-based sticker into a whole, preventing the pattern from scattering during use and thus failing to be transferred as a whole. During the use of the water-based sticker with a release film, once the pattern is attached to the surface of the product, the release film can be torn off. Specifically, the gap width between the heating roller and the support roller is 0.5-1mm; preferably 0.8mm. The heating temperature in step 3 is 120°C.

[0020] By adopting the process of the present invention, no manual intervention is required in steps 1-4, and no glue printing is required. Although ink (transparent glue) is used in step 5, constant temperature and humidity do not need to be considered when processing the product. The air in the indoor space can maintain high-speed circulation without generating air pollution, thereby not causing harm to the workers in the space and not endangering personal health.

[0021] In the above description, it should be noted that the terms "installed", "connected", "connected" and other corresponding terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components.

[0022] Obviously, the embodiments described above are only some of the embodiments of the present invention, not all of them. The drawings provide preferred embodiments of the present invention, but do not limit the scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Any equivalent structure made by using the contents of the present description and drawings, directly or indirectly applied to other related technical fields, is also within the scope of protection of the present invention.

Claims

1. A production process of water stickers, characterized in that: Step 1: Prepare a roll of transfer flower film with a pattern to be transferred printed on its surface, and at the same time prepare a roll of water transfer paper coated with water-soluble glue on its surface; Step 2: Pull out the water transfer paper from the water transfer paper roll. Before the water transfer paper enters the transfer process, spray water on the surface of the water transfer paper through an atomizer to keep the water-based glue at an appropriate humidity, so that the surface of the water transfer paper has adhesiveness; Step 3: Perform thermal transfer through a transfer machine: Pull out the transfer flower film from the transfer flower film roll and the water transfer paper pulled out in Step 2 simultaneously pass through the gap between the heating roller and the supporting roller on the transfer machine and the two are in contact. The heating roller heats the cured glue layer on the surface of the pattern on the transfer flower film to melt it, so that the pattern on the transfer flower film is pasted on the water transfer paper to obtain a water sticker with a pattern on its surface; Step 4: Wind up the water sticker with a take-up roller on the transfer machine for standby, and wind up the substrate of the transfer flower film with a waste material take-up roller.

2. The water sticker production process according to claim 1, wherein: It further includes Step 5: Coat a layer of transparent glue on the surface of the water sticker with the attached pattern obtained in Step 3 through a coating process. After the transparent glue is cured, a release film is formed on the surface of the water sticker to connect the patterns on the water sticker into a whole.

3. A water sticker production process as described in claim 1, characterized in that: The width of the gap between the heating roller and the supporting roller is 0.5 - 1 mm; the heating temperature in Step 3 is 120 °C.

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