Preparation process of curved screen light-transmitting soft film replacing foam

Abstract

The invention relates to the field of light-transmitting soft films, and discloses a preparation process of a foam-replaced curved screen light-transmitting soft film, which comprises the following steps of: paving a diffusion film on a printing table, printing debugged shading ink on the back surface of the diffusion film by using a screen printing plate, and then drying; printing the debugged light-transmitting color ink on the shading ink by using a screen printing plate, and then drying; printing the debugged diffusion white ink on the light-transmitting color ink by using a screen printing plate, and then drying; using a screen printing plate to irradiate the debugged blue light lamp with the yellow-to-white ink, printing the white ink on the diffused white ink, and then drying; printing the debugged specially-made foam on the yellow-to-white ink after being irradiated by the blue light lamp by using a screen printing plate, and then drying or curing by irradiating by using a UV (Ultraviolet) lamp; coating a layer of non-setting adhesive glue on the specially-made foam, then covering the non-setting adhesive glue with a release film, and then drying the non-setting adhesive glue; specially-made foam is adopted to replace traditional attaching foam; an integrated printing mode is adopted to replace an existing secondary attaching mode, and the problem that foam attaching is staggered and deviated is solved.

Description

Technical Field

[0001] The invention relates to the field of light-transmitting soft films, and in particular to a preparation process of a light-transmitting soft film for a curved screen replacing foam. Background Art

[0002] Curved screen light-transmitting soft film refers to a light-transmitting soft film used for curved screens. This soft film is used to protect the screen, increase the visual effect of the screen or improve the functionality of the screen. This soft film has light transmittance to ensure the clarity and brightness of the screen display. The following problems exist in the market: In the current preparation process of the curved screen light-transmitting soft film, the printed diffusion film and the foam need to be laminated twice, that is, the two are formed separately; thus, the abnormality rate during lamination is high, and when there is a deviation in the lamination alignment, rework is required, but the internal lamp beads will be damaged during the rework process, causing waste; and in order to produce the required pattern, the existing foam needs to be cut to reach the required pattern, which is time-consuming and wastes materials; therefore, it is urgent to develop a process to solve this problem; The technical problem to be solved by the present invention is to provide a process for preparing a light-transmitting soft film for a curved screen which can replace the traditional foam. Summary of the invention

[0003] The technical problem to be solved by the present invention is: to provide a preparation process of a curved screen light-transmitting soft film that can replace traditional foam; to use special foam to replace traditional bonding foam; to use printing to replace the existing secondary bonding method, thereby avoiding the problem of foam bonding misalignment; and compared with the secondary bonding method, the printing method has higher production efficiency and the output can reach 500K per day.

[0004] A process for preparing a light-transmitting soft film for a curved screen replacing foam, comprising the following steps: S1. Design and draw, use drawing software to make the pattern of required size, then produce film and make screen; S2. Prepare diffusion film, release film, prepare light-shielding ink, prepare light-transmitting color ink, prepare diffused white ink, prepare ink that turns yellow to white after being illuminated by blue light, prepare special foam, and prepare self-adhesive glue; S3, spread the diffusion film on the printing table, use the screen to print the adjusted light-shielding ink on the back of the diffusion film, and then dry it; S4, use the screen to print the adjusted light-transmitting color ink on the light-shielding ink in S3, and then dry it; S5, use the screen to print the adjusted diffuse white ink on the light-transmitting color ink in S4, and then dry it; S6, use the screen to illuminate the yellow-to-white ink after the debugged blue light, print it on the diffused white ink in S5, and then dry it; S7, use the screen to print the debugged special foam on the yellow-to-white ink after being illuminated by the blue light of S6, and then dry it or cure it with UV light; S8, apply a layer of self-adhesive glue on the special foam of S7, then cover the release film on the self-adhesive glue, and then dry; S9, cut the curved screen light-transmitting soft film prepared in S8 into required shapes, and then pack the finished products.

[0005] Compared with the prior art, the beneficial effects of the present invention are: the present invention replaces the foam preparation process of the curved screen transparent soft film, and adopts special foam to replace the traditional bonding foam; adopts an integrated printing method to replace the existing secondary bonding method, thereby avoiding the problem of foam bonding misalignment; and compared with the secondary bonding method, the printing method has higher production efficiency and the output can reach 500K per day.

[0006] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. DETAILED DESCRIPTION

[0007] 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.

[0008] In an embodiment of the present invention, a process for preparing a light-transmitting soft film for a curved screen replacing foam includes the following steps: S1. Design and draw, use drawing software to make the pattern of required size, then produce film and make screen; S2. Prepare diffusion film, release film, prepare light-shielding ink, prepare light-transmitting color ink, prepare diffused white ink, prepare ink that turns yellow to white after being illuminated by blue light, prepare special foam, and prepare self-adhesive glue; S3, spread the diffusion film on the printing table, use the screen to print the adjusted light-shielding ink on the back of the diffusion film, and then dry it; S4, use the screen to print the adjusted light-transmitting color ink on the light-shielding ink in S3, and then dry it; S5, use the screen to print the adjusted diffuse white ink on the light-transmitting color ink in S4, and then dry it; S6, use the screen to illuminate the yellow-to-white ink after the debugged blue light, print it on the diffused white ink in S5, and then dry it; S7, use the screen to print the debugged special foam on the yellow-to-white ink after being illuminated by the blue light of S6, and then dry it or cure it with UV light; S8, apply a layer of self-adhesive glue on the special foam of S7, then cover the release film on the self-adhesive glue, and then dry; S9, cut the curved screen light-transmitting soft film prepared in S8 into required shapes, and then pack the finished products.

[0009] Specifically, for design and drawing, as an example, AI software or PS software can be used for design and drawing to make the required pattern and size; after completion, a film file is generated for printing, and the corresponding screen is made according to the design; the diffusion film needs to choose a material suitable for light transmission and scattering light to ensure that its thickness and transparency meet the design requirements; the release film is used to prevent adhesion and facilitate subsequent processing, and a material with good detachment performance is selected; the light-shielding ink is black or opaque to prevent light from passing through; the light-transmitting color ink can be modulated into a specific color according to the design to ensure light transmittance and visual effect; the diffused white ink is used to enhance the light scattering effect, generally white; the yellow-to-white ink after blue light exposure can change from yellow to white after blue light exposure, increasing the visual appeal; special foam is used to ensure the softness and fit of the final product; self-adhesive glue is used to ensure the adhesion and durability of the final film; since the ink is printed on the back of the diffusion film, the reverse printing and front-viewing process is adopted, and the top layer is the light-shielding ink; the drying temperature is 65-95 degrees, and the drying time is 2-10 minutes.

[0010] Furthermore, the ingredients of the shading ink include: 66%-74% Baili TPU 101 gold oil, 8%-12% ethyl acetate, and 18%-22% carbon black powder; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, filter with a 100-mesh filter, and after filtering, let it stand for use.

[0011] Preferably, the ingredients of the shading ink include: 70% Baili TPU 101 gold oil, 10% ethyl acetate, and 20% carbon black powder.

[0012] Furthermore, the composition of the translucent color ink includes: 76%-84% Baili TPU 101 gold oil, 8%-12% ethyl resin, 8%-12% color powder; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, filter with a 100-mesh filter, and after filtering, let it stand for use.

[0013] Preferably, the composition of the light-transmitting color ink includes: 80% Baili TPU 101 gold oil, 10% ethyl resin, and 10% color powder.

[0014] Furthermore, the ingredients of the diffuse white ink include: 76%-84% Baili TPU 101 gold oil, 8%-12% ethyl ester, 1%-3% diffusion powder, and 7%-9% titanium dioxide; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, filter with a 100-mesh filter, and after filtering, let it stand for use.

[0015] Preferably, the composition of the diffuse white ink includes: 80% Baili TPU 101 gold oil, 10% ethyl ester, 2% diffusion powder, and 8% titanium dioxide.

[0016] Furthermore, the composition of the yellow-to-white ink after irradiation with blue light includes: 71%-79% Baili TPU 101 gold oil, 8%-12% ethyl ester, 1%-3% diffusion powder, 2%-4% titanium dioxide, fluorescent yellow powder 7.9%, fluorescent red powder 2.1%; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, filter with a 100-mesh filter, and after filtering, let it stand for use.

[0017] Preferably, the composition of the yellow-to-white ink after exposure to blue light includes: 75% Baili TPU 101 gold oil, 10% ethyl ester, 2% diffusion powder, 3% titanium dioxide, 7.9% fluorescent yellow powder, and 2.1% fluorescent red powder; specifically, Furthermore, the ingredients of the special foam include: 88%-92% Rongke Rk630 water-based resin, 8%-12 black ink; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, a 100-mesh filter is used for filtering, and after filtering, it is left to stand for use.

[0018] Preferably, 90% Rongke Rk630 water-based resin and 10% black ink; specifically, Rongke refers to Dongguan Rongke Polymer Materials Co., Ltd., and as an example, the Rongke Rk630 water-based resin manufactured by it can be used; the prepared special foam liquid can be cured and formed by drying after printing; the drying temperature is 65-95 degrees, and the drying time is 2-10 minutes; the special foam formed by this implementation is soft and environmentally friendly, and consumes low energy.

[0019] Furthermore, the ingredients of the special foam include: 70% Baili 110 TPU gold oil, 20% calcium carbonate, and 10% black ink; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, a 100-mesh filter is used for filtering, and after filtering, it is left to stand for use.

[0020] Specifically, Baili refers to Dongguan Baili Polymer Technology Co., Ltd. As an example, Baili 110 TPU gold oil manufactured by it can be used; the prepared special foam liquid can be cured and formed by drying after printing; the drying temperature is 65-95 degrees, and the drying time is 2-10 minutes; the special foam formed by this implementation method is soft and environmentally friendly, but the raw materials required are more than the method of using Rongke Rk630 water-based resin; Furthermore, the ingredients of the special foam include: 90% Zhongyi ZY-500 resin, 10% black ink; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after the stirring is completed, it is filtered through a 100-mesh filter, and after filtering, it is left to stand for use.

[0021] Specifically, Zhongyi refers to Dongguan Zhongyi Environmental Protection Materials Co., Ltd. As an example, the Zhongyi ZY-500 resin manufactured by it can be used; this resin is a UV curing resin, and the manufactured special foam liquid can be cured by irradiating it with a UV lamp for a few minutes after printing; the special foam formed by this implementation method has good softness, but will produce odor.

[0022] Furthermore, the ingredients of the special foam include: 90% KD-YS 1001 silica gel, 10% black ink; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after the stirring is completed, it is filtered through a 100-mesh filter, and after filtering, it is left to stand for use.

[0023] Specifically, Keduo refers to Dongguan Keduo Silicone Materials Co., Ltd. As an example, the Keduo KD-YS 1001 silicone rubber manufactured by it can be used; the prepared silicone special foam liquid can be cured and formed by drying after printing; the drying temperature is 65-95 degrees, and the drying time is 2-10 minutes; the special foam formed by this implementation method is relatively hard in softness.

[0024] Therefore, among the above four special foam components, the best performance component is 90% Rongke Rk630 water-based resin and 10% black ink; traditional foam needs to be formed by adding a foaming agent, and then bonded to the diffusion film after printing ink after forming, so the traditional process is more complicated and has a high rework rate.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A process for preparing a light-transmitting soft film for a curved screen that replaces foam. It is characterized in that The following steps are involved: S1. Design and draw, use drawing software to make the pattern of required size, then produce film and make screen; S2. Prepare diffusion film, release film, prepare light-shielding ink, prepare light-transmitting color ink, prepare diffused white ink, prepare ink that turns yellow to white after being illuminated by blue light, prepare special foam, and prepare self-adhesive glue; S3, spread the diffusion film on the printing table, use the screen to print the adjusted light-shielding ink on the back of the diffusion film, and then dry it; S4, use the screen to print the adjusted light-transmitting color ink on the light-shielding ink in S3, and then dry it; S5, use the screen to print the adjusted diffuse white ink on the light-transmitting color ink in S4, and then dry it; S6, use the screen to illuminate the yellow-to-white ink after the debugged blue light, print it on the diffused white ink in S5, and then dry it; S7, use the screen to print the debugged special foam on the yellow-to-white ink after being illuminated by the blue light of S6, and then dry it or cure it with UV light; S8, apply a layer of self-adhesive glue on the special foam of S7, then cover the release film on the self-adhesive glue, and then dry; S9, cut the curved screen light-transmitting soft film prepared in S8 into required shapes, and then pack the finished products.

2. According to claim 1, a process for preparing a light-transmitting soft film for a curved screen replacing foam, It is characterized in that The ingredients of the light-shielding ink include: 66%-74% Baili TPU 101 gold oil, 8%-12% ethyl acetate, and 18%-22% carbon black powder; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, filter with a 100-mesh filter, and after filtering, let it stand for use.

3. According to claim 1, a process for preparing a light-transmitting soft film for a curved screen replacing foam, It is characterized in that The ingredients of the translucent color ink include: 76%-84% Baili TPU 101 gold oil, 8%-12% ethyl resin, 8%-12% color powder; put the above ingredients in a small mixer and stir; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, filter with a 100-mesh filter, and after filtering, let it stand for use.

4. According to claim 1, a process for preparing a light-transmitting soft film for a curved screen replacing foam, It is characterized in that The ingredients of the diffuse white ink include: 76%-84% Baili TPU 101 gold oil, 8%-12% ethyl ester, 1%-3% diffusion powder, and 7%-9% titanium dioxide; the above ingredients are placed in a small mixer for stirring; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, filter with a 100-mesh filter, and after filtering, let it stand for use.

5. According to claim 1, a process for preparing a light-transmitting soft film for a curved screen replacing foam, It is characterized in that The composition of the yellow-to-white ink after exposure to blue light includes: 71%-79% Baili TPU 101 gold oil, 8%-12% ethyl ester, 1%-3% diffusion powder, 2%-4% titanium dioxide, fluorescent yellow powder 7.9%, fluorescent red powder 2.1%; put the above ingredients in a small mixer and stir; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, filter with a 100-mesh filter, and after filtering, let it stand for use.

6. The process for preparing a light-transmitting soft film for curved screens replacing foam according to claim 1, It is characterized in that The ingredients of the special foam include: 88%-92% Rongke Rk630 water-based resin, 8%-12 black ink; put the above ingredients in a small mixer and stir; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, use a 100-mesh filter to filter, and after filtering, let it stand for use.

7. The process for preparing a light-transmitting soft film for curved screens replacing foam according to claim 1, It is characterized in that The ingredients of the special foam include: 70% Baili 110 TPU gold oil, 20% calcium carbonate, and 10% black ink; put the above ingredients in a small mixer and stir; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, use a 100-mesh filter to filter, and after filtering, let it stand for use.

8. The process for preparing a light-transmitting soft film for curved screens replacing foam according to claim 1, It is characterized in that The ingredients of the special foam include: 90% Zhongyi ZY-500 resin, 10% black ink; put the above ingredients in a small mixer and stir; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, use a 100-mesh filter to filter, and after filtering, let it stand for use.

9. The process for preparing a light-transmitting soft film for curved screens replacing foam according to claim 1, It is characterized in that The ingredients of the special foam include: 90% KD-YS 1001 silica gel, 10% black ink; put the above ingredients in a small mixer and stir; the stirring time is 3 to 5 minutes; the stirring rate is 90 to 110 rpm; the temperature condition is room temperature; after stirring, use a 100-mesh filter to filter, and after filtering, let it stand for use.

10. The process for preparing a light-transmitting soft film for curved screens replacing foam according to claim 1, It is characterized in that The drying temperature is 65-95 degrees and the drying time is 2-10 minutes.