Dupont paper digital printing fabric manufacturing process

Abstract

The invention discloses a Dupont paper digital printing fabric manufacturing process which comprises the following steps: step 1, performing corona treatment on Dupont paper in a low-temperature environment by using a corona treatment device to obtain physically modified Dupont paper; 2, padding the physically modified Dupont paper in a cationic modifier to obtain surface chemical cationic modified Dupont paper; 3, digital ink-jet printing is conducted on Dupont paper through digital printing equipment, and Dupont paper digital printing fabric is obtained; 4, coating finishing is conducted on the digitally-printed Dupont paper through nanometer organic silicon coating glue, and the high-fastness digitally-printed Dupont paper fabric is obtained. The production process has the beneficial effects that the Dupont paper produced by the process has the characteristics of good water resistance, high rubbing fastness, no fading of patterns in the use process and the like, various application standards are met, and meanwhile, the latex digital printing process is adopted, so that the production process is water-free, clean and environment-friendly.

Description

Technical Field

[0001] The invention relates to the technical field of digital printing of textiles, in particular to a process for producing a DuPont paper digital printing fabric. Background Art

[0002] The so-called "DuPont paper" in the market is actually two materials produced by DuPont: one is a high-density polyethylene material called Tyvek, and its Chinese name is Tyvek; the other is a meta-aramid fiber material called Nomex, and its Chinese name is Nomex; Tyvek was invented in the 1950s. Tyvek is a high-density polyethylene made by hot-melting polymers and then thermally bonding them into continuous filaments using flash evaporation technology. This unique process technology allows Tyvek to combine the material properties of paper, film and fabric in one, and it is waterproof, breathable, lightweight, strong, tear-resistant, puncture-resistant, highly reflective, diffusely reflective, UV-resistant, with unique texture and touch, and is environmentally friendly and recyclable; DuPont paper has a wide range of uses, and is often used for waterproof and breathable materials for exterior walls and roofs, sterilization packaging materials for medical equipment, and chemical protective clothing in the field of industrial personal protection; DuPont paper is also commonly seen in various civilian designs and creative products, such as fashionable home furnishings, fashion, art, cultural and creative products, environmentally friendly and creative packaging, etc.

[0003] DuPont paper can be used in many clothing and apparel products, but the existing DuPont paper is thin and smooth, and the surface texture is uneven, resulting in poor printing fastness, uneven color, and poor water resistance on DuPont paper, which seriously affects the use of DuPont paper.

[0004] In view of the above situation, it is necessary to improve the existing DuPont paper fabric production process so that it can adapt to the current needs of DuPont paper printing processing. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a process for producing a DuPont paper digital printing fabric, comprising the following steps:

[0006] Step 1. The DuPont paper is corona treated in a low temperature environment using a corona treatment device to obtain physically modified DuPont paper;

[0007] Step 2. The physically modified DuPont paper is dipped into a cationic modifier to obtain a surface chemically cation-modified DuPont paper;

[0008] Step 3. Use digital printing equipment to digitally inkjet print DuPont paper to obtain DuPont paper digital printed fabric;

[0009] Step 4. Use nano-silicone coating adhesive to coat the digitally printed DuPont paper to obtain a high-fastness digitally printed DuPont paper fabric.

[0010] As a further supplement to the technical solution, in step 1, the corona treatment voltage is 8000-10000V, and the corona treatment speed is 30-40m / min.

[0011] To further supplement the technical solution, the specific production process in step 2 adopts two dipping and two rolling, with a rolling rate of about 40-60%, and drying at 90-100° C. to obtain DuPont paper with surface chemical cation modification.

[0012] As a further supplement to the technical solution, the cationic modifier in step 2 is one of a reactive cationic modifier containing an epoxy group, a reactive cationic modifier containing an ethoxy group, and a reactive cationic modifier containing an amino group.

[0013] As a further supplement to the technical solution, the concentration of the cationic working solution is 5-8%.

[0014] As a further supplement to the technical solution, in step three, the digital inkjet printing uses latex ink, which is then dried at 90-100° C. to obtain DuPont paper digital printing fabric.

[0015] As a further supplement to the technical solution, the latex ink is prepared with nano-scale dispersed color paste and nano-scale polyurethane colloid solution as main components, and the ink forms a film and solidifies at 80-90°C.

[0016] To further supplement the technical solution, in step 4, nano-organic silicon coating glue is used for coating finishing, and the coating amount is 10-20g / cm 3 , speed is 40-60m / min, and high fastness digital printed DuPont paper fabric is obtained at 80-100℃.

[0017] The beneficial effect is that the DuPont paper is physically and chemically modified through fabric corona finishing - DuPont paper fabric modification - latex coating digital printing - post-processing process, so as to improve the bonding performance and hydrophilicity of the DuPont paper. The DuPont paper produced by this process has the characteristics of good water resistance, high friction fastness, and no fading of the pattern during use, meeting various application standards. At the same time, the present invention adopts the latex digital printing process, and the production process is water-free, clean and environmentally friendly. DETAILED DESCRIPTION

[0018] In order to make the technical solution more clear to those skilled in the art, the technical solution of the present invention will be described in detail below:

[0019] A process for producing a DuPont paper digital printing fabric comprises the following steps:

[0020] Step 1. The DuPont paper is subjected to corona treatment in a corona treatment device in a low temperature environment to obtain physically modified DuPont paper; wherein the corona treatment voltage is 8000-10000V, and the corona treatment speed is 30-40m / min.

[0021] Step 2. The physically modified DuPont paper is dipped into a cationic modifier, wherein the cationic modifier is one of a reactive cationic modifier containing an epoxy group, a reactive cationic modifier containing an ethoxy group, and a reactive cationic modifier containing an amino group; the concentration of the cationic working solution is 5-8%; the production process adopts two dips and two rolls, the roll-off rate is about 40-60%, and the DuPont paper with surface chemical cation modification is dried at 90-100 ° C.

[0022] Step 3. Use digital printing equipment to digitally inkjet print DuPont paper. Digital inkjet printing uses latex ink, wherein the latex ink is formulated with nano-scale dispersed color paste and nano-scale polyurethane colloid solution as main components. The ink is film-formed and solidified at 80-90°C, and then dried at 90-100°C to obtain DuPont paper digital printing fabric;

[0023] Step 4. Use nano silicone coating glue to coat the digitally printed DuPont paper. Use a coating machine to coat it. The coating amount is 10-20g / cm 3 , speed is 40-60m / min, and high fastness digital printed DuPont paper fabric is obtained at 80-100℃.

[0024] The invention provides a process for producing a DuPont paper digital printing fabric, which includes physically and chemically modifying the DuPont paper through fabric corona finishing-DuPont paper fabric modification-latex coating digital printing-post-treatment process to improve the bonding performance and hydrophilicity of the DuPont paper; the DuPont paper produced by this process has good water resistance, high friction fastness, and the pattern does not fade during use, meeting various application standards.

[0025] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A process for producing DuPont paper digital printing fabric, characterized in that: The following steps are involved: Step 1. The DuPont paper is corona treated in a low temperature environment using a corona treatment device to obtain physically modified DuPont paper; Step 2. The physically modified DuPont paper is dipped into a cationic modifier to obtain a surface chemically cation-modified DuPont paper; Step 3. Use digital printing equipment to digitally inkjet print DuPont paper to obtain DuPont paper digital printed fabric; Step 4. Use nano-silicone coating adhesive to coat the digitally printed DuPont paper to obtain a high-fastness digitally printed DuPont paper fabric.

2. A DuPont paper digital printing fabric production process according to claim 1, characterized in that: In step 1, the corona treatment voltage is 8000-10000V, and the corona treatment speed is 30-40m / min.

3. A DuPont paper digital printing fabric production process according to claim 2, characterized in that: The specific production process in step 2 adopts two dipping and two rolling, with a rolling rate of about 40-60%, and drying at 90-100° C. to obtain DuPont paper with surface chemical cation modification.

4. A DuPont paper digital printing fabric production process according to claim 3, characterized in that: The cationic modifier in the step 2 is one of a reactive cationic modifier containing an epoxy group, a reactive cationic modifier containing an ethoxy group, and a reactive cationic modifier containing an amino group.

5. A DuPont paper digital printing fabric production process according to claim 4, characterized in that: The concentration of the cationic working solution is 5-8%.

6. A DuPont paper digital printing fabric production process according to claim 1, characterized in that: In the step 3, the digital inkjet printing uses latex ink, and then is dried at 90-100° C. to obtain DuPont paper digital printing fabric.

7. A process for producing DuPont paper digital printing fabric according to claim 6, characterized in that: The latex ink is prepared from nano-scale dispersed color paste and nano-scale polyurethane colloid solution as main components, and the ink forms a film and solidifies at 80-90°C.

8. A process for producing DuPont paper digital printing fabric according to claim 7, characterized in that: In step 4, nano-organic silicon coating glue is used for coating finishing, and the coating amount is 10-20g / cm 3 , speed is 40-60m / min, and high fastness digital printed DuPont paper fabric is obtained at 80-100℃.