Water-based polymer rope net dip-coating dyeing emulsion

Abstract

The invention provides a water-based polymer rope net dip-coating dyeing emulsion, which is prepared from the following raw materials in parts by weight: 10 to 50 parts of water-based polyurethane emulsion, 10 to 50 parts of water-based resin emulsion, 10 to 50 parts of water-based adhesive emulsion, 10 to 50 parts of water-based titanium dioxide slurry, 10 to 50 parts of water-based dispersing agent, 10 to 50 parts of water-based leveling agent, 10 to 50 parts of water-based coupling agent and 0.5 to 10 parts of JFC soaking agent. The emulsion has excellent seepage force and adhesive force and can quickly and uniformly permeate into fibers, efficient coloring is achieved, and due to addition of the waterborne polyurethane emulsion, the waterborne resin emulsion and the waterborne adhesive, the dyeing effect is enhanced, and the strength and flexibility of the fibers are remarkably improved. According to the present invention, the water-based formula is adopted, no harmful solvent is contained, environmental protection requirements are met, no harmful gas is discharged during the operation process, health and safety of operators are ensured, the use method is simple, the dip dyeing time is short, the production efficiency is substantially improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of dyeing emulsions, in particular to a water-based polymer rope net dipping dyeing emulsion. Background Art

[0002] High-strength polyethylene fiber has always been one of the three major dyeing technology problems at home and abroad. Ultra-high molecular weight polyethylene fiber (UHMW PE), also known as high-strength high-modulus polyethylene fiber, is widely used in the fields of aerospace, military machinery, transportation, sports equipment, etc. as a specialty fiber and high-performance fiber due to its excellent mechanical properties, stable chemical properties and ideal mechanical properties. However, due to its high relative molecular weight, the orientation degree of polyethylene is also high, the molecular arrangement is regular, and the crystallinity is high, making dyeing more difficult. At present, conventional methods mainly include two kinds: one is to adopt the method of adding dyeing masterbatch, and the other is the method of modifying. The method of adding masterbatch is to add the masterbatch to the slices and then melt-spinning. This method can dye the fibers, but the compatibility between the masterbatch and the slices is poor, the rheology and spinnability of the melt are poor, and the introduction of the masterbatch causes the internal structure of the fibers obtained in subsequent production to be destroyed, greatly reducing the fiber strength, and failing to take advantage of its high strength. In addition, this production process has poor flexibility and is cumbersome to replace various colored yarn varieties, thus preventing large-scale application. Modification methods, such as dyeing under supercritical conditions, use carrier high-temperature steam, but the reaction conditions are harsh. Slight differences in temperature or pressure will affect the dyeing of the final product, resulting in poor dyeing, thus preventing large-scale application. This has become a major pain point in the dyeing industry. Summary of the Invention

[0003] In view of this, in order to solve the problems existing in the technical background, the present invention proposes a water-based polymer rope net dip coating dyeing emulsion. Specifically, it includes the following contents:

[0004] A water-based polymer rope net dip-dyeing emulsion comprises the following raw materials in weight ratio: 10-50 parts of water-based polyurethane emulsion, 10-50 parts of water-based resin emulsion, 10-50 parts of water-based adhesive emulsion, 10-50 parts of water-based titanium dioxide slurry, 10-50 parts of water-based dispersant, 10-50 parts of water-based leveling agent, 10-50 parts of water-based coupling agent, and 0.5-10 parts of JFC penetrant.

[0005] Furthermore, the aqueous polyurethane emulsion 10 parts, the aqueous resin emulsion 10 parts, the aqueous adhesive emulsion 10 parts, the aqueous titanium dioxide slurry 10 parts, the aqueous dispersant 10 parts, the aqueous leveling agent 10 parts, the aqueous coupling agent 10 parts, and the JFC penetrant 0.5 parts.

[0006] Furthermore, the aqueous polyurethane emulsion 50 parts, the aqueous resin emulsion 50 parts, the aqueous adhesive emulsion 50 parts, the aqueous titanium dioxide slurry 50 parts, the aqueous dispersant 50 parts, the aqueous leveling agent 50 parts, the aqueous coupling agent 50 parts, and the JFC penetrant 10 parts.

[0007] A method for preparing a water-based polymer rope net dip-dyeing emulsion comprises the following steps:

[0008] Step 1: Add water-based polyurethane emulsion, water-based resin emulsion, water-based adhesive emulsion, water-based titanium dioxide slurry, water-based dispersant, water-based leveling agent, water-based coupling agent and JFC penetrant into a mixing container in order;

[0009] Step 2: stirring evenly and filtering to obtain the water-based polymer rope net dip coating and dyeing emulsion.

[0010] Furthermore, when the emulsion is used, it needs to be diluted with purified water at a volume ratio of 1:3, and 6-8% of water-based color paste needs to be added. After stirring evenly, it can be used for dip-dyeing of fiber materials.

[0011] Furthermore, the emulsion is suitable for dip dyeing of various fiber materials, including but not limited to carpets, curtains, PE materials, PC materials, meshes, ropes and polymer fabric spinning materials.

[0012] The above technical solution has the following beneficial effects:

[0013] The emulsion of the present invention has excellent penetration and adhesion, can quickly and evenly penetrate into the interior of the fiber, and achieve efficient coloring. The addition of water-based polyurethane emulsion, water-based resin emulsion and water-based adhesive not only enhances the dyeing effect, but also significantly improves the strength and flexibility of the fiber.

[0014] The present invention adopts a water-based formula, does not contain harmful solvents, meets environmental protection requirements, and no harmful gases are emitted during operation, thereby ensuring the health and safety of operators. The method of use is simple, the dyeing time is short, and the production efficiency is greatly improved and the production cost is reduced. The emulsion is suitable for dip dyeing of various fiber materials and has broad market application prospects. The present invention realizes efficient and environmentally friendly dip dyeing of difficult-to-dye materials such as high-strength polyethylene fibers by scientifically proportioning multiple water-based components, and has significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The use effect of the water-based polymer rope net dip coating dyeing emulsion of the present invention Figure 1 ;

[0016] Figure 2 The use effect of the water-based polymer rope net dip coating dyeing emulsion of the present invention Figure 2 ;

[0017] Figure 3 The use effect of the water-based polymer rope net dip coating dyeing emulsion of the present invention Figure 3 ; DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] A water-based polymer rope net dip-dyeing emulsion comprises the following raw materials in weight ratio: 10-50 parts of water-based polyurethane emulsion, 10-50 parts of water-based resin emulsion, 10-50 parts of water-based adhesive emulsion, 10-50 parts of water-based titanium dioxide slurry, 10-50 parts of water-based dispersant, 10-50 parts of water-based leveling agent, 10-50 parts of water-based coupling agent, and 0.5-10 parts of JFC penetrant.

[0020] The aqueous polymer rope net dip dyeing emulsion of the present invention adopts the synergistic effect of multiple aqueous components to achieve efficient and environmentally friendly dip dyeing of difficult-to-dye materials such as high-strength polyethylene fibers. Among them, the aqueous polyurethane emulsion serves as the main film-forming substance, providing excellent flexibility and adhesion, so that the dyed fibers can maintain their original strength while enhancing wear resistance and weather resistance. The polar groups on its molecular chain can form hydrogen bonds or van der Waals forces with the fiber surface, improving the dye's fixation ability. The aqueous resin emulsion further enhances the emulsion's film-forming properties and mechanical strength, while improving the water resistance and chemical resistance of the dye layer, preventing the dye from falling off during subsequent use or washing. The role of the aqueous adhesive emulsion is to enhance the emulsion's wettability and adhesion to the fiber, ensuring that the dye evenly penetrates into the fiber interior and avoiding surface floating color.

[0021] As a white pigment and covering agent, water-based titanium dioxide can adjust the hiding power and base color of the dyeing system, playing a particularly key role in light-colored or highly saturated dyeing. Its nano-scale particles can also fill the microscopic pores on the fiber surface, enhancing dyeing uniformity. Water-based dispersants prevent pigment and dye particle aggregation through electrostatic repulsion and steric hindrance, ensuring emulsion stability and dyeing consistency. Water-based leveling agents reduce surface tension, promoting the spreading and penetration of dyes on the fiber surface, and minimizing color differences and streaking. Water-based coupling agents create a chemical bridge between fiber and dye, strengthening their bond and improving color fastness. JFC penetrants, as highly efficient penetrants, can rapidly reduce fiber surface tension, allowing the emulsion to quickly penetrate the fiber interior, shortening dyeing time and increasing dye uptake.

[0022] The interaction of these components forms a set of efficient dyeing system: the synergistic film building of polyurethane and resin creates a strong and flexible dyeing layer, the combination of adhesive and coupling agent ensures the firm combination of dye and fiber, and the combination of dispersant, leveling agent and penetrating agent optimizes the dispersibility and permeability of dye, making the dyeing process fast, uniform and environmentally friendly. The design of water-based formula avoids the use of organic solvents, not only meeting the environmental requirements, but also avoiding the problems of fiber strength loss and environmental pollution in traditional dyeing process. Through physical adsorption, chemical bonding and synergistic effect, the emulsion realizes efficient and high-fastness dyeing of difficult-to-dye materials, while maintaining the mechanical properties and processing convenience of the fiber.

[0023] In Example 1, a water-based high-molecular rope net dip coating dyeing emulsion was prepared, and the specific formula was as follows: water-based polyurethane emulsion 30 parts, water-based resin emulsion 25 parts, water-based adhesive emulsion 20 parts, water-based titanium white paste 15 parts, water-based dispersant 12 parts, water-based leveling agent 10 parts, water-based coupling agent 8 parts, JFC penetrating agent 3 parts. During preparation, the above raw materials were sequentially added to a mixing container and stirred at a speed of 500 rpm for 30 minutes until uniform, and then filtered to obtain the emulsion. When used, the emulsion was diluted with pure water at a ratio of 1:3, and 7% water-based blue paste was added. After stirring uniformly, the ultra-high molecular weight polyethylene (UHMW PE) rope net was dip coated and dyed, the dip coating time was 5 minutes, and the drying temperature was 80°C. The results showed that the color of the dyed rope net was uniform, the color fastness reached level 4-5 (ISO 105-C06 standard), and the fiber tensile strength retention rate was ≥95%, with no significant decrease in flexibility, indicating that the emulsion did not damage the mechanical properties of the fiber while ensuring the dyeing effect.

[0024] In Example 2, based on Example 1, the specific composition was: water-based polyurethane emulsion 40 parts, water-based resin emulsion 35 parts, water-based adhesive emulsion 30 parts, water-based titanium white paste 20 parts, water-based dispersant 15 parts, water-based leveling agent 12 parts, water-based coupling agent 10 parts, JFC penetrating agent 5 parts. The preparation method was the same as Example 1. After dilution, 8% water-based black paste was added to the emulsion, and the PE material carpet was dip coated and dyed, the dip coating time was 8 minutes, and the curing temperature was 100°C. The test results showed that the color depth of the carpet surface was significantly better than that of the traditional master batch dyeing method (color difference value ΔE <1.5), and the color loss rate was <3% after 50 washes (AATCC61-2013 standard). In addition, the emulsion also performed well on PC material net, with an adhesion test (ASTM D3359) reaching level 4B, proving its broad applicability.

[0025] The comparative example is as follows: the traditional masterbatch melt spinning method is used to dye UHMW PE fibers as a control. After 5% blue masterbatch is mixed with PE chips and melt-spun, the resulting fiber is colored, but the mechanical properties are significantly reduced: the tensile strength is 18% lower than that of the undyed fiber (GB / T3923.1-2013), and color spots appear on the fiber surface, and the color uniformity is poor (ΔE>5). In addition, changing the color requires cleaning the entire production line, which takes up to 6 hours, while the emulsion dyeing of the present invention only requires replacing the color paste, and the switching time is less than 30 minutes. Environmental tests show that the traditional process produces VOCs emissions (>120mg / m 3 ), and no harmful gases are detected in the emulsion of the present invention (GB 18582-2020 standard), and the environmental protection advantage is significant.

[0026] See also Figures 1 to 3 It can be seen from the effect diagram that the emulsion of the present invention has excellent penetration and adhesion, can quickly and evenly penetrate into the interior of the fiber, and achieve efficient coloring. The addition of water-based polyurethane emulsion, water-based resin emulsion and water-based adhesive not only enhances the dyeing effect, but also significantly improves the strength and flexibility of the fiber.

[0027] The present invention adopts a water-based formula, does not contain harmful solvents, meets environmental protection requirements, and no harmful gases are emitted during operation, thereby ensuring the health and safety of operators. The method of use is simple, the dyeing time is short, and the production efficiency is greatly improved and the production cost is reduced. The emulsion is suitable for dip dyeing of various fiber materials and has broad market application prospects. The present invention realizes efficient and environmentally friendly dip dyeing of difficult-to-dye materials such as high-strength polyethylene fibers by scientifically proportioning multiple water-based components, and has significant economic and social benefits.

[0028] The above describes the basic principles and main features of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the invention to be protected. The scope of protection of the invention is defined by the attached claims and their equivalents.

Claims

1. A water-based polymer rope net dip coating dyeing emulsion, characterized in that: According to the weight ratio, the raw materials include: 10-50 parts of water-based polyurethane emulsion, 10-50 parts of water-based resin emulsion, 10-50 parts of water-based adhesive emulsion, 10-50 parts of water-based titanium dioxide slurry, 10-50 parts of water-based dispersant, 10-50 parts of water-based leveling agent, 10-50 parts of water-based coupling agent, and 0.5-10 parts of JFC penetrant.

2. The aqueous polymer rope net dip coating and dyeing emulsion according to claim 1, characterized in that: The aqueous polyurethane emulsion is 10 parts, the aqueous resin emulsion is 10 parts, the aqueous adhesive emulsion is 10 parts, the aqueous titanium dioxide slurry is 10 parts, the aqueous dispersant is 10 parts, the aqueous leveling agent is 10 parts, the aqueous coupling agent is 10 parts, and the JFC penetrant is 0.5 parts.

3. The aqueous polymer rope net dip coating and dyeing emulsion according to claim 1, characterized in that: The aqueous polyurethane emulsion is 50 parts, the aqueous resin emulsion is 50 parts, the aqueous adhesive emulsion is 50 parts, the aqueous titanium dioxide slurry is 50 parts, the aqueous dispersant is 50 parts, the aqueous leveling agent is 50 parts, the aqueous coupling agent is 50 parts, and the JFC penetrant is 10 parts.

4. A method for preparing a water-based polymer rope net dip-dyeing emulsion, characterized in that: The steps include: Step 1: Add water-based polyurethane emulsion, water-based resin emulsion, water-based adhesive emulsion, water-based titanium dioxide slurry, water-based dispersant, water-based leveling agent, water-based coupling agent and JFC penetrant into a mixing container in order; Step 2: stirring evenly and filtering to obtain the water-based polymer rope net dip coating and dyeing emulsion.

5. The aqueous polymer rope net dip coating and dyeing emulsion according to claim 1, characterized in that: When using, the emulsion needs to be diluted with pure water at a volume ratio of 1:3, and 6-8% of water-based color paste needs to be added. After stirring evenly, it can be used for dip dyeing of fiber materials.

6. The aqueous polymer rope net dip coating and dyeing emulsion according to claim 1, characterized in that: The emulsion is suitable for dip dyeing of various fiber materials, including but not limited to carpets, curtains, PE materials, PC materials, meshes, ropes and polymer fabric spinning materials.

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