Nano-dyeing technology for garments

Abstract

The invention discloses a nano-dyeing process for garments, and relates to the technical field of garment processing, wherein the nano-dyeing process for garments comprises: (1) a washing and dyeing device scours the garments to remove impurities on the surface of the garments to obtain pretreated garments; (2) using nano-dispersed dyes, dyeing the pretreated garments obtained in step (1) twice by the washing and dyeing device to obtain dyed garments, wherein the depth of the finished product color after the first dyeing is 60%-70%; (3) using a fixing agent and a softener, processing the dyed garments obtained in step (2) by the washing and dyeing device to obtain fixed-color garments; (4) a drying device dehydrates and dries the fixed-color garments to obtain dried garments. The technical solution provided by the present invention can solve the problems that the existing cotton and linen garments have poor color fastness and are easy to fade after dyeing, and can present artistic characteristics such as retro nostalgia with mottled effects.

Description

Technical Field

[0001] The invention relates to the technical field of garment processing, in particular to a garment nano-dyeing process. Background Art

[0002] Garment dyeing is a textile dyeing process that involves completely immersing the supported garment in the dye solution for dyeing.

[0003] Existing garments, especially cotton and linen garments, have poor color fastness and are easy to fade after dyeing. Summary of the invention

[0004] The main purpose of the present invention is to propose a nano-dyeing process for ready-made clothes, aiming to solve the problem that the existing ready-made clothes made of cotton and linen have poor color fastness and are easy to fade after dyeing.

[0005] To achieve the above-mentioned purpose, the garment nano-dyeing process proposed in the present invention adopts a garment processing system, wherein the garment processing system includes a washing and dyeing device and a drying device, and the garment nano-dyeing process includes:

[0006] (1) The washing and dyeing device scours the cotton and linen garments to remove impurities on the surface of the garments, obtains the pre-treated garments, and dries them;

[0007] (2) using nano-dispersed dyes to dye the pretreated garment obtained in step (1) twice through a washing and dyeing device to obtain dyed garments, and drying the dyed garments, wherein the first dyeing results in a finished product having a color depth of 60% to 70%;

[0008] (3) using a color fixing agent and a softener to treat the dyed garment obtained in step (2) through a dyeing and washing device to obtain a color-fixed garment, and drying the garment, wherein the color fixing agent is added first and the softener is added later, wherein 50 grams of the color fixing agent is added for every 500 grams of the garment.

[0009] In one embodiment, before the laundry washing and dyeing device pre-treats the garments in step (1), the garments need to be placed in a clean water tank at 60°C-70°C, and a detergent and a fiber bulking agent are added thereto, and the garments are soaked for 20min-40min.

[0010] In one embodiment, the scouring temperature is 60° C.-70° C., and the scouring time is 2 h.

[0011] In one embodiment, in step (2), the garment needs to be washed with enzymes and dried in a washing and dyeing device between the first dyeing and the second dyeing.

[0012] In one embodiment, the enzyme washing time is 40 min-70 min.

[0013] In one embodiment, the first dyeing temperature is controlled at a constant water temperature of 70° C., the dyeing time is 3 h to 5 h, and the second dyeing time is 1 h to 3 h.

[0014] In one embodiment, between step (2) and step (3), the dyed garment needs to be soaped and dried by a washing and dyeing device.

[0015] In one embodiment, the water temperature of soap washing is 70° C.-80° C., and the soap washing time is 30 min-50 min.

[0016] In one embodiment, the washing and dyeing device is configured as an electrically heated washing and dyeing machine.

[0017] In one embodiment, the electric heating washing and dyeing machine includes a base, a drum module, an electric heating module, a driving module, a batching module, an inlet and outlet module, and a control module;

[0018] The axis of the drum module is horizontally arranged and installed on the base. The electric heating module is installed on the drum module and is used to heat the water in the drum module. The driving module is installed on the base and is used to drive the drum module to rotate. The water inlet and outlet module is used to control the water inlet and outlet of the drum module. The batching module is used to assist in proportioning the input materials.

[0019] The technical solution of the present invention adopts 50 grams of color fixing agent for every 500 grams of finished garments, and cooperates with the above-mentioned method of first scouring, then dyeing, and finally color fixing and softening, so that the dye can be better combined with the cotton and linen fibers, and the color fixing agent can make the color fastness of the finished garment better, so that the color fastness of the finished garment can reach at least level 4, reducing the possibility of fading, thereby solving the problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of a garment according to an embodiment of the garment nano-dyeing process provided by the present invention;

[0022] Figure 2 This is a schematic structural diagram of an embodiment of a washing and dyeing device in a garment processing system provided by the present invention.

[0023] Description of Figure Numbers:

[0024] 100. Washing and dyeing device; 110. Base; 120. Drum module; 130. Drive module; 140. Batching module; 141. Electronic scale; 142. Enclosure; 150. Water inlet and outlet module; 151. Water inlet pipe; 152. Drain pipe; 160. Control module.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The invention provides a nano-dyeing process for ready-made garments.

[0030] See also Figure 2 In one embodiment of the present invention, the garment nano-dyeing process adopts a garment processing system, and the garment processing system includes a washing and dyeing device and a drying device, wherein the washing and dyeing device 100 and the drying device can adopt an industrial washing and dyeing machine and an industrial drying machine, and the industrial washing and dyeing machine can adopt an XGP-100 industrial washing and dyeing machine, and the industrial drying machine can adopt a SWA801-30 electric heating industrial drying machine.

[0031] The garment nano-dyeing process comprises:

[0032] (1) The washing and dyeing device scours the cotton and linen garments to remove impurities on the surface of the garments, obtain pre-treated garments, and dry them. Scouring in step (1) can remove impurities (oil, ash, and other non-cellulose substances) on the surface of the garments. At the same time, the scouring process can make the fibers of the cotton and linen garments fluffy, making the surface of the treated fibers smoother and flatter, increasing the contact area between the dye and the fiber, improving the subsequent dye absorption efficiency, making the color more vivid and consistent, and making the garment more beautiful (see Figure 1 Finished product).

[0033] (2) Using nano-dispersed dyes, dyeing the pre-treated garments obtained in step (1) twice through a washing and dyeing device to obtain dyed garments, and drying, wherein the first dyeing obtains a color depth of 60%-70% of the finished product; using nano-dispersed dyes to dye the scoured garments, since the fiber structure after scouring is more compact, the dye molecules are more likely to form stable chemical bonds with the fibers, thereby enhancing the color fastness, including washing resistance, friction resistance and light resistance; due to the use of nano-dispersed dyes, the dyes can be better fixed on the fibers, reducing the amount of unbound dyes, i.e., the so-called "floating color", which not only improves the color fastness, but also reduces the pollution to the environment during washing, thereby achieving the purpose of environmental protection and ecology. It should be noted that the specific color of the nano-dispersed dyes can be selected according to the requirements. Meanwhile, in this embodiment, dyeing is performed twice, wherein the first dyeing results in a 60%-70% depth of the finished product color. Furthermore, the first dyeing results in a 60% depth of the finished product color. By using the two dyeing processes to dye the cotton and linen material, the final dyeing effect can be better controlled, and the problem of over-dyeing in one dyeing can be avoided, thereby reducing the problem of the defect rate of the finished product. At the same time, by dyeing twice, it can be ensured that the dye penetrates into the fiber more evenly (see Figure 1 Finished product).

[0034] (3) Using a color fixing agent and a softener, the dyed garment obtained in step (2) is treated by a washing and dyeing device to obtain a color-fixed garment, and then dried, wherein the color fixing agent is added first and the softener is added later, wherein 50 grams of the color fixing agent is configured for every 500 grams of the garment, and the treatment sequence of first fixing and then softening can make the dyed fabric easier to carry out subsequent processing, thereby improving production efficiency, and at the same time, the color fixing agent can first contact with the nano-dispersed dye in the garment, and the color fixing agent can further strengthen the binding force between the dye and the fiber, further improve the color fastness, and reduce floating color. At the same time, by configuring 50 grams of the color fixing agent for every 500 grams of the garment, and by combining the above-mentioned method of first scouring, then dyeing, and finally fixing and softening, the dye can be better combined with the cotton and linen fibers, and the color fixing agent can make the color fastness of the final garment better, so that the color fastness of the garment reaches at least level 4, reducing the possibility of fading, thereby solving the problems existing in the prior art. At the same time, it can also make the dyed garment present retro and nostalgic artistic characteristics such as mottled effects (see Figure 1 Finished product). Further, in some embodiments, the color fixing agent may be a high-efficiency formaldehyde-free color fixing agent DR-601.

[0035] It should be noted that the cotton and linen garments are dried after each step in order to reduce the moisture in the cotton and linen garments and prevent excessive moisture from affecting the next process.

[0036] In one embodiment, before the washing and dyeing device pre-treats the garment in step (1), the garment needs to be placed in a clean water tank at 60°C-70°C, and a detergent and a fiber bulking agent are added and soaked for 20min-40min. It should be noted that the clean water tank can be a washing and dyeing device. At this time, when the washing and dyeing device is filled with clean water and the clean water is kept at 60°C-70°C, it is a clean water tank. In this way, the garment can avoid changing equipment during the dyeing process. Furthermore, by adding a detergent and a fiber bulking agent before scouring and soaking for 20min-40min, this time is enough for the detergent and the fiber bulking agent to fully play their role, ensuring that all fibers are properly treated. At the same time, this also avoids excessive fiber expansion or other adverse effects that may be caused by soaking for too long. Furthermore, the detergent can effectively dissolve and suspend grease, wax, dust and other chemical substances remaining in the processing process on the surface of the fabric. Warm water at 60°C-70°C helps to activate the active ingredients of the detergent, enhance its cleaning effect, and make it easier to remove dirt. Fiber bulking agents can make the fibers swell slightly and open up the pores between the fibers, which is conducive to better penetration of chemicals into the fibers during the scouring process. This not only improves the scouring effect, but also allows the dye to adhere to the fibers more evenly during the subsequent dyeing process. By pre-softening the fibers, the entanglement and shrinkage between the fibers during scouring can be reduced, ensuring that all fibers are fully treated while maintaining the dimensional stability of the fabric. At the same time, adding detergents and fiber bulking agents to treat cotton and linen garments before scouring can remove the residual detergents and fiber bulking agents in the cotton and linen materials during the scouring process.

[0037] In one embodiment, the scouring temperature is 60°C-70°C, and the scouring time is 2 hours. In this way, the alkaline chemicals (such as caustic soda) used in the scouring process can further dissolve and remove natural impurities in the fiber, including wax, pectin, ash and other non-cellulose substances. At the same time, 2 hours is enough for the alkaline chemicals to fully act on the fiber to ensure that all impurities are effectively removed. Furthermore, this also avoids fiber damage or other adverse effects that may be caused by too long a treatment time. Appropriate scouring time also helps to ensure the uniformity and consistency of the treatment and improve product quality. And the scouring temperature of 60°C-70°C is relatively low, which can save energy while ensuring the treatment effect. Since the washing and dyeing machine adopts an industrial electric heating washing and dyeing machine, the washing and dyeing machine can control the scouring temperature at 60°C-70°C.

[0038] In one embodiment, in step (2), the garments are further subjected to enzyme washing and drying operations through a dyeing and washing device between the first dyeing and the second dyeing. First, enzyme washing (enzyme washing) can remove the tiny fluff (i.e., "fluff") on the fiber surface, making the fabric surface smoother and more delicate. Cotton and linen garments treated with enzyme washing will appear softer and more comfortable, while maintaining the good air permeability of natural fibers. Enzyme washing can also slightly polish the fiber surface, giving the fabric a natural luster and making it more beautiful in appearance. The two dyeings plus the intermediate enzyme washing and drying operations can make the color and texture of each batch of garments more consistent, reduce the differences between batches, and improve the consistency and stability of product quality.

[0039] In one embodiment, the enzyme washing time is 40 minutes to 70 minutes. 40 minutes to 70 minutes is enough for the enzyme to fully act on the fiber surface, decompose and remove micro-fluff (fuzz) and other impurities. This time period can ensure that all exposed fibers are effectively treated.

[0040] In one embodiment, the first dyeing temperature is controlled at a constant water temperature of 70°C, and the dyeing time is 3h-5h. The longer dyeing time and higher temperature help the nano-dispersed dye to penetrate deeper into the fiber, ensuring a strong bond between the dye and the fiber; 70°C is a relatively mild temperature but sufficient to activate the dye molecules, so that the dye can better adhere to the fiber surface, while avoiding the potential damage of the fiber structure to the high temperature. The second dyeing time is 1h-3h. It should be noted that the second dyeing temperature is also controlled at a constant water temperature of 70°C. The shorter second dyeing time is mainly used to further deepen the color, especially when a dark tone or high saturation is required. Since the first dyeing has provided a good base color for the fiber, the second dyeing can effectively increase the color concentration in a short time. At the same time, when the color is not ideal after the first dyeing, it can be fine-tuned by the second dyeing to achieve the desired color effect. Compared with concentrating all dyeing steps in a long-term treatment, dyeing in two times can improve production efficiency while ensuring the effect. Especially for mass production, this helps to shorten the overall processing cycle.

[0041] In one embodiment, between step (2) and step (3), the dyed garment needs to be soaped and dried by a washing and dyeing device. Soaping can effectively remove floating colors, making the dyes finally fixed on the fibers purer, thereby improving the washing, friction and light fastness of the finished product. Auxiliary agents (such as dispersants, penetrants, etc.) used in the dyeing process may remain on the fabric. Soaping can completely remove these residual substances, avoid them from interfering with subsequent color fixation or other processing steps, improve the subsequent color fixation quality, and make the cotton and linen garments have better color fastness.

[0042] In one embodiment, the water temperature of soap washing is 70°C-80°C, and the soap washing time is 30min-50min. 70°C-80°C is a relatively high temperature range, which can effectively activate the active ingredients in the soap detergent. The time range of 30min to 50min provides sufficient treatment time to ensure that all floating colors are fully removed. Longer treatment time can achieve good cleaning effects under milder conditions and reduce potential damage to the fiber structure.

[0043] In one embodiment, the washing and dyeing device configuration 100 is an electrically heated washing and dyeing machine. Furthermore, the electrically heated washing and dyeing machine is adopted mainly because the electrically heated washing and dyeing machine can provide a water temperature environment of 80°C, so that the above-mentioned multiple processes can be completed in one device, avoiding the use of multiple devices, and can effectively reduce the cost of nano-dyeing of ready-made garments.

[0044] In one embodiment, reference Figure 2 The electric heating washing and dyeing machine includes a base 110, a drum module 120, an electric heating module, a driving module 130, a batching module 140, an inlet and outlet module 150 and a control module 160. The control module 160 can adjust the temperature inside the drum module 120 and adjust the water temperature, wherein the control module 160 includes a PLC control unit; the axis of the drum module 120 is horizontally arranged and installed on the base, the electric heating module is installed on the drum module, and is used to heat the water in the drum module, wherein the electric heating module can be a stainless steel heating rod, and the driving module 130 is installed on the base 110. It should be noted that the driving module 130 includes an electric The machine and transmission part 131, wherein the transmission part is a belt transmission structure, the belt transmission structure connects the motor and the drum module, the motor is installed on the base, the driving module 130 is used to drive the drum module to rotate, the water inlet and outlet module 150 is used to control the water inlet and outlet of the drum module, wherein the water inlet and outlet module 150 includes a water inlet pipe 151 and a water outlet pipe 152 connected to the drum module 120, wherein the water inlet pipe 151 and the water outlet pipe 152 are both provided with a valve body, the valve body can be a manual valve body, or a solenoid valve body, when the valve body is configured as a solenoid valve body, at this time the control module 160 can also control the solenoid valve body, and the batching module is used to assist in the proportioning of the input materials. It should be noted that the drum module 120 is used to stir and dye the finished clothes, the driving module rotates through the drum, and when the drum rotates, the finished clothes in the drum can be stirred, and when the drum does not rotate, a certain volume of dye liquid is stored in the drum, and at this time the dye liquid can dye the finished clothes in the drum.

[0045] In some embodiments, the batching module 140 includes an electronic scale 141 and a batching barrel. The electronic scale 142 is provided with an arc-shaped enclosure, which is used to limit the batching barrel to the electronic scale to prevent the batching barrel from slipping off the electronic scale. It should be noted that the batching barrel can enter and exit the arc-shaped enclosure in a straight up and down manner.

[0046] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A garment nano-dyeing process, using a garment processing system, the garment processing system comprising a washing and dyeing device and a drying device, characterized in that: The garment nano-dyeing process comprises: (1) The washing and dyeing device scours the cotton and linen garments to remove impurities on the surface of the garments, obtains the pre-treated garments, and dries them; (2) using nano-dispersed dyes to dye the pretreated garment obtained in step (1) twice through a washing and dyeing device to obtain dyed garments, and drying the dyed garments, wherein the first dyeing results in a finished product having a color depth of 60% to 70%; (3) using a color fixing agent and a softener to treat the dyed garment obtained in step (2) through a dyeing and washing device to obtain a color-fixed garment, and drying the garment, wherein the color fixing agent is added first and the softener is added later, wherein 50 grams of the color fixing agent is added for every 500 grams of the garment.

2. The garment nano-dyeing process according to claim 1, characterized in that: Before the washing and dyeing device pre-treats the garments in step (1), the garments need to be placed in a clean water tank at 60°C-70°C, and a detergent and a fiber bulking agent are added thereto, and the garments are soaked for 20min-40min.

3. The garment nano-dyeing process according to claim 2, characterized in that: The boiling temperature is 60℃-70℃ and the boiling time is 2h.

4. The garment nano-dyeing process according to claim 3, characterized in that: In step (2), between the first dyeing and the second dyeing, the garment needs to be washed with enzymes and dried in a dyeing and washing device.

5. The garment nano-dyeing process according to claim 4, characterized in that: The enzyme washing time is 40min-70min.

6. The garment nano-dyeing process according to claim 5, characterized in that: The first dyeing temperature is controlled at a constant water temperature of 70°C, the dyeing time is 3h-5h, and the second dyeing time is 1h-3h.

7. The garment nano-dyeing process according to claim 6, characterized in that: Between step (2) and step (3), the dyed garments need to be soaped and dried by a washing and dyeing device.

8. The garment nano-dyeing process according to claim 7, characterized in that: The water temperature for soap washing is 70℃-80℃, and the soap washing time is 30min-50min.

9. The garment nano-dyeing process according to any one of claims 1 to 8, characterized in that: The washing and dyeing device is configured as an electrically heated washing and dyeing machine.

10. The garment nano-dyeing process according to claim 9, characterized in that: The electric heating washing and dyeing machine comprises a base, a drum module, an electric heating module, a driving module, a batching module, an inlet and outlet module and a control module; The axis of the drum module is horizontally arranged and installed on the base. The electric heating module is installed on the drum module and is used to heat the water in the drum module. The driving module is installed on the base and is used to drive the drum module to rotate. The water inlet and outlet module is used to control the water inlet and outlet of the drum module. The batching module is used to assist in proportioning the input materials.

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