Preparation method of nylon elastic embossed belt and nylon elastic embossed belt
The method enhances color fastness and maintains embossing clarity in nylon elastic belts by using low-temperature spandex fibers and sequential color fixing agents, addressing the issues of deteriorating color fastness and blurred embossing after washing.
Patent Information
- Application Number
- CN202411573177.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2024-12-17
AI Technical Summary
Nylon elastic embossed belts experience deteriorating color fastness and blurred embossing after home washing due to traditional embossing processes.
A preparation method involving low-temperature settable spandex fibers, sequential use of first and second color fixing agents, and controlled embossing conditions to enhance color fastness and maintain embossing clarity.
The method results in nylon elastic embossed belts with improved color fastness and clear embossing effects after washing, achieved through the use of low-temperature spandex fibers and specific color fixing agents that form hydrogen bonds and cross-linking structures.
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Abstract
Description
Technical Field
[0001] The present application relates to the field of textile technology, and in particular to a preparation method of a nylon elastic embossed belt and a nylon elastic embossed belt. Background Art
[0002] Nylon elastic belts are widely used in clothing, luggage, pet belts, sports equipment, travel supplies and other usage scenarios. As consumers' diversified and differentiated demands gradually increase, nylon elastic belts usually need to be embossed to obtain nylon elastic embossed belts with different patterns or logos. However, the color fastness of traditional nylon elastic embossed belts will deteriorate after embossing, and the embossing will become lighter and blurred after home washing. Summary of the invention
[0003] Based on this, it is necessary to provide a preparation method of a nylon elastic embossed belt and a nylon elastic embossed belt. The preparation method of the nylon elastic embossed belt of the present application can make the nylon elastic embossed belt have higher color fastness and still maintain a clear embossed effect after home washing.
[0004] In a first aspect, the present application provides a method for preparing a nylon elastic embossed tape, comprising the following steps:
[0005] A nylon elastic embossed belt pre-finished product is provided, wherein the nylon elastic embossed belt pre-finished product is obtained by weaving fibers including spandex fibers and nylon fibers, wherein the spandex fibers are low-temperature settable spandex fibers, and the setting temperature of the spandex fibers is 130° C. to 175° C.;
[0006] Dyeing the nylon elastic embossed belt pre-finished product;
[0007] The nylon elastic embossed belt pre-finished product after the dyeing treatment is subjected to a color fixing treatment using a first color fixing agent and a second color fixing agent in sequence, wherein the first color fixing agent includes 1,6-hexanediamine, ammonium acetate and alkali solution, and the second color fixing agent includes N-(2-aminoethyl)-1,2-diethylamine, ammonium acetate and acid solution;
[0008] The nylon elastic embossed belt after the color fixing treatment is embossed at a temperature of 170°C to 190°C, for a time of 10s to 30s, and at a pressure of 2kg / cm 2 ~5kg / cm 2 .
[0009] In some embodiments, the dyed nylon elastic embossed belt pre-finished product is subjected to a color fixing treatment using a first color fixing agent and a second color fixing agent in sequence, comprising the following steps:
[0010] Placing the dyed nylon elastic embossed belt pre-finished product in a solution including the first color fixing agent, and heating the solution to 88° C. to 92° C.;
[0011] The nylon elastic embossed belt pre-finished product is then placed in a solution including the second color fixing agent and subjected to a color fixing treatment at 40° C. to 50° C.
[0012] In some embodiments, the nylon stretch embossed belt pre-finished product is dyed with a dye, and the dye includes at least one of ERIOFAST Yellow 3G, ERIOFAST Yellow R, ERIOFAST Orange 4R, ERIOFAST Br.Red 3G, ERIOFAST Red WF, ERIOFAST Blue 3R, ERIOFAST Blue 3G, ERIOFASTNavy M and ERIOFAST Black M.
[0013] In some embodiments, the temperature of the dyeing treatment is 98°C to 105°C.
[0014] In some embodiments, the holding time of the dyeing treatment is 30 min to 90 min.
[0015] In some embodiments, the embossing treatment is performed at a temperature of 170°C to 190°C.
[0016] In some embodiments, the embossing process lasts for 10s to 30s.
[0017] In some embodiments, the embossing pressure is 2 kg / cm 2 ~5kg / cm 2 .
[0018] In some embodiments, the method for preparing the nylon elastic embossed belt pre-finished product comprises the following steps:
[0019] The spandex fiber in the stretched state is spirally coated with nylon fiber to form elastic yarn;
[0020] The nylon elastic embossed belt pre-finished product is obtained by weaving the elastic yarn.
[0021] In some embodiments, the yarn count of the nylon fiber is 50D~150D.
[0022] In some embodiments, the twist of the stretch yarn is 500 to 700 twists.
[0023] In some embodiments, the stretch yarn has a draft ratio of 0.5 to 3 times.
[0024] In some embodiments, before embossing the nylon elastic embossed belt pre-finished product after the color fixing treatment, the following steps are also included:
[0025] The nylon elastic embossed belt pre-finished product after the color fixing treatment is subjected to ironing treatment.
[0026] In some embodiments, the temperature of the ironing treatment is 110°C to 140°C.
[0027] In some implementation modes, the ironing process lasts for 15 seconds to 30 seconds.
[0028] In some embodiments, the pressure of the ironing process is 0.5 kg / cm 2 ~1.5kg / cm 2 .
[0029] In a second aspect, the present application further provides a nylon elastic embossed belt, which is prepared by any of the above-mentioned methods for preparing the nylon elastic embossed belt.
[0030] In the preparation method of the above-mentioned nylon elastic embossed belt, the nylon elastic embossed belt pre-finished product after dyeing is subjected to color fixing treatment using the first color fixing agent and the second color fixing agent in sequence. Ordinary spandex is easy to form a stable shape at 190℃~230℃. At high temperatures of 190℃~230℃, nylon is easy to be melted, coked or crushed, and the color fastness is also deteriorated. Low-temperature fixable spandex with a setting temperature of 130℃~175℃ can be fixed into a stable shape at a lower temperature, and the concave embossing still maintains a clear embossing effect after washing at home. Among them, the first color fixing agent includes 1,6-hexanediamine, ammonium acetate and alkali solution. In an alkaline environment, 1,6-hexanediamine can react with amino groups in nylon fibers and groups in dyes that can form hydrogen bonds. At the same time, the molecular structure of 1,6-hexanediamine is similar to a linear type, and it is easier to form hydrogen bond reactions with nylon fibers and groups that can form hydrogen bonds in dyes, and the role of 1,6-hexanediamine is equivalent to extending and protruding the reactive groups in nylon fibers and dyes. The second color fixing agent includes N-(2-aminoethyl)-1,2-diethylamine, ammonium acetate and acid solution. When the second color fixing agent is used to treat the nylon elastic embossed belt pre-finished product, under acidic conditions, N-(2-aminoethyl)-1,2-diethylamine can form a network-like cross-linking structure between the nylon fiber and the dye after reacting with 1,6-hexanediamine, thereby enhancing the adhesion of the dye to the nylon elastic embossed belt pre-finished product, preventing the migration of the dye due to the expansion of the pores between the fibers when the nylon elastic embossed belt pre-finished product is hot-pressed at a high temperature, thereby enabling the nylon elastic embossed belt to have higher color fastness. DETAILED DESCRIPTION
[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0034] The present application provides a method for preparing a nylon elastic embossed tape, comprising the following steps:
[0035] Provide nylon elastic embossed belt pre-finished products, the nylon elastic embossed belt pre-finished products are woven from fibers including spandex fibers and nylon fibers, the spandex fibers are low-temperature settable spandex fibers, and the setting temperature of the spandex fibers is 130°C~175°C;
[0036] Dyeing of nylon elastic embossed tape pre-finished products;
[0037] The dyed nylon elastic embossed belt pre-finished product is subjected to a color fixing treatment using a first color fixing agent and a second color fixing agent in sequence, wherein the first color fixing agent includes 1,6-hexanediamine, ammonium acetate and alkali solution, and the second color fixing agent includes N-(2-aminoethyl)-1,2-diethylamine, ammonium acetate and acid solution;
[0038] The nylon elastic embossed tape after color fixation is embossed at a temperature of 170°C to 190°C, a time of 10s to 30s, and a pressure of 2kg / cm 2 ~5kg / cm 2 .
[0039] In the preparation method of the above-mentioned nylon elastic embossed belt, the nylon elastic embossed belt pre-finished product after dyeing is subjected to color fixing treatment using the first color fixing agent and the second color fixing agent in sequence. Ordinary spandex is easy to form a stable shape at 190℃~230℃. At high temperatures of 190℃~230℃, nylon is easy to be melted, coked or crushed, and the color fastness is also deteriorated. Low-temperature fixable spandex with a setting temperature of 130℃~175℃ can be fixed into a stable shape at an embossing temperature of 170℃~190℃, and the concave embossing still maintains a clear embossing effect after washing at home. Among them, the first color fixing agent includes 1,6-hexanediamine, ammonium acetate and alkali solution. In an alkaline environment, 1,6-hexanediamine can react with amino groups in nylon fibers and groups in dyes that can form hydrogen bonds. At the same time, the molecular structure of 1,6-hexanediamine is similar to a linear type, and it is easier to form hydrogen bond reactions with nylon fibers and groups that can form hydrogen bonds in dyes, and the role of 1,6-hexanediamine is equivalent to extending and protruding the reactive groups in nylon fibers and dyes. The second color fixing agent includes N-(2-aminoethyl)-1,2-diethylamine, ammonium acetate and acid solution. When the second color fixing agent is used to treat the nylon elastic embossed belt pre-finished product, under acidic conditions, N-(2-aminoethyl)-1,2-diethylamine can form a network-like cross-linking structure between the nylon fiber and the dye after reacting with 1,6-hexanediamine, thereby enhancing the adhesion of the dye to the nylon elastic embossed belt pre-finished product, preventing the migration of the dye due to the expansion of the pores between the fibers when the nylon elastic embossed belt pre-finished product is hot-pressed at a high temperature, thereby enabling the nylon elastic embossed belt to have higher color fastness.
[0040] The spandex fiber and nylon fiber with a setting temperature of 130°C to 175°C are used to prepare the elastic yarn. Within the process parameter range of the embossing treatment, a stable embossing setting can be formed, and the embossing effect can be kept stable after washing. Optionally, the setting temperature of the spandex fiber is 130°C, 135°C, 140°C, 145°C, 150°C, 155°C, 160°C, 165°C, 170°C or 175°C, or the setting temperature of the spandex fiber can also be within the range between any two of the above temperatures.
[0041] Optionally, the temperature of the embossing treatment is 170°C, 172°C, 174°C, 176°C, 178°C, 180°C, 182°C, 184°C, 186°C, 188°C or 190°C, or, the temperature of the embossing treatment may be within the range between any two of the above temperatures.
[0042] Optionally, the embossing treatment time is 10s, 12s, 14s, 16s, 18s, 20s, 22s, 24s, 26s, 28s or 30s, or, the embossing treatment time may also be within the range between any two of the above times.
[0043] Optionally, the embossing pressure is 2 kg / cm 2 , 2.5kg / cm 2 , 3kg / cm 2 、3.5kg / cm 2 , 4kg / cm 2 , 4.5kg / cm 2 or 5kg / cm 2 Alternatively, the pressure of the embossing treatment may also be within the range between any two of the above pressures.
[0044] Within the process parameter range of the above-mentioned embossing treatments, the nylon elastic embossed belt pre-finished product can have stable embossing and clear embossing effect. At the same time, the nylon elastic embossed belt pre-finished product after the above-mentioned color fixing treatment can withstand the embossing treatment at a higher temperature of 170℃~190℃ and the dye is not easy to migrate and fall off. After the embossing treatment at a higher temperature, the nylon elastic embossed belt can maintain good embossing clarity during the subsequent washing (usually 50℃ or below) and ironing (usually 80℃~100℃).
[0045] In some embodiments, the dyed nylon elastic embossed belt pre-finished product is subjected to a color fixing treatment using a first color fixing agent and a second color fixing agent in sequence, comprising the following steps:
[0046] The dyed nylon elastic embossed belt pre-finished product is placed in a solution including a first color fixing agent and heated to 88° C. to 92° C.;
[0047] The nylon elastic embossed belt pre-finished product is then placed in a solution including a second color fixing agent and subjected to a color fixing treatment at 40° C. to 50° C.
[0048] Optionally, the pre-finished nylon elastic embossed belt after dyeing is placed in a solution including a first color fixing agent and heated to 88°C, 89°C, 90°C, 91°C or 92°C, or the temperature of the pre-finished nylon elastic embossed belt after dyeing is placed in a solution including a first color fixing agent can also be within the range between any two of the above temperatures. Optionally, the temperature of the pre-finished nylon elastic embossed belt in a solution including a second color fixing agent for color fixing treatment is 40°C, 41°C, 42°C, 43°C, 44°C, 45°C, 46°C, 47°C, 48°C, 49°C or 50°C, or the temperature of the pre-finished nylon elastic embossed belt in a solution including a second color fixing agent for color fixing treatment can also be within the range between any two of the above temperatures.
[0049] In some embodiments, the alkaline solution includes a NaOH solution.
[0050] In some embodiments, the acid solution includes acetic acid solution.
[0051] In some embodiments, the nylon elastic embossed belt pre-finished product is placed in a solution including a second color fixing agent and subjected to a color fixing treatment at 40° C. to 50° C. for 30 min to 60 min.
[0052] Optionally, the nylon elastic embossed belt pre-finished product is placed in a solution including a second color fixing agent and subjected to a color fixing treatment at 40°C to 50°C for 30 min, 35 min, 40 min, 45 min, 50 min, 55 min or 60 min. Alternatively, the nylon elastic embossed belt pre-finished product is placed in a solution including a second color fixing agent and subjected to a color fixing treatment at 40°C to 50°C for a period of time within the range between any two of the above-mentioned times.
[0053] Within the range of the process parameters of the above-mentioned color fixing treatment, a better color fixing treatment effect can be achieved for the nylon elastic embossed belt pre-finished product.
[0054] In some embodiments, the nylon stretch embossed belt pre-finished product is dyed with a dye, and the dye includes at least one of ERIOFAST Yellow 3G, ERIOFAST Yellow R, ERIOFAST Orange 4R, ERIOFASTBr.Red 3G, ERIOFAST Red WF, ERIOFAST Blue 3R, ERIOFAST Blue 3G, ERIOFAST Navy M and ERIOFAST Black M.
[0055] The above dyes are all bright and fast dyes suitable for nylon dyeing, which can form covalent bonds with nylon fibers under the action of cross-linking agents and can dye nylon elastic embossed belt pre-finished products with higher color fastness.
[0056] In some embodiments, the temperature of the dyeing treatment is 98°C to 105°C.
[0057] Optionally, the temperature of the dyeing treatment is 98°C, 99°C, 100°C, 101°C, 102°C, 103°C, 104°C or 105°C, or, the temperature of the dyeing treatment may also be within the range between any two of the above temperatures.
[0058] In some embodiments, the holding time of the dyeing treatment is 30 min to 90 min.
[0059] Optionally, the holding time of the dyeing treatment is 30 min, 40 min, 50 min, 60 min, 70 min, 80 min or 90 min, or, the holding time of the dyeing treatment may also be within the range between any two of the above times.
[0060] Within the range of the above dyeing process parameters, a better dyeing effect can be achieved on the nylon elastic embossed belt pre-finished product.
[0061] In some embodiments, the method for preparing the nylon elastic embossed tape pre-finished product comprises the following steps:
[0062] The spandex fiber in the stretched state is spirally coated with nylon fiber to form elastic yarn;
[0063] The nylon elastic embossed belt pre-finished product is obtained by weaving the elastic yarn.
[0064] In some embodiments, the yarn count of the nylon fiber is 50D-150D.
[0065] Optionally, the yarn count of the nylon fiber is 50D, 60D, 70D, 80D, 90D, 100D, 110D, 120D, 130D, 140D or 150D, or, the yarn count of the nylon fiber may also be within the range between any two of the above yarn counts.
[0066] In some embodiments, the twist of the stretch yarn is 500 to 700 twists.
[0067] Optionally, the twist of the elastic yarn is 500 twists, 520 twists, 540 twists, 560 twists, 580 twists, 600 twists, 620 twists, 640 twists, 660 twists, 680 twists or 700 twists, or the twist of the elastic yarn can also be within the range between any two of the above twists.
[0068] In some embodiments, the stretch yarn has a draft ratio of 0.5 to 3 times.
[0069] Optionally, the drafting multiple of the elastic yarn is 0.5 times, 1 times, 1.5 times, 2 times, 2.5 times or 3 times, or, the drafting multiple of the elastic yarn may also be within the range between any two of the above drafting multiples.
[0070] In some embodiments, the following steps are further included before the embossing treatment is performed on the nylon elastic embossed belt pre-finished product after the color fixing treatment:
[0071] The nylon elastic embossed tape pre-finished product after color fixing treatment is ironed.
[0072] During the previous dyeing, dehydration and drying processes, the nylon elastic embossed belt pre-finished product may be bent or wrinkled. The ironing process can restore the nylon elastic embossed belt pre-finished product to be flat, which is beneficial for the subsequent embossing process.
[0073] In some embodiments, the temperature of the ironing process is 110°C to 140°C.
[0074] Optionally, the temperature of the ironing treatment is 110°C, 115°C, 120°C, 125°C, 130°C, 135°C or 140°C, or, the temperature of the ironing treatment may also be within the range between any two of the above temperatures.
[0075] In some implementation methods, the ironing process lasts for 15 seconds to 30 seconds.
[0076] Optionally, the time of the ironing treatment is 15s, 18s, 20s, 22s, 25s, 28s or 30s, or, the time of the ironing treatment may also be within the range between any two of the above times.
[0077] In some embodiments, the pressure of the ironing process is 0.5 kg / cm 2 ~1.5kg / cm 2 .
[0078] Optionally, the pressure of the ironing process is 0.5 kg / cm 2 , 0.7kg / cm 2 , 0.9kg / cm 2 , 1.1kg / cm 2 , 1.3kg / cm 2 or 1.5kg / cm 2 Alternatively, the pressure of the ironing treatment may be within the range between any two of the above pressures.
[0079] Within the range of the process parameters of the ironing treatment, the nylon elastic embossed belt pre-finished product can be restored to a better flat state.
[0080] In some embodiments, the following steps are further included before the ironing treatment is performed on the nylon elastic embossed belt pre-finished product after the color fixing treatment:
[0081] The nylon elastic embossed belt pre-finished product after color fixing treatment is cleaned.
[0082] In some embodiments, cleaning the nylon elastic embossed belt pre-finished product after the color fixing treatment includes the following steps:
[0083] The nylon elastic embossed belt pre-finished product after color fixation treatment was cleaned using Na2CO3 solution and acetic acid in turn.
[0084] Another embodiment of the present application provides a nylon elastic embossed belt, which is prepared by any of the above-mentioned methods for preparing the nylon elastic embossed belt.
[0085] The following are specific embodiments
[0086] Example 1
[0087] Preparation method of nylon elastic embossed tape:
[0088] (1) Using low-temperature settable spandex (from Lianyungang Du Zhong Xin Aoshen Spandex Co., Ltd.) with a setting temperature of 130°C to 175°C, 70D / 24F nylon-6 filaments were used to spirally wrap the stretched spandex filaments to form elastic yarns with a twist of 600D, an S twist direction, and a draft of 2.8 times. The elastic yarns were pulled into a webbing to obtain a nylon elastic embossed tape pre-finished product.
[0089] (2) Dyeing the nylon elastic embossed tape pre-finished product: add 100 L of water, 10 kg of nylon elastic embossed tape pre-finished product, 100 g to 150 g of degreasing agent Jinterge LCF-185 (from Fuying Technology Chemical Co., Ltd.), heat to 80 ° C to 90 ° C, keep warm for 25 min to 30 min, and drain. Add 95L~100L of water again, add 200g of sodium acetate (solid, from Fuying Technology Chemical Co., Ltd.) and 100g of 98% acetic acid (Fuying Technology Chemical Co., Ltd.), adjust the pH value between 5.0~5.5, operate at room temperature for 4min~5min, then add dyes ERIOFAST Yellow R 30g, ERIOFASTBr.Red 3G 40g, and ERIOFAST Navy M 250g (Huntsman Chemical Trading (Shanghai) Co., Ltd.), add them into the dyeing tank, operate at room temperature for 9min~10min, then heat up to 65℃~75℃ at a rate of 1.0℃ / min~2.0℃ / min and keep warm for 12min~15min, then heat up to 98℃~105℃ at a rate of 1.0℃ / min~2.0℃ / min and keep warm for 50min~60min, then cool to 85℃ and drain to complete the dyeing process.
[0090] (3) Fixing treatment of nylon elastic embossed tape pre-finished product: add 5g~10g of 50% mass concentration NaOH solution (from Fuying Technology Chemical Co., Ltd.), 300g~400g of 50% mass concentration 1,6-hexanediamine (from Foshan Gaoming Yihui Textile Technology Co., Ltd.), add 60g~100g of 50% concentration ammonium acetate (Foshan Gaoming Yihui Textile Technology Co., Ltd.), heat to 88℃~92℃, then cool to 75℃~80℃, drain. Add N-(2-aminoethyl)-1,2-diethylamine (mass concentration 25%~30%), add 60g~100g of 50% concentration ammonium acetate (Foshan Gaoming Yihui Textile Technology Co., Ltd.) and 150g~200g of ammonium acetate solution (mass concentration 3%~12%), run at 40℃~50℃ for 30min, drain, and complete the fixing treatment.
[0091] (4) Clean the pre-finished nylon elastic embossed belt: add 100g~120g of industrial grade sodium carbonate (Na2CO3), run at 60℃ for 30min, drain, add 100L of water, add 120g~150g of 98% mass concentration acetic acid, run for 30min, drain and take out the pre-finished nylon elastic embossed belt. Dehydrate the pre-finished nylon elastic embossed belt and dry it at 60℃~80℃.
[0092] (5) Ironing the pre-finished nylon elastic embossed tape: the ironing temperature is 110℃~140℃ and the pressure is 0.5kg / cm 2 ~1.5kg / cm 2 , time is 15s~30s, the hot pressing machine equipment is from Hashima HASHIMA, model: HP-450M.
[0093] (6) Emboss the pre-finished nylon elastic embossed belt: the embossing temperature is 170℃~190℃, the time is 10s~30s, and the pressure is 2.0kg / cm 2 ~5.0kg / cm 2 .
[0094] The nylon elastic embossed tape prepared in Example 1 was tested, and the test items and test results are shown in the following table:
[0095]
[0096] Among them, the color fastness to washing is tested according to the method specified in AATCC 61-2A:2013;
[0097] Water stain color fastness The water stain color fastness is tested according to the method specified in AATCC107:2019;
[0098] Wet pressing color fastness is tested according to the method specified in AATCC133:2020 at 150°C for 30 seconds for wet pressing and at 180°C for 30 seconds for dry pressing. Then the staining is evaluated according to the AATCC color chart.
[0099] According to ISO 6330:2012, the webbing is tested to evaluate the home wash appearance;
[0100] Evaluation of webbing appearance: Lay the sample flat on a smooth table without any tension, draw the mark of the warp yarn or webbing warp column on the sample, draw a straight line parallel to the webbing edge from the intersection with one side of the webbing end, measure the maximum vertical distance between the straight line and the marked warp yarn or webbing warp column, and express the warp slope as the percentage of the ratio of the vertical distance to the webbing length;
[0101] Ribbon bow: According to the marks of warp yarns and ribbon warp columns, place a ruler parallel to the edge of the ribbon across the ribbon at the point where it intersects with the end edge of the ribbon, and measure the maximum vertical distance (cm) between the ruler and the marked warp yarns or ribbon warp columns. The ratio of this vertical distance to the ribbon length (100cm) is used to express the warp bow of the ribbon;
[0102] The flatness of the webbing is tested and evaluated according to the test method of GB / T 13769-2009.
[0103] Example 2
[0104] Preparation method of nylon elastic embossed tape: The preparation method of the nylon elastic embossed tape in Example 2 is basically the same as that in Example 1, with the only difference being that the dyes used in Example 2 are ERIOFAST Yellow R 50g, ERIOFASTBr.Red 3G 50g, and ERIOFAST Navy M 350g.
[0105] The nylon elastic embossed tape prepared in Example 2 was tested, and the test items and test results are shown in the following table:
[0106]
[0107] Example 3
[0108] Preparation method of nylon elastic embossed belt: The preparation method of nylon elastic embossed belt in Example 3 is basically the same as that in Example 1, with the only difference being that no ironing treatment is performed in Example 3.
[0109] The nylon elastic embossed tape prepared in Example 3 was tested, and the test items and test results are shown in the following table:
[0110]
[0111] Comparative Example 1
[0112] Preparation method of nylon elastic embossed tape: The preparation method of the nylon elastic embossed tape in Comparative Example 1 is basically the same as that in Example 1, the only difference is that in Comparative Example 1, 1,6-hexanediamine is not used, and only N-(2-aminoethyl)-1,2-diethylamine, ammonium acetate and acetic acid are used for color fixing treatment.
[0113] The nylon elastic embossed tape prepared in Comparative Example 1 was tested, and the test items and test results are shown in the following table:
[0114]
[0115] Comparative Example 2
[0116] Preparation method of nylon elastic embossed belt: The preparation method of the nylon elastic embossed belt in Comparative Example 2 is basically the same as that in Example 1, the only difference is that in Comparative Example 2, N-(2-aminoethyl)-1,2-diethylamine, ammonium acetate, and acetic acid are not used for color fixation, and only 1,6-hexanediamine is used for color fixation treatment.
[0117] The nylon elastic embossed tape prepared in Comparative Example 2 was tested, and the test items and test results are shown in the following table:
[0118]
[0119] Comparative Example 3
[0120] Preparation method of nylon elastic embossed tape: The preparation method of the nylon elastic embossed tape in Comparative Example 3 is basically the same as that in Example 1, the only difference is that ordinary spandex is used in Comparative Example 3, and its setting temperature is 190°C-220°C.
[0121] The nylon elastic embossed tape prepared in Comparative Example 3 was tested, and the test items and test results are shown in the following table:
[0122]
[0123] Comparative Example 4
[0124] Preparation method of nylon elastic embossed tape: The preparation method of the nylon elastic embossed tape in Comparative Example 4 is basically the same as that in Example 1, the only difference is that in Comparative Example 4, low-temperature settable spandex with a setting temperature of 110°C to 125°C is used.
[0125] The nylon elastic embossed tape prepared in Comparative Example 4 was tested, and the test items and test results are shown in the following table:
[0126]
[0127] Comparative Example 5
[0128] Preparation method of nylon elastic embossed belt: The preparation method of the nylon elastic embossed belt in Comparative Example 5 is basically the same as that in Example 1, the only difference is that the temperature of the embossing treatment in Comparative Example 5 is 150°C~165°C.
[0129] The nylon elastic embossed tape prepared in Comparative Example 5 was tested, and the test items and test results are shown in the following table:
[0130]
[0131] Comparative Example 6
[0132] Preparation method of nylon elastic embossed belt: The preparation method of the nylon elastic embossed belt in Comparative Example 6 is basically the same as that in Example 1, the only difference is that the embossing treatment temperature in Comparative Example 6 is 190°C~205°C.
[0133] The nylon elastic embossed tape prepared in Comparative Example 6 was tested, and the test items and test results are shown in the following table:
[0134]
[0135] Comparative Example 7
[0136] Preparation method of nylon elastic embossed belt: The preparation method of the nylon elastic embossed belt in Comparative Example 7 is basically the same as that in Example 1, the only difference is that the embossing treatment time in Comparative Example 7 is 3s~5s.
[0137] The nylon elastic embossed tape prepared in Comparative Example 7 was tested, and the test items and test results are shown in the following table:
[0138]
[0139] Comparative Example 8
[0140] Preparation method of nylon elastic embossed belt: The preparation method of nylon elastic embossed belt in comparative example 8 is basically the same as that in embodiment 1, except that the pressure of embossing treatment in comparative example 8 is 5.5 kg / cm 2 ~6.5kg / cm 2 .
[0141] The nylon elastic embossed tape prepared in Comparative Example 8 was tested, and the test items and test results are shown in the following table:
[0142]
[0143] By comparing the test data of Examples 1 to 3 with the test data of Comparative Examples 1 and 2, it can be seen that two-step color fixation treatment was performed in each of the Examples, while only one-step color fixation treatment was performed in Comparative Examples 1 and 2, respectively, and the nylon elastic embossed belts in each of the Examples have the same color fastness as the nylon elastic embossed belts in the Comparative Examples. That is, the preparation method of the nylon elastic embossed belt of the present application can make the nylon elastic embossed belt have higher color fastness.
[0144] By comparing the test data of Example 1 with Comparative Examples 3 and 4, it can be seen that by using low-temperature settable spandex with a setting temperature of 130°C to 175°C as a raw material to prepare a nylon elastic embossed belt pre-finished product, a nylon elastic embossed belt with better embossing clarity retention performance can be obtained.
[0145] Comparing the test data of Example 1 and Example 3, it can be seen that not performing ironing treatment on the nylon elastic embossed belt pre-finished product or the ironing temperature is too low will lead to poor appearance and flatness of the nylon elastic embossed belt.
[0146] From the test data of Example 1 and Comparative Examples 5 to 8, it can be seen that when the temperature of the embossing treatment is too low, the embossing of the nylon elastic embossed belt will become shallower; when the temperature of the embossing treatment is too high, it will cause the embossing to break and reduce the color fastness of the nylon elastic embossed belt; when the embossing treatment time is too short, the embossing effect will be unclear; when the pressure of the embossing treatment is too high, it will cause the embossing to break.
[0147] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0148] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims, and the description may be used to interpret the content of the claims.
Claims
1. A method for preparing a nylon elastic embossed tape, characterized in that: The steps include: A nylon elastic embossed belt pre-finished product is provided, wherein the nylon elastic embossed belt pre-finished product is obtained by weaving fibers including spandex fibers and nylon fibers, wherein the spandex fibers are low-temperature settable spandex fibers, and the setting temperature of the spandex fibers is 130° C. to 175° C.; Dyeing the nylon elastic embossed belt pre-finished product; The nylon elastic embossed belt pre-finished product after the dyeing treatment is subjected to a color fixing treatment using a first color fixing agent and a second color fixing agent in sequence, wherein the first color fixing agent includes 1,6-hexanediamine, ammonium acetate and alkali solution, and the second color fixing agent includes N-(2-aminoethyl)-1,2-diethylamine, ammonium acetate and acid solution; The nylon elastic embossed belt pre-finished product after the color fixing treatment is embossed, the embossing temperature is 170°C to 190°C, the embossing time is 10s to 30s, and the embossing pressure is 2kg / cm 2 ~5kg / cm 2 .
2. The method for preparing the nylon elastic embossed tape according to claim 1, characterized in that: The dyed nylon elastic embossed belt pre-finished product is subjected to a color fixing treatment using a first color fixing agent and a second color fixing agent in sequence, comprising the following steps: Placing the dyed nylon elastic embossed belt pre-finished product in a solution including the first color fixing agent, and heating the solution to 88° C. to 92° C.; The nylon elastic embossed belt pre-finished product is then placed in a solution including the second color fixing agent and subjected to a color fixing treatment at 40° C. to 50° C.
3. The method for preparing the nylon elastic embossed tape according to claim 1, characterized in that: The nylon elastic embossed belt pre-finished product is dyed with a dye, wherein the dye comprises at least one of ERIOFAST Yellow 3G, ERIOFAST Yellow R, ERIOFAST Orange 4R, ERIOFAST Br. Red 3G, ERIOFAST Red WF, ERIOFAST Blue 3R, ERIOFAST Blue 3G, ERIOFAST Navy M and ERIOFAST Black M.
4. The method for preparing the nylon elastic embossed tape according to claim 1, characterized in that: The temperature of the dyeing treatment is 98°C to 105°C; and / or, The heat preservation time of the dyeing treatment is 30min to 90min.
5. The method for preparing the nylon elastic embossed tape according to claim 1, characterized in that: The method for preparing the nylon elastic embossed belt pre-finished product comprises the following steps: The spandex fiber in the stretched state is spirally coated with nylon fiber to form elastic yarn; The nylon elastic embossed belt pre-finished product is obtained by weaving the elastic yarn.
6. The method for preparing the nylon elastic embossed tape according to claim 5, characterized in that: The yarn count of the nylon fiber is 50D-150D.
7. The method for preparing the nylon elastic embossed tape according to claim 5, characterized in that: The twist of the elastic yarn is 500 to 700 twists; and / or, The stretching multiple of the elastic yarn is 0.5 to 3 times.
8. The method for preparing the nylon elastic embossed tape according to any one of claims 1 to 7, characterized in that: Before embossing the nylon elastic embossed belt pre-finished product after the color fixing treatment, the following steps are also included: The nylon elastic embossed belt pre-finished product after the color fixing treatment is subjected to ironing treatment.
9. The method for preparing the nylon elastic embossed tape according to claim 8, characterized in that: The temperature of the ironing treatment is 110°C to 140°C; and / or, The ironing treatment time is 15s to 30s; and / or, The pressure of the ironing process is 0.5 kg / cm 2 ~1.5kg / cm 2 .
10. A nylon elastic embossed belt, characterized in that: The nylon elastic embossed tape is prepared by the preparation method of any one of claims 1 to 9.