Washing-free multi-layer gauze towel with wrinkles and preparation method of washing-free multi-layer gauze towel

Abstract

The invention relates to the technical field of textile, in particular to a washing-free multi-layer gauze towel with wrinkles and a weaving method of the washing-free multi-layer gauze towel with the wrinkles, and the target multi-layer gauze towel is successfully obtained by adopting a specific ground warp, wool warp and weft material combination, the weaving method and the post-processing technology. According to the method, the towel with the wrinkles can be prepared without water washing, so that the towel keeps good water absorption, meanwhile, lasting and stable wrinkles are formed, the cost of a weaving process is reduced, and production is improved.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to a water-free, self-pleated, multi-layer gauze towel and a preparation method thereof. Background Art

[0002] In modern society, with the development of economy and the improvement of living standards, consumers have higher and higher requirements for the quality of daily necessities. As an indispensable item in daily life, the market demand for towels is becoming increasingly diversified and personalized. Traditional towel products usually adopt a single-sided or double-sided terry structure. Although this structure has good water absorption performance, it is insufficient in durability and aesthetics. Due to the loose interweaving points between the wool warp yarn and the base fabric, and the small twist of the wool warp yarn, traditional towels are prone to hair pulling and hairiness during use, affecting the user experience and product life.

[0003] Homogeneous competition among towel products in the market is becoming increasingly fierce, and consumers have higher expectations for the aesthetics, functionality and applicability of towels. Although the towel industry has made improvements in patterns, color matching, and raising methods, these improvements are no longer able to meet the ever-increasing needs of customers in the current market environment. Products on the market usually require post-washing treatment to form a wrinkle effect. This process involves washing, ironing or other chemical treatments of the fabric during the production process to form shrinkage differences between fibers, thereby producing wrinkles. Traditional methods consume a lot of water resources and energy, and involve complex production processes, including washing, dehydration, drying and other steps, which not only increases production costs, but also imposes a certain burden on the environment; in addition, the wrinkles formed by traditional washing often weaken after several washes, because the normal washing process gradually eliminates the shrinkage stress between fibers, causing the wrinkles to become less obvious.

[0004] The water-free towel product with built-in pleated patterns and tissues can not only provide a better user experience and a fluffy feel, but also has better water absorption than other multi-layer towels on the market. In addition, since this product is water-free, compared with traditional pleated products, it can save a lot of water resources and energy, reduce production costs, and the pleated effect is long-lasting and stable. Summary of the invention

[0005] In order to solve the problems in the prior art that towels need to be washed to form a wrinkled effect, have high production costs and low efficiency, have poor durability and are unstable during use, the present invention provides a water-free, self-pleated multi-layer gauze towel, and a weaving method for the water-free, self-pleated multi-layer gauze towel. The towel is woven from multiple layers of gauze, which is different from terry towels woven using traditional techniques and therefore will not draw hair.

[0006] The present invention successfully obtains a water-free, self-wrinkled multi-layer gauze towel by adopting a specific combination of ground warp, wool warp and weft yarn materials, a weaving method and a post-processing technology. Through the weaving method of the present invention, a self-wrinkled towel can be prepared without washing, so that the towel maintains good water absorption while forming long-lasting and stable wrinkles, thereby reducing the cost of the weaving process and improving the efficiency.

[0007] The towel is composed of four layers of gauze, wherein the upper and lower surface layers are pure cotton yarns, and the middle two layers are sorona / cotton blended fiber yarns. This structural design allows the towel to naturally form wrinkles during post-processing due to the difference in shrinkage rates of the inner and outer yarn layers.

[0008] The washable, self-pleated multi-layer gauze towel provided by the present invention is woven from ground warp, wool warp and weft yarns, and comprises an upper and lower surface layer and an inner layer, wherein the upper and lower surface layers are pure cotton yarns interwoven with ground warp and weft yarns, and the inner layer is sorona / cotton blended fiber yarns interwoven with wool warp and weft yarns.

[0009] Among them, the combination of ground warp and weft yarn is the key technical feature. The ground warp and weft yarns of the upper and lower surface layers are made of pure cotton yarn with high linear density to ensure the durability and water absorption of the towel surface; the inner layer is made of sorona / cotton blended fiber yarn with shrinkage characteristics. This material can shrink in the post-processing stage to form a natural pleat effect. The preparation method of pure cotton yarn adopts conventional spinning process, and the inventor will not elaborate on it.

[0010] The preparation method of the sorona / cotton blended fiber yarn comprises the following specific steps:

[0011] (1) Preparation of sorona fiber pre-drawing: sorona fiber and cotton fiber are mixed by a plucking machine at a ratio of 50 wt% of sorona fiber to total fiber, and then the sorona fiber / cotton fiber pre-drawing is obtained by cleaning, thinning, and pre-drawing.

[0012] During the cotton cleaning process, pay attention to fiber damage, reduce the speed of the cotton cleaning beater and the combing needle beater, increase the distance between the beater and the cotton feeding roller, the roll quantity should be larger to prevent holes, and the roll length should be shorter.

[0013] Carding is a difficult point in sorona fiber blending. The process must be carefully adjusted, otherwise the fiber will be severely damaged, the cotton web will be broken, the transfer will be difficult, and the net will fall. Therefore, the quantity should be heavy, the tension should be low, the speed of the doffer and the cylinder should be reduced, and a cotton support board should be added.

[0014] There are fewer difficulties in drawing production, but attention should be paid to maintaining a low speed and designing the gauge with pure cotton to prevent the blended sorona fiber from being broken.

[0015] (2) Preparation of sorona / cotton blended fiber yarn: The sorona fiber / cotton fiber pre-drawing obtained in step (1) is drawn through a drawing frame, and then sequentially through a roving frame, a spinning frame and an automatic doffing machine to obtain a sorona / cotton blended fiber yarn;

[0016] Wherein, the drawing is 2-5 passes, preferably 3 passes; in step (2), the twist coefficient processed by the roving frame is 270-380, and the spinning count processed by the roving frame is 10s-40s.

[0017] To ensure weaving efficiency, the sorona / cotton blended fiber yarn in step (2) is subjected to a plying process with a twist of 26 twists.

[0018] Roving is one of the more difficult processes to produce, mainly because sorona fibers repel each other with the same charge, resulting in a very small cohesion between the fibers. This feature makes it difficult to produce qualified yarns in this process and the subsequent processes if spinning is done with traditional chemical fiber varieties. Therefore, the following measures should be taken to increase the fiber cohesion: the roving has a larger sliver weight, the roving twist coefficient is 275, and the roving weight is larger.

[0019] The spinning process adopts the process principle of "large gauge, high twist coefficient, low speed, and small tension". At the same time, the temperature and humidity are strictly controlled, temperature: 25℃, relative humidity: 65%.

[0020] The sorona / cotton blended fiber yarn finally obtained has a sorona fiber ratio of 50wt% and a cotton fiber ratio of 50wt%, and the ratio of the two is 1:1 to ensure that the shrinkage rate of the inner layer and the outer layer fibers is different and the pleating effect is better.

[0021] Furthermore, the linear density of the ground warp yarn is twice that of the wool warp yarn, which helps to form a more obvious wrinkle effect; the two inner layers of wool warp are relatively sparse and have a smaller warp density of 12-14 strands / cm to ensure the basic structural stability and durability of the towel; the warp density of the surface ground warp is 24-28 strands / cm, which makes the ground warp layer tighter and helps to form uniform wrinkles during post-processing.

[0022] Preferably, the inner layer is two layers of gauze, and the two inner layers of gauze are both made of sorona / cotton blended fiber yarn with shrinkage properties. Such a structural design ensures that during the post-processing process, the shrinkage effects of the inner layer and the surface layer can work synergistically, thereby forming a uniform and natural wrinkle effect on the entire towel.

[0023] Preferably, horizontal pattern intervals are made on the upper and lower surface layers to make the upper and lower surface layers staggered to avoid the formation of small fiber clusters in the inner layer after hair loss, thereby ensuring the appearance and quality of the product after subsequent daily washing. This can reduce the accumulation of hair during washing, especially at the four corners of the product; if no intervals are made, more hair balls are likely to be generated. The design of horizontal pattern intervals is not only beautiful, but also can improve the service life of the towel and user experience.

[0024] The present invention also provides a method for preparing the water-free self-wrinkled multi-layer gauze towel, comprising the steps of yarn, warping, weaving, scouring, bleaching, dyeing and softening, dehydration, drying, cutting, sewing, and finished product, wherein the weaving method comprises the following steps:

[0025] (1) Dividing the ground warps and the hair warps into two groups, including two layers of ground warps in the surface layer area and two layers of hair warps in the inner layer area, wherein the hair warps and the ground warps are arranged in a cyclic order of hair 1 ground 1 ground 1;

[0026] (2) Divide the weft yarn into two layers of surface weft yarn and two layers of inner weft yarn;

[0027] (3) fully lifting the wool warp, interweaving the fully ground warp with the weft yarn to form a lower layer of gauze; fully dropping the wool warp, fully lifting the ground warp, interweaving the fully lifted ground warp with the weft yarn to form an upper layer of gauze, and then circulate in sequence, interweaving with the surface weft yarn and the bottom weft yarn to form an upper layer of gauze and a lower layer of gauze respectively;

[0028] At the same time, the corresponding surface ground warp is fully raised or fully dropped, and the inner wool warp is interwoven with the weft yarn to form the upper gauze and the lower gauze of the inner layer, which can ensure the structural stability of the towel and the formation of the pleat effect.

[0029] Preferably, the drying process adopts SJ320 airflow softening dryer, which can ensure that the product remains fluffy and soft during the drying process, while avoiding the problem of fabric structure damage or loss of wrinkle effect that may be caused by traditional drying methods. Through this special drying technology, the comfort and visual effect of the towel are further improved, so that the product can maintain fluffy and soft while improving the shrinkage rate and feather shedding rate in the warp and weft directions.

[0030] The towels woven by the above process use shrinkable sorona / cotton blended fiber yarn for the inner layer, which feels similar to cotton fabric and absorbs water very quickly, comparable to cotton fabric; the shrinkage characteristics of this fiber are used to shrink the inner layer of the gauze, while the outer layer does not shrink. After post-processing, due to the difference in shrinkage between the outer layer and the inner layer, a natural pleated effect is formed.

[0031] The non-washable, self-wrinkled, multi-layer gauze towel is prepared by the weaving method described in the present invention, and the following technical effects are achieved:

[0032] (1) The towel of the present invention adopts a specific combination of ground warp, wool warp and weft yarns and a weaving method, and uses a sorona / cotton blended fiber yarn with high shrinkage characteristics in the inner layer of the towel, and pure cotton yarn in the upper and lower surface layers. In the post-processing stage, due to the inherent difference in the shrinkage rate of the two materials, a long-lasting pleated effect is naturally formed without the need for additional washing treatment.

[0033] (2) Pleated products on the market usually require special washing treatments for towels, such as using special detergents or washing techniques to promote the shrinkage and relaxation of towel fibers to form a pleated effect. This process involves washing, ironing or other chemical treatments of the fabric during the production process to create shrinkage differences between fibers, thereby producing wrinkles. This method consumes a lot of water resources and energy, and involves a complex production process, including washing, dehydration, drying and other steps, which not only increases production costs, but also imposes a certain burden on the environment; in addition, the wrinkles formed by traditional washing often weaken after several washes, because the normal washing process will gradually eliminate the shrinkage stress between fibers, causing the wrinkles to become less obvious;

[0034] The weaving process of the towel described in the present invention does not require the step of washing and wrinkling, which significantly reduces the production cost and production time of the weaving process, improves production efficiency, and reduces the impact on the environment.

[0035] (3) The weaving method of the present invention is used to obtain a towel with self-wrinkled wrinkles. Due to the different wrinkling principles, the wrinkled effect achieved by the difference in fiber shrinkage is more durable and stable in daily use and washing. Most of the wrinkled products on the market are obtained through post-processing. After being washed many times, the wrinkled effect of such ordinary wrinkled products becomes less and less obvious.

[0036] In summary, the water-free, self-pleated, multi-layer gauze towel of the present invention provides a more environmentally friendly, economical and long-lasting solution, which can meet the market demand for high-quality towel products. It not only improves the appearance and functionality of the product, but also optimizes the production process, making it more competitive in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a real picture of the water-free, self-wrinkled, multi-layer gauze towel of the present invention;

[0038] Figure 2 It is the organization diagram of the machine during weaving of the present invention;

[0039] Figure 3 Schematic diagram of the traditional washing process and the self-wrinkled towel prepared by this method before washing.

[0040] The left side shows the wrinkled towel prepared by the present application, and the right side shows the wrinkled towel prepared by the traditional washing process;

[0041] Figure 4 This is a schematic diagram of the traditional washing process and the self-wrinkled towel prepared by this method after five washings.

[0042] The left side is a wrinkled towel prepared by the present application, and the right side is a wrinkled towel prepared by a traditional washing process. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0044] Example 1 A method for preparing sorona / cotton blended fiber yarn, the specific steps are as follows:

[0045] (1) Preparation of sorona fiber pre-drawing: sorona fiber and cotton fiber are mixed by a plucking machine at a ratio of 50 wt% of sorona fiber to total fiber, and then the sorona fiber / cotton fiber pre-drawing is obtained by cleaning, thinning, and pre-drawing.

[0046] Pay attention to fiber damage in cotton cleaning. Reduce the speed of cotton cleaning beaters and combing needle beaters, increase the distance between beaters and feeding rollers, the roll quantity should be larger to prevent holes, and the roll length should be shorter. Since it is relatively fluffy, coarse yarn of the same type should be added to prevent sticking. The main process parameters and quality control requirements of the cotton cleaning process are finally determined in Table 1.

[0047] Table 1 Main process parameters and quality control requirements of cotton cleaning process

[0048]

[0049] Carding is a difficult point in sorona fiber blending. The process must be adjusted carefully, otherwise the fiber will be severely damaged, the cotton net will be broken, the transfer will be difficult, and the net will fall. Therefore, the quantity should be heavy, the tension should be low, the speed of the doffer and the cylinder should be reduced, and a cotton support plate should be added; the production difficulty of drawing is relatively small, but it is important to insist on low speed and the gauge should be designed with pure cotton to prevent the blended sorona fiber from being broken. The main process parameters and quality control requirements of the corresponding carding process are shown in Table 2.

[0050] Table 2 Main process parameters and quality control requirements of carding process

[0051] project Process parameters <![CDATA[Spindle speed / r.min -1 > 780 <![CDATA[Cylinder speed / r.min -1 > 320 <![CDATA[Doffer speed / r.min -1 > 21 Licker-in roller to cylinder gauge / mm 0.18 Cylinder to cover plate distance / mm 0.25,0.23,0.20,0.20,0.25 <![CDATA[Rotary cover plate speed / mm.(min) -1 > 90.5 <![CDATA[Dry quantitative / g.(5m) -1 > 20.5 Coefficient of variation of sliver weight / % ≤2.5 Coefficient of variation of raw strips / % ≤3.6 <![CDATA[Raw sliver web neps / grain.g -1 。]]> ≤1

[0052] (2) Preparation of sorona / cotton blended fiber yarn: The sorona fiber / cotton fiber pre-drawn obtained in step (1) is drawn through a drawing frame, and then sequentially processed through a roving frame, a spinning frame and an automatic doffing machine to obtain a sorona / cotton blended fiber yarn; wherein the drawing is 2-5 passes, preferably 3 passes in this embodiment; the twist coefficient processed by the roving frame is 270-380, and the spinning count processed by the spinning frame is 10s-40s. The main process parameters and quality control requirements of the drawing process are shown in Table 3.

[0053] Table 3 Main process parameters and quality control requirements of drawing process

[0054]

[0055] Roving is one of the more difficult processes to produce, mainly because sorona fibers repel each other with the same charge, which makes the cohesion between fibers very small. If this feature is spun according to traditional chemical fiber varieties, it is difficult to produce qualified yarn in this process and the subsequent processes. Therefore, the following measures should be taken to increase the fiber cohesion. The roving is too large in terms of the sliver quantity, the roving twist coefficient is 275, and the roving quantity is too large. The main process parameters and quality control requirements of the roving process are finally determined in Table 4.

[0056] Table 4 Main process parameters and quality control requirements of roving process

[0057] project Process parameters Total drafting times / times 10.46 Back zone drafting multiple / times 1.25 Roller distance / mm 10×26×32 <![CDATA[Dry quantitative / g.(10m) -1 > 3.5 <![CDATA[Spindle speed / r.(min) -1 > 800 Roving twist factor 275 Coefficient of variation of strip length / % ≤3.8 Coefficient of variation of roving weight / % ≤1.0

[0058] The spinning process adopts the process principle of "large gauge, high twist coefficient, low speed, and low tension". At the same time, the temperature and humidity are strictly controlled, temperature: 25°C, relative humidity: 65%. In order to ensure weaving efficiency, the sorona / cotton blended fiber yarn in step (2) is plied and the plied twist is 26 twists.

[0059] The sorona / cotton blended fiber yarn has a sorona fiber ratio of 50 wt % to ensure that the shrinkage of the inner layer and the outer layer fibers is different and the pleating effect is better.

[0060] In this embodiment, the material configuration of the woven water-free, self-pleated multi-layer gauze towel is as follows: the upper and lower surface layers of the towel are pure cotton gauze, and the two middle inner layers are sorona / cotton blended fiber yarns; the surface gauze is interwoven with high-density pure cotton warp and weft yarns, ensuring the durability and good water absorption of the towel surface; the inner gauze is blended with 50wt% sorona fiber and 50wt% cotton fiber. This blended yarn has good shrinkage characteristics and is the key to forming natural wrinkles.

[0061] Example 2 Preparation of a washable, wrinkled multi-layer gauze towel

[0062] The preparation method of a water-free, self-wrinkled multi-layer gauze towel includes the steps of yarn, warping, weaving, boiling and bleaching, dyeing and softening, dehydration, drying, cutting, sewing, and finished product. In the weaving process, the ground warp is divided into two areas for weaving, and the upper and lower layers of pure cotton gauze and the middle two layers of sorona / cotton blended fiber gauze are woven respectively; the upper and lower layers of ground warp and weft are all made of pure cotton yarn, which are interwoven and connected together through a specific pattern organization to form a complete multi-layer structure; the specific steps are as follows:

[0063] (1) Dividing the ground warps and the hair warps into two groups, including two layers of ground warps in the surface layer area and two layers of hair warps in the inner layer area, wherein the hair warps and the ground warps are arranged in a cyclic order of hair 1 ground 1 ground 1;

[0064] (2) Divide the weft yarn into two layers of surface weft yarn and two layers of inner weft yarn;

[0065] (3) fully lifting the wool warp, interweaving the fully ground warp with the weft yarn to form a lower layer of gauze; fully dropping the wool warp, fully lifting the ground warp, interweaving the fully lifted ground warp with the weft yarn to form an upper layer of gauze, and then circulate in sequence, interweaving with the surface weft yarn and the bottom weft yarn to form an upper layer of gauze and a lower layer of gauze respectively;

[0066] At the same time, the corresponding surface ground warp is fully raised or fully dropped, and the inner wool warp is interwoven with the weft yarn to form the upper gauze of the inner layer and the lower gauze of the inner layer.

[0067] The horizontal pattern interval connects the upper and lower base fabrics through the rise and fall conversion of the warp yarns, which is different from simply replacing the warp with a joint warp, ensuring the overall strength and beauty of the towel.

[0068] The special pattern structure design also helps to reduce the generation and aggregation of hairiness during washing and avoid the formation of hair balls in the product interlayer.

[0069] The organization design of towel weaving is based on Figure 2 For example, the method of threading the wool warp and ground warp is 3 threads per reed tooth (1 wool and 2 ground), and the threading is repeated in sequence;

[0070] Ground warp: 12s (12s: 100% cotton);

[0071] Wool warp: 24s / 2 weak twist (50wt% sorona fiber + 50wt% cotton fiber), twist single yarn 66 twist, ply 24 twist;

[0072] Weft yarn: 12s (12s: 100% cotton) + 24s / 2 (50wt% sorona 50wt% cotton);

[0073] Weight:500GSM.

[0074] As mentioned above, the specific process flow of the preparation method is yarn - warping - weaving - overflow machine scouring (dehairing) - dyeing and softening - dehydration - new type oscillation dryer drying - cutting - sewing - finished product.

[0075] The new type of oscillating dryer used is the SJ320 airflow softening dryer with an operating temperature of 140°C and a drying speed of 20m / min. It is used to dry the towels. This drying method can ensure that the product remains fluffy and soft during the drying process. The fiber compaction phenomenon of the treated fabric disappears, and the softness and bulkiness are significantly improved. At the same time, it avoids the problem of fabric structure damage or loss of wrinkle effect that may be caused by traditional drying methods.

[0076] Except for weaving and drying, the other processes in the above process are existing processes, and the process described in CN102277675A can be used, or the following process can be used:

[0077] The selection and configuration of the loom are as follows:

[0078] The G6300 multi-arm terry rapier loom is selected. This loom is suitable for weaving terry with complex structures and can meet the requirements of fine weaving process. The torsion value of the wool warp tension torsion bar is set to 15 degrees, and the torsion value of the ground warp tension torsion bar is 95 degrees. This configuration is conducive to maintaining the stability of the yarn and reducing the warp and weft breaks during the weaving process. The machine speed is controlled at 400 rpm, which can ensure both weaving efficiency and weaving quality.

[0079] The weaving parameters are adjusted as follows:

[0080] In order to maintain the soft and fluffy feel of the product, the weft density of the product is appropriately adjusted to affect the tightness and comfort of the towel; the warp density adopts 52# steel reed, which is a reed number commonly used for weaving towels; the weft density is set to 297pcs / dm. This density setting is based on the results of many experiments, which can ensure the feel and naturalness while providing sufficient firmness and water absorbency.

[0081] The woven towel products need to go through the L-shaped overflow machine bleaching, dyeing, softening and other processes. These steps are aimed at removing impurities that may be generated in the weaving process and improving the color and softness of the towels. The towels are dried in a new type of oscillating dryer. This equipment can better maintain the fluffiness and softness of multi-layer pleated towels while improving drying efficiency. Subsequently, the towels enter the finishing and sewing process, where they are cut and sewn according to the established size (30*54 inches) and shape to ensure that the product has a neat appearance and consistent size.

[0082] Except for the above-mentioned drying process which uses specific equipment and technology, the other processes all adopt the conventional processes and conditions for producing towels, which will not be described in detail here. Figure 1 shown.

[0083] Through the above weaving and post-processing process, the wash-free natural wrinkled multi-layer gauze towel produced in this embodiment has reached excellent standards in feel, appearance and performance. The product has a unique style, stable performance after washing, excellent physical indicators, and meets the market demand for high-quality towels.

[0084] The wrinkled products on the market usually require special washing treatment of the towels. Including the use of special detergents or washing techniques to promote the shrinkage and relaxation of towel fibers, thereby forming a wrinkled effect. This process involves washing, ironing or other chemical treatments of the cloth during the production process to form shrinkage differences between fibers, thereby producing wrinkles. The traditional method consumes a lot of water resources and energy, and involves complex production processes, including washing, dehydration, drying and other steps, which not only increases production costs, but also imposes a certain burden on the environment; in addition, the wrinkles formed by traditional washing often weaken after several washings, because the normal washing process gradually eliminates the shrinkage stress between fibers, causing the wrinkles to become less obvious; the weaving method in the present invention obtains a towel with its own wrinkles. Due to the different principles of wrinkling, the wrinkle effect is achieved by the difference in fiber shrinkage, which is more durable and stable in daily use and washing. The preparation of gauze towels with self-wrinkles by this method can reduce the amount of water and electricity required for the preparation process, as shown in Table 5:

[0085] Table 5 Comparison of water and electricity consumption between the conventional process for preparing self-wrinkled gauze towels and the present invention

[0086]

[0087] It can be seen from the above comparison that the manufacturing process of the present application saves a lot of resources, not only reduces production costs, but also has excellent environmental and social benefits.

[0088] Effects of use Figure 3 and Figure 4 As shown: Figure 3 and Figure 4 This is a comparison chart of a towel that has been washed by a traditional water washing process and a gauze towel with self-pleats obtained by the method before and after five washings. It can be clearly seen from the pictures that the wrinkled appearance of the product after washing is different from that of the product before washing. Among them, the self-pleated towel prepared by the traditional water washing process has poor water washing resistance, and its wrinkled effect is weakened after daily use and cleaning; while the self-pleated gauze towel prepared by the method described by the inventor has a different principle of generating wrinkles, and its wrinkled effect can be effectively maintained after washing, and has higher stability.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any equivalent substitutions, modifications, etc. made by technicians in this field without any creative work within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water-free, self-wrinkled, multi-layer gauze towel, comprising an upper and lower surface layer and an inner layer, characterized in that: The upper and lower surface layers are made of pure cotton yarns interwoven with ground warp and weft, and the inner layer is made of sorona / cotton blended fiber yarns interwoven with wool warp and weft.

2. The water-free, self-pleated multi-layer towel according to claim 1, characterized in that: The preparation method of the sorona / cotton blended fiber yarn comprises the following specific steps: (1) Preparation of sorona fiber pre-drawing: sorona fiber and cotton fiber are mixed by a plucking machine at a ratio of 50 wt% of sorona fiber to total fiber, and then the sorona fiber / cotton fiber pre-drawing is obtained by cleaning, thinning, and pre-drawing. (2) Preparation of sorona / cotton blended fiber yarn: The sorona fiber / cotton fiber pre-drawn obtained in step (1) is drawn through a drawing frame, and then sequentially passed through a roving frame, a spinning frame and an automatic doffing machine to obtain a sorona / cotton blended fiber yarn; the drawing process is 2-5 passes.

3. The water-free, self-pleated multi-layer towel according to claim 2, characterized in that: In the step (2), the drawing process is 3 passes; the twist coefficient processed by the roving frame is 270-380, and the spinning count processed by the roving frame is 10s-40s.

4. The water-free, self-pleated multi-layer towel according to claim 2, characterized in that: The sorona / cotton blended fiber yarn in step (2) is subjected to a plying process, and the plying twist is 26 twists.

5. The water-free, self-pleated multi-layer towel according to any one of claims 2 to 4, characterized in that: The sorona / cotton blended fiber yarn has a ratio of sorona fiber to cotton fiber of 1:

1.

6. The water-free, self-pleated multi-layer towel according to claim 1, characterized in that: The linear density of the ground warp yarn is twice that of the wool warp yarn, the warp density of the wool warp is 12-14 yarns / cm, and the warp density of the ground warp is 24-28 yarns / cm.

7. The water-free, self-pleated multi-layer towel according to claim 1, characterized in that: The inner layer is two layers of gauze, and the two layers of gauze are both made of sorona / cotton blended fiber yarn.

8. The water-free, self-pleated multi-layer towel according to claim 1, characterized in that: Make horizontal pattern spacing on the upper and lower surfaces so that the upper and lower surfaces are staggered.

9. The method for preparing the water-free self-wrinkled multi-layer towel according to claim 1, comprising the steps of yarn, warping, weaving, scouring, dyeing and softening, dehydration, drying, cutting, sewing, and finished product, characterized in that: The weaving method comprises the following steps: (1) Dividing the ground warps and the hair warps into two groups, including two layers of ground warps in the surface layer area and two layers of hair warps in the inner layer area, wherein the hair warps and the ground warps are arranged in a cyclic order of hair 1 ground 1 ground 1; (2) Divide the weft yarn into two layers of surface weft yarn and two layers of inner weft yarn; (3) fully lifting the wool warp, interweaving the fully ground warp with the weft yarn to form a lower layer of gauze; fully dropping the wool warp, fully lifting the ground warp, interweaving the fully lifted ground warp with the weft yarn to form an upper layer of gauze, and then circulate in sequence, interweaving with the surface weft yarn and the bottom weft yarn to form an upper layer of gauze and a lower layer of gauze respectively; At the same time, the corresponding surface ground warp is fully raised or fully dropped, and the inner wool warp is interwoven with the weft yarn to form the upper gauze of the inner layer and the lower gauze of the inner layer.

10. The method for preparing the water-free, self-pleated multi-layer towel according to claim 9, characterized in that: The drying process adopts SJ320 airflow softening drying machine.

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