An elastic, mark-free protective cover, a method for manufacturing the same and a textile containing the same

Abstract

The application belongs to the technical field of textiles, and specifically discloses an elastic traceless protective cover, a preparation method thereof, and a textile containing the same. The preparation method of the elastic traceless protective cover comprises the following steps: cutting at least two pieces of fabric including a first piece of elastic fabric and a second piece of elastic fabric; one side of the first piece of elastic fabric contains polyester; the first piece of elastic fabric and the second piece of elastic fabric are aligned and stacked, and then the edges of the two pieces of fabric are ultrasonically bonded together, and the ultrasonic bonding process comprises the following steps: melting the polyester contained in the edge of the first piece of elastic fabric through ultrasonic, and then immediately cooling to bond the fabric together. According to the application, the elastic fabric containing polyester and other specific fibers is selected, the elastic traceless protective cover with soft and comfortable hand feeling is prepared through ultrasonic bonding, the ultrasonic process and parameters are regulated and controlled, the phenomena such as fiber loosening, fluffing and pilling are not prone to occur in the welding area and the edges thereof, the bonding strength is improved, and the negative influence caused by the adhesive tape is solved.

Description

Technical Field

[0001] This application relates to the field of textile technology, and in particular to an elastic, seamless protective cover, its preparation method, and textiles containing the same. Background Technology

[0002] Ultrasonic bonding technology is widely used in clothing, home textiles, medical and health products and other fields due to its environmental protection, high efficiency and lack of adhesives and needles, replacing traditional sewing threads to achieve seamless connection. However, in actual production and daily life applications, elastic protective covers made by ultrasonic bonding technology, such as elastic pillowcases, often exhibit loose fibers, fuzzing, and pilling in the ultrasonic welding area and its edges, which seriously affects the appearance quality and service life of the products. In the existing technology, the above problems are usually alleviated by adjusting the ultrasonic process and parameters (such as reducing ultrasonic power and shortening ultrasonic time) or optimizing the welding head structure. However, the above methods have the following shortcomings: (1) Reducing the ultrasonic energy input can easily lead to insufficient bonding strength, and the product is prone to delamination after washing or stretching; (2) Relying solely on ultrasonic process adjustment cannot fundamentally solve the essential problem of elastic fabric surface fibers separating and forming balls under friction.

[0003] In addition, ultrasonic bonding usually uses pressure strips (or adhesive strips). This method can cause wrinkles at the weld, especially at curved joints, affecting the flatness of the product's appearance. Furthermore, the adhesive strips usually have a certain thickness, which can cause discomfort to the user. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this application is to provide an elastic seamless protective cover, its preparation method, and textiles containing the same, to solve the problems in the prior art where the ultrasonic welding area and its edges of elastic pillowcases made based on ultrasonic bonding technology are prone to fiber loosening, pilling, and other phenomena, as well as insufficient bonding strength, and the presence of adhesive strips affecting the product's appearance flatness and user comfort.

[0005] To achieve the above and other related objectives, this application provides a method for preparing an elastic, non-marking protective case, comprising the following steps:

[0006] Cut at least two pieces of fabric, including a first piece of elastic fabric and a second piece of elastic fabric; one side of the first piece of elastic fabric contains polyester. The first elastic fabric and the second elastic fabric are aligned and stacked, and then their edges are ultrasonically bonded together. The ultrasonic bonding process includes: melting the polyester contained in the edge of the first elastic fabric by ultrasound, and then immediately cooling it to bond the first elastic fabric and the second elastic fabric together to form the elastic seamless protective cover.

[0007] Furthermore, the polyester contained in the first piece of elastic fabric has a melting point of 110~180 ℃.

[0008] Furthermore, the other side of the first piece of elastic fabric contains nylon and / or spandex.

[0009] Furthermore, both the first elastic fabric and the second elastic fabric are four-way stretch fabrics.

[0010] Furthermore, both the first elastic fabric and the second elastic fabric are knitted fabrics.

[0011] Furthermore, both sides of the second elastic fabric contain nylon and / or spandex.

[0012] Furthermore, one side of the second elastic fabric also contains modal fibers; The polyester-containing side of the first elastic fabric is attached and aligned with the modal fiber-containing side of the second elastic fabric, and then the edges of the two are ultrasonically bonded together to form a sleeve with an opening. The sleeve is then turned inside out from the opening to obtain the elastic seamless protective sleeve.

[0013] Furthermore, the ultrasonic bonding process is performed according to at least one of the following processes and parameters (1) to (6): (1) The ultrasonic frequency is 25~30 kHz; (2) The ultrasonic welding head's welding amplitude is 60%~75% of the maximum amplitude; (3) The welding method is spot welding or continuous welding; when the welding method is spot welding, the welding time is 0.5~1.0 s; when the welding method is continuous welding, the welding speed is 8~12 m / min; (4) The welding pressure is 0.25~0.4 MPa; (5) The pressure holding time is 0.3~0.5 s; (6) The cooling method is air cooling or water cooling; when using air cooling, the cooling air velocity is 2.5~3.5 m / s; when using water cooling, the cooling time is 0.8~1.5 s.

[0014] Furthermore, the edges of the first and second elastic fabrics are cut into concave-convex curves, with the concave section of one elastic fabric edge corresponding to the convex section of the other elastic fabric edge. They are aligned and stacked, and then the edges of the two are ultrasonically bonded together to form the elastic seamless protective sleeve with undulating adhesive lines. The bonding line includes a straight segment and an arc segment, and the ultrasonic bonding process is carried out according to the following process and parameters: The welding method is continuous welding; The welding speed is 8~12 m / min, and the welding speed of the arc segment is 20%~33% lower than that of the straight segment; The welding pressure is 0.25~0.4 MPa, and the pressure of the arc segment is 0.05~0.1 MPa higher than that of the straight segment.

[0015] This application also provides an elastic, non-marking protective case, which is made of at least two pieces of fabric bonded together. The elastic seamless protective case includes a first elastic fabric and a second elastic fabric. One side of the first piece of elastic fabric contains polyester; The edges of the first and second elastic fabrics are bonded together by ultrasonically melted polyester.

[0016] Furthermore, the elastic, non-marking protective sleeve also has at least one of the following features (I) to (VIII): (I) The elastic, non-marking protective sleeve is provided with an openable opening; (II) The first piece of elastic fabric contains polyester with a melting point of 110~180 ℃; (III) The side of the first piece of elastic fabric containing polyester is the surface layer of the elastic seamless protective cover; (IV) The other side of the first piece of elastic fabric contains nylon and / or spandex; (V) Both sides of the second elastic fabric contain nylon and / or spandex; (VI) One side of the second elastic fabric contains modal fibers and is the surface layer of the elastic seamless protective cover; (VII) Both the first piece of elastic fabric and the second piece of elastic fabric are four-way stretch fabrics; (VIII) Both the first elastic fabric and the second elastic fabric are knitted fabrics.

[0017] Furthermore, the elastic, seamless protective sleeve is prepared using the method described above.

[0018] This application also provides a textile product comprising the elastic non-marking protective sleeve as described above, and filler material filled within the elastic non-marking protective sleeve.

[0019] As described above, the elastic, seamless protective sleeve, its preparation method, and textiles containing it of this application have the following beneficial effects: 1. One side of the first piece of elastic fabric contains polyester (hereinafter referred to as "polyester side"), which can replace adhesive strips as a solid adhesive. Through ultrasonic action, the polyester side is melted and penetrates to anchor the surface fibers, thereby effectively solving the technical problem of pilling and fuzzing in the welding area without damaging the elasticity and feel of the fabric. It also serves the following purposes: 1. Achieve high strength and seamless adhesion.

[0020] Second, it can reduce the negative impacts of the adhesive strip mentioned above, and the preparation work can be completed by cutting the fabric in one go, avoiding the cutting process of the adhesive strip and reducing the complexity of processing.

[0021] Third, during the ultrasonic bonding process, the polyester surface acts as an interlayer between the two elastic fabrics. Due to the presence of the interlayer, it is not sensitive to fluctuations in ultrasonic processes and parameters, which reduces the difficulty of production debugging and the scrap rate, thereby widening the process window and improving production stability.

[0022] 2. The polyester contained in the first elastic fabric is a low melting point (i.e., melting point of 110~180 ℃) polyester, which requires a low melting temperature. By controlling the ultrasonic energy so that it is mainly used to melt the middle polyester surface, the other side of the first elastic fabric and the second elastic fabric are minimally affected by heat, thus not easily affecting the elasticity of the fabric itself, and keeping the fabric soft to the touch.

[0023] 3. Fabrics containing nylon / spandex have good elasticity. Further use of four-way stretch and knitted fabrics can make the protective case even more elastic. Moreover, four-way stretch fabrics can be cut into any shape, which can prevent the ultrasonic welding area and edges of the protective case from loosening, pilling, or other problems.

[0024] 4. Adding modal fibers to one side of the second elastic fabric containing nylon / spandex and using it as the outer layer of the protective case makes the case feel better and softer, and more comfortable to use. However, compared with other fibers (such as nylon, spandex, etc.), modal fibers are prone to pilling due to ultrasonic heating and external friction. Therefore, setting the polyester side and the nylon / spandex side to contact and bond, and applying the ultrasonic welding head to the nylon / spandex side, can effectively reduce the pilling of modal fibers caused by the ultrasonic bonding process.

[0025] 4. Ultrasonic bonding according to the above process and parameters can reduce damage to the fabric, promote the penetration of polyester melt, improve bonding strength, and at the same time quickly solidify the polyester melt, prevent residual heat from spreading and damaging the other side of the fabric, and improve production efficiency.

[0026] 5. The fabric edges are cut into concave-convex curves, giving the protective case undulating adhesive lines. Compared to straight adhesive bonding, this reduces stress and increases adhesive strength.

[0027] Furthermore, compared to straight sections, the welding speed of arc sections is reduced by 20% to 33%, while the pressure is increased by 0.05 to 0.1 MPa, which ensures sufficient energy at the arc and a firm, wrinkle-free bond.

[0028] 6. The elastic, seamless protective cover provided in this application retains the original elasticity of the fabric, has a soft and comfortable feel, high adhesive strength, and excellent anti-pilling and anti-fuzzing properties. It is suitable for use as a protective cover for pillow and cushion products (such as pillows, cushions, backrests, etc.), and is especially suitable as a pillowcase for products such as sleeping pillows that have long contact time with the human body, are used frequently, and have high requirements for comfort. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0030] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of the elastic protective sleeve provided in some embodiments of this application; Figure 2 This is a left view of an elastic protective sleeve provided in another embodiment of this application.

[0031] The attached figures are labeled as follows: First elastic fabric 1, second elastic fabric 2, adhesive line 3, straight segment 301, arc segment 302. Detailed Implementation

[0032] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] In this application, unless otherwise stated, the term "multiple" means two or more.

[0034] The character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0035] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0037] Please see Figure 1 , Figure 1 The elastic, non-marking protective sleeve provided for a basic embodiment of this application, such as Figure 1 As shown, the elastic seamless protective case is made of at least two pieces of fabric bonded together; the elastic seamless protective case includes a first elastic fabric 1 and a second elastic fabric 2; one side of the first elastic fabric 1 contains polyester (hereinafter referred to as the "polyester side"). Figure 1 In addition to the A1 side, it may also contain other fibers, such as nylon, spandex, etc.; the edges of the first elastic fabric 1 and the second elastic fabric 2 are bonded together by ultrasonically melted polyester.

[0038] In some embodiments of this application, the method for preparing the elastic, seamless protective sleeve includes the following steps: Cut at least two pieces of fabric, including the first piece of elastic fabric 1 and the second piece of elastic fabric 2. The first elastic fabric 1 and the second elastic fabric 2 are aligned and stacked, and then their edges are ultrasonically bonded together. The ultrasonic bonding process includes: melting the polyester contained in the edge of the first elastic fabric 1 by ultrasound, and then immediately cooling it to bond the first elastic fabric 1 and the second elastic fabric 2 together to form the elastic seamless protective sleeve.

[0039] The above method for preparing elastic, seamless protective cases has the following advantages: the polyester surface can replace adhesive strips as a solid adhesive. Ultrasonic waves melt the polyester surface and allow it to penetrate and anchor the surface fibers, effectively solving the technical problem of pilling and fuzzing in the welding area without damaging the fabric's elasticity and feel. It also achieves the following effects: 1. Achieve high strength and seamless adhesion.

[0040] Second, it can reduce the negative impacts of the adhesive strip mentioned above, and the preparation work can be completed by cutting the fabric in one go, avoiding the cutting process of the adhesive strip and reducing the complexity of processing.

[0041] Third, during the ultrasonic bonding process, the polyester surface acts as an interlayer between the two elastic fabrics. Due to the presence of the interlayer, it is not sensitive to fluctuations in ultrasonic processes and parameters, which reduces the difficulty of production debugging and the scrap rate, thereby widening the process window and improving production stability.

[0042] To avoid affecting the elasticity of the fabric itself, in some embodiments of this application, the polyester contained in the first elastic fabric 1 is a low-melting-point polyester with a melting point of 110~180 ℃. The low melting point of the polyester requires a low melting temperature, which allows the ultrasonic energy to be controlled primarily to melt the middle polyester surface, minimizing the thermal impact on the other side of the first elastic fabric 1 and the second elastic fabric 2, ensuring that the fabric retains ≥95% of its elasticity and maintaining its original softness.

[0043] The first elastic fabric 1 and the second elastic fabric 2 are characterized by having two sides composed of yarns of different fibers, belonging to double-sided weft-knitted fabrics, i.e., knitted fabrics. To ensure the protective case has superior elasticity, in some embodiments of this application, the other side of the first elastic fabric 1 (denoted as side B1) contains or only contains elastic fibers, and both sides of the second elastic fabric 2 (denoted as sides A2 and B2, respectively) contain nylon and / or spandex, such as nylon and / or spandex. For example, the mass percentage of polyester in the first elastic fabric 1 is 20%~50%, and the mass percentage of nylon and / or spandex is 50%~80%; the mass percentage of nylon and / or spandex in side A2 of the second elastic fabric 2 is 20%~30%, and the mass percentage of nylon and / or spandex in side B2 of the second elastic fabric 2 is 40%~50%. Controlling the content of elastic fibers in the two fabrics ensures that the protective case has excellent elasticity and is durable.

[0044] In some embodiments of this application, the first elastic fabric 1 and the second elastic fabric 2 are both four-way stretch fabrics, preferably four-way stretch fabrics with a knitted structure. Four-way stretch fabrics can be cut into any shape, making it less prone to fiber loosening, pilling, or fuzzing in the ultrasonic welding area and edges of the protective sleeve.

[0045] In other embodiments of this application, one side of the second elastic fabric 2 (i.e. Figure 1The A2 side shown also contains modal fibers. The modal fiber content in the A2 side of the second elastic fabric 2 is 20%~30%. The preparation method of the protective cover is as follows: the A1 side and the A2 side are attached and aligned, and then the edges of the two are ultrasonically bonded together to form a cover with an opening. Then, the cover is turned outward from the opening to obtain the elastic seamless protective cover. At this time, the A1 side and the A2 side become the outer layer of the elastic seamless protective cover, while the B1 side and the B2 side become the inner layer of the elastic seamless protective cover. Adding modal fibers to the A2 side as the outer layer of the protective case makes it feel softer and more comfortable to use. However, compared to other fibers (such as nylon and spandex), modal fibers are prone to pilling due to ultrasonic heating and external friction. Therefore, by bonding the polyester side and the nylon / spandex side together and applying ultrasonic welding to the nylon / spandex side, pilling of the modal fibers caused by the ultrasonic bonding process can be effectively reduced. Additionally, the opening on the elastic, non-marking protective case can be fitted with a zipper or other closure for easy removal and washing; alternatively, the elastic, non-marking protective case can be first placed on the object to be protected, and then the opening can be sealed using ultrasonic bonding or other methods to form a non-removable and non-washable protective case.

[0046] During ultrasonic bonding, to minimize damage to the fabric, promote polyester melt penetration, improve bonding strength, and rapidly solidify the polyester melt to prevent residual heat diffusion and damage to the other side of the fabric, as well as improve production efficiency, the ultrasonic bonding process is carried out according to the following parameters in some embodiments of this application: the ultrasonic frequency is, for example, 25~30 kHz, which minimizes damage to fabrics containing nylon / spandex / modal fibers and is suitable for thin, elastic fabrics. The ultrasonic welding head amplitude is, for example, 60%~75% of the maximum amplitude, adjusted from low to high until the polyester surface is just melted. The welding method is, for example, spot welding or continuous welding: when using spot welding, the welding time is 0.5~1.0 s; when using continuous welding, the welding speed is 8~12 m / min. The specific welding method and the required welding time or speed are adjusted according to the type of welding head and the bonding area. The welding pressure is, for example, 0.25~0.4 MPa. The holding time is, for example, 0.3~0.5 s, to ensure close contact between the two layers of fabric and promote polyester melt penetration. Cooling methods include air cooling or water cooling. Air cooling refers to cooling using air knives or fans; water cooling refers to cooling via cooling rollers. Cooling water is circulated inside the cooling rollers, and the heat is rapidly transferred to the cooling water through direct contact between the rollers and the hot material, and then discharged through a circulation system. When using air cooling, the cooling air velocity is 2.5~3.5 m / s; when using water cooling, the cooling time is 0.8~1.5 s.

[0047] In some embodiments of this application, the edges of the first elastic fabric 1 and the second elastic fabric 2 are cut into concave-convex curves, with the concave section of one elastic fabric edge corresponding to the convex section of the other elastic fabric edge. They are aligned and stacked, and then their edges are ultrasonically bonded together to form the elastic, seamless protective sleeve with undulating adhesive lines 3. Cutting the fabric edges into concave-convex curves, giving the protective sleeve undulating adhesive lines 3, reduces stress and increases adhesive strength compared to straight-line bonding. Further, please refer to... Figure 1 and Figure 2 As shown, the adhesive joint 3 includes a straight segment 301 and an arc segment 302. Compared to the straight segment 301, the arc segment 302 requires special treatment during ultrasonic bonding. For example, in the arc segment 302, the welding method is continuous welding; the welding speed is 8~12 m / min, and the welding speed of the arc segment 302 is 20%~33% lower than that of the straight segment 301; the welding pressure is 0.25~0.4 MPa, and the pressure of the arc segment 302 is 0.05~0.1 MPa higher than that of the straight segment 301. Compared to the straight segment 301, the welding speed of the arc segment 302 is reduced by 20%~33%, while the pressure is increased by 0.05~0.1 MPa, ensuring sufficient energy at the arc and a strong, wrinkle-free bond.

[0048] The elastic seamless protective cover provided in this application retains the original elasticity of the fabric, has a soft and comfortable feel, high bonding strength, excellent washability (no delamination after 5 standard washes), and excellent anti-pilling performance. Tested with a Martindale abrasion tester (ISO 12945-2), the pilling level of the welded area and its edges can reach 4-5 (maximum 5, while the pilling level of conventional nylon / spandex rib fabric directly ultrasonically bonded is only 2-3). It is suitable for use as a protective cover for pillow and cushion products (such as pillows, seat cushions, backrest cushions, etc.), especially suitable as a pillowcase for products such as sleeping pillows that have long contact time with the human body, are frequently used, and have high comfort requirements. Based on this, another embodiment of this application provides a textile product, which includes the elastic seamless protective cover as described above, and filling material inside the elastic seamless protective cover. The textile product includes pillow and cushion products, such as pillows, seat cushions, backrest cushions, but is not limited to these.

[0049] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A method for preparing an elastic, seamless protective sleeve, characterized in that, Includes the following steps: Cut at least two pieces of fabric, including a first piece of elastic fabric and a second piece of elastic fabric; one side of the first piece of elastic fabric contains polyester. The first elastic fabric and the second elastic fabric are aligned and stacked, and then their edges are ultrasonically bonded together. The ultrasonic bonding process includes: melting the polyester contained in the edge of the first elastic fabric by ultrasound, and then immediately cooling it to bond the first elastic fabric and the second elastic fabric together to form the elastic seamless protective cover.

2. The method for preparing the elastic, seamless protective sleeve according to claim 1, characterized in that: The first piece of elastic fabric contains polyester with a melting point of 110~180 ℃; And / or, the other side of the first piece of elastic fabric contains nylon and / or spandex; And / or, both the first elastic fabric and the second elastic fabric are four-way stretch fabrics; And / or, both the first elastic fabric and the second elastic fabric are knitted fabrics.

3. The method for preparing the elastic, seamless protective sleeve according to claim 1, characterized in that: The second elastic fabric contains nylon and / or spandex on both sides.

4. The method for preparing the elastic, seamless protective sleeve according to claim 3, characterized in that: One side of the second elastic fabric also contains modal fibers; The polyester-containing side of the first elastic fabric is attached and aligned with the modal fiber-containing side of the second elastic fabric, and then the edges of the two are ultrasonically bonded together to form a sleeve with an opening. The sleeve is then turned inside out from the opening to obtain the elastic seamless protective sleeve.

5. The method for preparing the elastic, seamless protective sleeve according to any one of claims 1 to 4, characterized in that: The ultrasonic bonding process is performed according to at least one of the following processes and parameters (1) to (6): (1) The ultrasonic frequency is 25~30 kHz; (2) The ultrasonic welding head's welding amplitude is 60%~75% of the maximum amplitude; (3) The welding method is spot welding or continuous welding; when the welding method is spot welding, the welding time is 0.5~1.0 s; when the welding method is continuous welding, the welding speed is 8~12 m / min; (4) The welding pressure is 0.25~0.4 MPa; (5) The pressure holding time is 0.3~0.5 s; (6) The cooling method is air cooling or water cooling; when using air cooling, the cooling air velocity is 2.5~3.5 m / s; when using water cooling, the cooling time is 0.8~1.5 s.

6. The method for preparing the elastic, seamless protective sleeve according to claim 5, characterized in that: The edges of the first and second elastic fabrics are cut into concave-convex curves, with the concave section of one elastic fabric edge corresponding to the convex section of the other elastic fabric edge. They are aligned and stacked, and then the edges of the two are ultrasonically bonded together to form the elastic seamless protective sleeve with undulating adhesive lines. The bonding line includes a straight segment and an arc segment, and the ultrasonic bonding process is carried out according to the following process and parameters: The welding method is continuous welding; The welding speed is 8~12 m / min, and the welding speed of the arc segment is 20%~33% lower than that of the straight segment; The welding pressure is 0.25~0.4 MPa, and the pressure of the arc segment is 0.05~0.1 MPa higher than that of the straight segment.

7. An elastic, traceless protective case, characterized in that: The elastic, seamless protective case is made of at least two pieces of fabric bonded together. The elastic seamless protective case includes a first elastic fabric and a second elastic fabric. One side of the first piece of elastic fabric contains polyester; The edges of the first and second elastic fabrics are bonded together by ultrasonically melted polyester.

8. The elastic, seamless protective sleeve according to claim 7, characterized in that, The elastic, non-marking protective case also has at least one of the following features (I) to (VIII): (I) The elastic, non-marking protective sleeve is provided with an openable opening; (II) The first piece of elastic fabric contains polyester with a melting point of 110~180 ℃; (III) The side of the first piece of elastic fabric containing polyester is the surface layer of the elastic seamless protective cover; (IV) The other side of the first piece of elastic fabric contains nylon and / or spandex; (V) Both sides of the second elastic fabric contain nylon and / or spandex; (VI) One side of the second elastic fabric contains modal fibers and is the surface layer of the elastic seamless protective cover; (VII) Both the first piece of elastic fabric and the second piece of elastic fabric are four-way stretch fabrics; (VIII) Both the first elastic fabric and the second elastic fabric are knitted fabrics.

9. The elastic, seamless protective sleeve according to claim 7, characterized in that: The elastic, seamless protective sleeve is prepared using the method described in any one of claims 1 to 6.

10. A textile product, characterized in that: The textile includes the elastic seamless protective sleeve as described in any one of claims 7 to 9, and filler material filled within the elastic seamless protective sleeve.

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