Four-side elastic non-woven fabric

Abstract

The utility model discloses a four-side elastic non-woven fabric which comprises a first fiber net, a second fiber net and a third fiber net, the first fiber net, the second fiber net and the third fiber net are reinforced through fiber lapping to form the four-side elastic non-woven fabric, the second fiber net is located between the first fiber net and the third fiber net, and the second fiber net is arranged and lapped in a 45-degree crossed mode. The first fiber net is longitudinally and directly laid to form the net, and the third fiber net is transversely and directly laid to form the net, so that the elasticity of the non-woven fabric is increased, the non-deformation property of the non-woven fabric is improved, and the air permeability and the moisture absorption and sweat releasing property of the fabric are improved.

Description

Technical Field

[0001] The utility model relates to the field of textiles, and more specifically to a four-sided elastic non-woven fabric. Background Art

[0002] At present, the elastic non-woven fabrics on the market basically use lamination to achieve the elastic performance of the non-woven fabrics. Although the lamination increases the high elasticity of the non-woven fabrics, it can rarely achieve elasticity in both the vertical and horizontal directions. In addition, the lamination uses PP film or PE film. After a long time, the non-woven fabrics will experience elastic fatigue and lose their elasticity. In addition, the non-woven fabrics are bonded by hot melt adhesives, which will easily cause stratification over time. After lamination, the air permeability, moisture absorption and perspiration of the non-woven fabrics will be affected, and the non-woven fabrics cannot always stay close to the body. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a four-sided stretch non-woven fabric. The longitudinal and transverse elasticity of the non-woven fabric is achieved through the elastic fibers in the fiber web, and the fiber laying methods are different to form a rebound buffer cavity, which is reinforced by high-pressure fine water flow, and the fibers are entangled with each other to change the hot melt adhesive bonding, thereby improving the continuous maintenance of the elasticity of the non-woven fabric without stratification, and at the same time improving the air permeability and moisture absorption and perspiration discharge of the non-woven fabric, so as to facilitate direct contact with human skin.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a four-sided elastic non-woven fabric, comprising a first fiber web, a second fiber web and a third fiber web, which are reinforced by fiber laying to form the four-sided elastic non-woven fabric, the second fiber web is located between the first fiber web and the third fiber web, and the second fiber web is laid in a cross-arranged manner, the longitudinal fibers and transverse fibers of the second fiber web are crossed to form a rebound buffer cavity, the first fiber web is laid in a longitudinal direction, and the third fiber web is laid in a transverse direction.

[0006] Furthermore, the second fiber web is cross-arranged through longitudinal fibers and transverse fibers in a rebound buffer cavity at an angle of 45 degrees to 90 degrees.

[0007] Furthermore, the rebound buffer cavity is approximately a parallelogram, and its angle α is 45 degrees.

[0008] Furthermore, the rebound buffer cavity is approximately rhombus-shaped, and its α angle is 60 degrees.

[0009] Furthermore, the rebound buffer cavity is approximately square, and its α angle is 90 degrees.

[0010] Furthermore, the longitudinal fibers of the second fiber web are polyester fibers and graphene fibers, forming longitudinal tensile resistance, and the transverse fibers are viscose fibers and graphene fibers, forming transverse tensile resistance.

[0011] Furthermore, the first fiber web is formed by mixing cotton fibers, bamboo fibers and spandex fibers and laying them vertically.

[0012] Furthermore, the third fiber web is formed by mixing polyester fibers and spandex fibers and laying them horizontally and directly into a web.

[0013] Furthermore, after forming the nonwoven fabric, the first fiber web, the second fiber web and the third fiber web are longitudinally stretched by 2.3-3.1 times, deformed by 1.2mm-2mm after longitudinal stretching, and transversely stretched by 2.8-3.5 times, deformed by 2.3mm-3.1mm after transverse stretching.

[0014] Furthermore, after the first fiber web, the second fiber web and the third fiber web form a non-woven fabric, the gram weight is 20g / m^2-60g / m^2.

[0015] The beneficial effects of the utility model are:

[0016] The four-sided stretch non-woven fabric is reinforced with three layers of fiber mesh through high-pressure fine water flow. The first fiber mesh and the third fiber mesh form longitudinal and transverse elasticity respectively through elastic fibers. At the same time, the second fiber mesh forms a rebound buffer cavity through the cross-arrangement of fibers to form stretch resistance. The rebound buffer cavity is hollow, which not only increases the elasticity of the non-woven fabric, but also increases the deformation resistance of the non-woven fabric, while improving the breathability and moisture absorption and perspiration resistance of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a four-sided elastic non-woven fabric in this embodiment;

[0018] Figure 2 Schematic diagram of the fiber web structure of a four-sided elastic non-woven fabric in this embodiment;

[0019] Figure 3 It is a top view of a first structure of a second fiber web in a four-sided elastic non-woven fabric in this embodiment;

[0020] Figure 4 It is a top view of a second structure of a second fiber web in a four-sided elastic non-woven fabric in this embodiment;

[0021] Figure 5 This is a top view of the third structure of the second fiber web in the four-sided elastic non-woven fabric in this embodiment.

[0022] Reference numerals: first fiber web 1 , second fiber web 2 , third fiber web 3 , rebound buffer chamber 4 . DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 As shown in FIG. 5 , the utility model provides a four-sided elastic nonwoven fabric, comprising a first fiber web 1, a second fiber web 2 and a third fiber web 3. The second fiber web 2 is an internal support layer, and is webbed by fibers in two different directions, longitudinal and transverse. The longitudinal fibers are made of a mixture of polyester fibers and graphene fibers, and the ratio is 5:5. The transverse fibers are made of viscose fibers and graphene fibers, and the ratio is 5:5. The fibers are dissolved and then spun into continuous filaments through a spinning device. The longitudinal fibers and the transverse fibers are cross-arranged at an angle of 45 degrees to 90 degrees to form a rebound buffer cavity.

[0025] Reference Figure 3 When the longitudinal fibers and the transverse fibers in the second fiber web 2 are cross-arranged at an angle α of 45 degrees, the rebound buffer cavity 4 is approximately a parallelogram. When the non-woven fabric is stretched on four sides, the rebound buffer cavity 4 will provide an anti-stretching force in the stretching direction. Therefore, when the stretching force is lost, the rebound buffer cavity 4 will not cause the non-woven fabric to be severely deformed due to too fast rebound after stretching, and the non-woven fabric can continue to maintain elasticity on four sides.

[0026] Reference Figure 4 When the longitudinal fibers and the transverse fibers in the second fiber web 2 are cross-arranged at an angle α of 60 degrees, the rebound buffer cavity 4 is approximately rhombus-shaped. When the non-woven fabric is stretched on four sides, the rebound buffer cavity 4 will provide an anti-stretching force in the stretching direction. Therefore, when the stretching force is lost, the rebound buffer cavity 4 will not cause the non-woven fabric to be severely deformed due to too fast rebound after stretching, and the non-woven fabric can continue to maintain elasticity on four sides.

[0027] Reference Figure 5 When the longitudinal fibers and the transverse fibers in the second fiber web 2 are cross-arranged with an angle α of 90 degrees, the rebound buffer cavity 4 is approximately square. When the non-woven fabric is stretched on four sides, the rebound buffer cavity 4 will provide an anti-stretching force in the stretching direction. Therefore, when the stretching force is lost, the rebound buffer cavity 4 will not cause the non-woven fabric to be severely deformed due to too fast rebound after stretching, and the non-woven fabric can continue to maintain elasticity on four sides.

[0028] The longitudinal fibers and the transverse fibers are cross-entangled in a directional manner by jetting high-pressure fine water flow. The fibers in the second fiber web 2 are inelastic but have graphene fibers. The graphene fibers have a two-dimensional crystal honeycomb structure with high structural strength. The graphene fibers are respectively located in the longitudinal fibers and the transverse fibers. Therefore, when the four-sided elastic non-woven fabric is stretched longitudinally, the longitudinal fibers in the second fiber web 2 are inelastic but have graphene fibers. Therefore, the longitudinal fibers of the second fiber web 2 form an anti-tensile force. Similarly, when the four-sided elastic non-woven fabric is stretched transversely, the longitudinal fibers in the second fiber web 2 are inelastic and have graphene fibers. The longitudinal fibers have no elasticity and contain graphene fibers, so the transverse fibers of the second fiber web 2 also form an anti-tensile force, which makes the second fiber web 2 lack sufficient stretching. At the same time, because the longitudinal fibers and the transverse fibers are cross-arranged, the second fiber web 2 forms an inclined rebound buffer cavity through high-pressure micro-water flow. When the four-sided elastic non-woven fabric is stretched longitudinally and transversely, the elastic force rebounds through the rebound buffer cavity of the second fiber web 2 to form a buffer and the longitudinal and transverse inelastic fibers to form tensile strength, which can not only continuously maintain the elasticity, but also reduce the deformation of the four-sided elastic non-woven fabric.

[0029] The rebound buffer cavity formed by the longitudinal fibers and transverse fibers of the second fiber web 2 is hollow. The second fiber web 2 is located between the first fiber web 1 and the third fiber web 3. Therefore, when the fibers are entangled by high-pressure fine water flow, the three layers of fibers at the grid of the second fiber web 2 are relatively thin. Therefore, when the user uses it, the hot air generated can quickly pass through the second fiber web 2 after passing through the first fiber web 1, and then reach the third fiber web 3 to be discharged from the body, so that the non-woven fabric will not be deformed due to multiple stretching and the air permeability of the non-woven fabric can be increased.

[0030] The first fiber web 1 is made of cotton fiber, bamboo fiber and spandex fiber, which are dissolved and then spun into continuous filaments through a spinning device, and the ratio is 4:2:4. The first fiber web 1 is laid in a longitudinal direction, and the proportion of spandex fiber is relatively large, thereby forming a longitudinal elastic force. Because the longitudinal fibers are laid in a longitudinal direction and there is no crossing of transverse fibers, the air permeability and moisture permeability between the longitudinal fibers are relatively large. Therefore, when the cotton fiber, bamboo fiber and spandex fiber are laid in the longitudinal direction into a fiber web, not only can the moisture absorption and perspiration of the fabric be increased, but the cotton fiber and bamboo fiber can also make the first fiber web 1 closer to the skin.

[0031] The third fiber web 3 is made of polyester fiber and spandex fiber dissolved and spun into continuous filaments through a spinning device, and the ratio is 4:6. The third fiber web 3 is laid horizontally in one direction, and the spandex fiber content is greater than the polyester fiber content, thereby forming a large horizontal elastic force. Also, because the horizontal fibers are laid horizontally in one direction and there is no crossing of the longitudinal fibers, the air permeability and moisture permeability between the horizontal fibers are large, thereby increasing the breathability and moisture absorption and perspiration management of the fabric.

[0032] The first fiber web 1 and the third fiber web 3 form the longitudinal and transverse elasticity of the non-woven fabric. Since the proportion of spandex fibers is relatively large, the non-woven fabric has relatively large elasticity. However, the spandex content of the first fiber web 1 is lower than that of the third fiber web 3, and the longitudinal stretching is less than the transverse stretching. Therefore, the longitudinal stretching reaches 2.3-3.1 times, and the transverse stretching can reach 2.8-3.5 times. The buffer grid formed by the vertical and horizontal cross arrangement of the second fiber web 2 is deformed by 1.2mm-2mm after longitudinal stretching, and by 2.3mm-3.1mm after transverse stretching. This allows the four-sided stretch non-woven fabric to still maintain elasticity within the deformation range after multiple stretching.

[0033] The first fiber web 1 is laid in a longitudinal unidirectional manner, the second fiber web 2 is laid in a longitudinal and transverse cross-laying manner, and the third fiber web 3 is laid in a transverse unidirectional manner. Because the first fiber web 1 and the third fiber web 3 are laid in a unidirectional manner without cross-entanglement in the opposite direction, and the second fiber web 2 is arranged in a longitudinal and transverse cross-laying manner, the longitudinal fibers and transverse fibers of the second fiber web 2 will not only be entangled with each other through high-pressure fine water jet reinforcement, but the longitudinal fibers of the second fiber web 2 will also be entangled with the transverse fibers of the third fiber web 3, and the transverse fibers of the second fiber web 2 will also be entangled with the longitudinal fibers of the first fiber web 1. Entanglement, so the three layers can be made more firm after being entangled, and because of the entanglement of the three, the longitudinal and transverse fibers of the second fiber web 2 will be dispersed to the first fiber web 1 and the third fiber web 3, and the first fiber web 1 and the third fiber web 3 will also be due to the longitudinal and transverse fibers of the second fiber web 2. Move closer to the second fiber web 2, so after the three-layer fiber web is reinforced by high-pressure fine water jet, some fibers between the three layers of fiber webs are entangled with each other, making it difficult for the three layers to be delaminated, the fabric surface is delicate, and its gram weight is only 20g / m^2-60g / m^2, which is relatively light and thin.

[0034] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A four-sided elastic nonwoven fabric, characterized in that: The invention comprises a first fiber web (1), a second fiber web (2) and a third fiber web (3), wherein the three are reinforced by fiber laying to form a four-sided elastic non-woven fabric, wherein the second fiber web (2) is located between the first fiber web (1) and the third fiber web (3), and the second fiber web (2) is laid in a cross-arranged manner, wherein the longitudinal fibers and the transverse fibers of the second fiber web (2) cross to form a rebound buffer cavity (4), and the first fiber web (1) is laid in a longitudinal straight manner and the third fiber web (3) is laid in a transverse straight manner.

2. The four-sided elastic nonwoven fabric according to claim 1, characterized in that: The second fiber web (2) is cross-arranged through the longitudinal fibers and the transverse fibers in the rebound buffer cavity (4) at an angle of 45 degrees to 90 degrees.

3. The four-sided elastic nonwoven fabric according to claim 2, characterized in that: The rebound buffer cavity (4) is approximately a parallelogram, and its angle α is 45 degrees.

4. The four-sided elastic nonwoven fabric according to claim 2, characterized in that: The rebound buffer cavity (4) is approximately rhombus-shaped, and its angle α is 60 degrees.

5. The four-sided elastic nonwoven fabric according to claim 2, characterized in that: The rebound buffer cavity (4) is approximately square, and its angle α is 90 degrees.

6. The four-sided elastic nonwoven fabric according to claim 1, characterized in that: The longitudinal fibers of the second fiber web (2) are polyester fibers and graphene fibers, and the transverse fibers are viscose fibers and graphene fibers.

7. The four-sided elastic nonwoven fabric according to claim 1, characterized in that: The first fiber web (1) is made of a mixture of cotton fibers, bamboo fibers and spandex fibers, which are laid vertically to form a web.

8. The four-sided elastic nonwoven fabric according to claim 1, characterized in that: The third fiber web (3) is made of a mixture of polyester fibers and spandex fibers which are laid horizontally and directly into a web.

9. The four-sided elastic nonwoven fabric according to claim 1, characterized in that: After forming a nonwoven fabric, the first fiber web (1), the second fiber web (2) and the third fiber web (3) are longitudinally stretched by 2.3-3.1 times, deformed by 1.2mm-2mm after longitudinal stretching, and transversely stretched by 2.8-3.5 times, deformed by 2.3mm-3.1mm after transverse stretching.

10. The four-sided elastic nonwoven fabric according to claim 1, characterized in that: After the first fiber web (1), the second fiber web (2) and the third fiber web (3) form a non-woven fabric, the gram weight is 20g / m^2-60g / m^2.

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