Composite cloth of cellulose fiber and gauze

Abstract

The utility model relates to gauze composite cloth, in particular to cellulose fiber and gauze composite cloth, which comprises a gauze layer and a first composite fiber layer, the first composite fiber layer is formed by mutually crossing a plurality of cellulose fiber layers, and the gauze layer is attached to one surface of the first composite fiber layer. According to the composite cloth disclosed by the utility model, the first composite fiber layer formed by mutually crossing the plurality of cellulose fiber layers is attached to the gauze layer, so that compared with a single-layer fiber layer structure, the first composite fiber layer formed by mutually crossing the plurality of cellulose fiber layers can increase the entanglement coefficient between the fiber layers, and the fiber layer structure is more compact. The tensile strength of the composite cloth is greatly improved.

Description

Technical Field

[0001] The utility model relates to a gauze composite cloth, in particular to a composite cloth of cellulose fiber and gauze which has a soft hand feel, is comfortable to fit and has excellent moisture absorption performance. Background Art

[0002] Cellulose fiber is called regenerated cellulose fiber, also known as artificial fiber. It is made from natural cellulose (cotton, linen, bamboo, trees, shrubs) without changing its chemical structure, but only changing the physical structure of natural cellulose to produce regenerated cellulose fiber with better performance. The structural composition of cellulose fiber is similar to that of cotton, but the difference is that its moisture absorption and air permeability are better than cotton fiber. It can be said that it has the best moisture absorption and air permeability among all chemical fibers, and is known as "breathing fabric".

[0003] Cellulose fibers are classified into tencel fibers and viscose fibers. Regardless of whether it is tencel fiber or viscose fiber, the strength of the composite cloth formed by combining it with gauze (such as tensile strength, the tensile strength of the fiber refers to the maximum load that the fiber can withstand during the stretching process) is relatively low. For example, the existing patent announcement number CN109703137A discloses a composite cloth of ultra-fine viscose fiber and pure cotton gauze and its preparation process. The composite cloth of this patent is made of a mesh fiber layer and a base cloth, and the base cloth is pure cotton gauze.

[0004] However, in the composite cloth disclosed in the above patent, the mesh fiber layer is a single-layer structure, which results in low tensile strength of the composite cloth formed by combining the fiber layer and the base cloth, thus affecting the use of the composite cloth. Utility Model Content

[0005] One of the purposes of the utility model is to provide a composite cloth of cellulose fiber and gauze, which aims to solve the technical problem that in the existing composite cloth formed by the fiber layer and the gauze, the tensile strength of the composite cloth formed by the fiber layer and the base cloth is low because the fiber layer is a single-layer structure.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a composite cloth of cellulose fiber and gauze, including a gauze layer and a first composite fiber layer, wherein the first composite fiber layer is formed by multiple layers of cellulose fiber layers being cross-arranged with each other, and the gauze layer is bonded to a surface of the first composite fiber layer.

[0007] Furthermore, the composite cloth also includes a second composite fiber layer, which is formed by multiple layers of cellulose fiber layers arranged crosswise with each other, and the gauze layer is sandwiched between the first composite fiber layer and the second composite fiber layer, and the relative surfaces of the gauze layer are respectively bonded to the first composite fiber layer and the second composite fiber layer.

[0008] Furthermore, the number of cellulose fiber layers in the second composite fiber layer and the first composite fiber layer is the same or different.

[0009] Furthermore, the first composite fiber layer includes three cellulose fiber layers, which are respectively a first cellulose fiber layer, a second cellulose fiber layer and a third cellulose fiber layer, the second cellulose fiber layer and the third cellulose fiber layer are stacked on the first cellulose fiber layer in sequence, and the first cellulose fiber layer, the second cellulose fiber layer and the third cellulose fiber layer are crossed with each other, the two ends of the second cellulose fiber layer are respectively flush with the two sides of the first cellulose fiber layer in the width direction, and the two ends of the third cellulose fiber layer are respectively flush with the opposite sides of the first cellulose fiber layer in the width direction.

[0010] Furthermore, the second cellulose fiber layer and the third cellulose fiber layer are connected end to end, so that the second cellulose fiber layer and the third cellulose fiber layer are connected to form an uninterrupted fiber composite layer.

[0011] Furthermore, the second composite fiber layer includes two cellulose fiber layers, which are respectively a first cellulose fiber layer and a second cellulose fiber layer. The second cellulose fiber layer and the first cellulose fiber layer are arranged crosswise with each other, and both ends of the second cellulose fiber layer are respectively flush with both sides of the first cellulose fiber layer in the width direction.

[0012] Furthermore, the second cellulose fiber layer and the first cellulose fiber layer intersect at an angle of 150°.

[0013] Furthermore, the second cellulose fiber layer and the first cellulose fiber layer intersect at an angle of 150°, and the third cellulose fiber layer and the first cellulose fiber layer intersect at an angle of 60°.

[0014] Furthermore, the gauze layer is medical gauze.

[0015] Furthermore, the cellulose fiber layer is made of one or more types of regenerated cellulose fibers.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The composite cloth of the utility model is formed by interlacing multiple cellulose fiber layers to form a first composite fiber layer and a gauze layer. Compared with a single fiber layer structure, the composite fiber layer formed by interlacing multiple cellulose fiber layers can greatly improve the tensile strength of the composite cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of a composite cloth according to an embodiment of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the composite cloth of the utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure from another angle;

[0021] Figure 4 The embodiment of the utility model relates to a top view of a composite cloth;

[0022] Figure 5 This is a schematic structural diagram of a first cellulose fiber layer, a second cellulose fiber layer and a third cellulose fiber layer connected to each other in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic structural diagram of an embodiment of the utility model in which the number of cellulose fiber layers in the second composite fiber layer is different from the number of cellulose fiber layers in the first composite fiber layer.

[0024] Reference numerals in the accompanying drawings:

[0025] 1. first composite fiber layer; 2. gauze layer; 3. second composite fiber layer; 4. first cellulose fiber layer; 41. second cellulose fiber layer; 42. third cellulose fiber layer. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] In the description of the present utility model, it should be understood that the terms "width", "upper", "lower", "front", "rear", "top", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0028] Please refer to Figure 1-Figure 5The utility model provides a composite cloth of cellulose fiber and gauze, comprising a first composite fiber layer 1, a gauze layer 2 and a second composite fiber layer 3. The first composite fiber layer 1 is formed by a plurality of cellulose fiber layers interlaced with each other, the gauze layer 2 is bonded to one surface of the first composite fiber layer 1, and the second composite fiber layer 3 is also formed by a plurality of cellulose fiber layers interlaced with each other. The gauze layer 2 is sandwiched between the first composite fiber layer 1 and the second composite fiber layer 3, and the opposite surfaces of the gauze layer 2 are bonded to the first composite fiber layer 1 and the second composite fiber layer 3, respectively, to form a composite cloth.

[0029] In summary, it can be seen that the first composite fiber layer 1 and the second composite fiber layer 3 of the composite cloth of the utility model are both formed by multiple layers of cellulose fiber layers cross-arranged to form a composite fiber layer. Compared with a single-layer fiber layer structure, the composite fiber layer formed by multiple layers of cellulose fiber layers cross-arranged to form a composite fiber layer can greatly improve the tensile strength of the composite cloth, thereby avoiding the influence of the tensile strength of the composite cloth being too low to affect its use.

[0030] It should be noted that, in the first composite fiber layer 1 or the second composite fiber layer 3, the overlapping connection and fixation between the multiple cellulose fiber layers are achieved by a spunlace process. Of course, the connection and fixation between the gauze layer 2 and the first composite fiber layer 1 and the second composite fiber layer 3 are also achieved by a spunlace process. Since the spunlace process is a conventional existing technology in the textile field, it will not be explained here.

[0031] In addition, it should be noted that the composite fiber layer formed by the cross-arrangement of multiple cellulose fiber layers can increase the entanglement coefficient between the fibers, thereby greatly improving the tensile strength of the composite cloth.

[0032] In this embodiment, the number of cellulose fiber layers in the second composite fiber layer 3 is the same as the number of cellulose fiber layers in the first composite fiber layer 1. Figure 1 , Figure 2 and Figure 3 The first composite fiber layer 1 and the second composite fiber layer 3 each include three cellulose fiber layers, which are a first cellulose fiber layer 4, a second cellulose fiber layer 41 and a third cellulose fiber layer 42. The second cellulose fiber layer 41 and the third cellulose fiber layer 42 are sequentially stacked on the first cellulose fiber layer 4, and the first cellulose fiber layer 4, the second cellulose fiber layer 41 and the third cellulose fiber layer 42 are intersected with each other, and the two ends of the second cellulose fiber layer 41 are respectively flush with the two sides of the first cellulose fiber layer 4 in the width direction, and the two ends of the third cellulose fiber layer 42 are respectively flush with the opposite sides of the first cellulose fiber layer 4 in the width direction (such as Figure 4 As shown), the tensile strengths of the first composite fiber layer 1 and the second composite fiber layer 3 can be made the same, thereby improving the uniformity of the tensile strength of the composite cloth.

[0033] Another exemplary example is, Figure 5 As shown, the second cellulose fiber layer 41 and the third cellulose fiber layer 42 are connected end to end, so that the connection between the second cellulose fiber layer 41 and the third cellulose fiber layer 42 forms an uninterrupted fiber composite layer, which can further improve the tensile strength of the first composite fiber layer or the second composite fiber layer, thereby further improving the tensile strength of the composite cloth.

[0034] Of course, in other embodiments, the number of cellulose fiber layers in the second composite fiber layer 3 may be different from the number of cellulose fiber layers in the first composite fiber layer 1. For example, referring to Figure 6 , the second composite fiber layer 3 includes two cellulose fiber layers, the two cellulose fiber layers are respectively the first cellulose fiber layer 4 and the second cellulose fiber layer 41, the second cellulose fiber layer 41 and the first cellulose fiber layer 4 are arranged crosswise, and the two ends of the second cellulose fiber layer 41 are respectively flush with the two sides of the first cellulose fiber layer 4 in the width direction; and the first composite fiber layer 1 includes three cellulose fiber layers. In this way, the tensile strength of the composite cloth can also be improved. Therefore, for those skilled in the art, by reasonably changing the number of cellulose fiber layers in the first composite fiber layer 1 and the second composite fiber layer 3, it should also fall within the protection scope of the present utility model.

[0035] In this embodiment, the second cellulose fiber layer 41 and the first cellulose fiber layer 4 intersect at an angle A, and the angle A is 150°, which can increase the area of ​​the second cellulose fiber layer 41 and the first cellulose fiber layer 4 intersecting to a certain extent, and further improve the tensile strength of the composite fabric. Figure 4 , the angle at which the third cellulose fiber layer 42 crosses the first cellulose fiber layer 4 is B, and the angle B is 60°, so that the area at which the third cellulose fiber layer 42 crosses the first cellulose fiber layer 4 is increased, and the tensile strength of the composite cloth is further improved. Of course, in other embodiments, the angle at which the third cellulose fiber layer 42 crosses the first cellulose fiber layer 4 can also be 45°, and the angle at which the third cellulose fiber layer 42 crosses the second cellulose fiber layer 41 can also be 45°, which is not limited here.

[0036] In this embodiment, the gauze layer 2 is medical gauze, so that the composite cloth of the utility model can be applied to the field of facial masks, thereby improving the application scenarios of the composite cloth of the utility model.

[0037] In this embodiment, the cellulose fiber layer is made of one or more regenerated cellulose fibers. The mass ratio of the composite fiber layer composed of one or more regenerated cellulose fibers to the mass ratio of the medical-grade gauze is 1:1.5 to 11:5 (1:1.5 is equivalent to 10 / 15, and 11:5 is equivalent to 33 / 15).

[0038] It should be noted that how to make the cellulose fiber layer from one or more regenerated cellulose fibers belongs to the prior art and will not be described here. The following is a brief description of the production method of the composite cloth of cellulose fiber and gauze of the utility model, which includes the following steps:

[0039] (1) Batching: feeding one or more regenerated cellulose fibers into a cotton box in proportion;

[0040] (2) Opening and mixing: one or more regenerated cellulose fibers are opened and mixed evenly through a series of textile machines;

[0041] (3) Web lamination: one or more regenerated cellulose fibers are evenly mixed by a web laying machine and laid into a cellulose fiber layer of uniform thickness in a dry web forming manner. During the web laying process, multiple cellulose fiber layers are stacked to form a composite fiber layer, and then the composite fiber layer is stacked with a medical-grade gauze layer 2 to form a composite fiber layer-gauze layer 2-composite fiber layer structure or a composite fiber layer-gauze layer 2 structure;

[0042] (4) Prewetting: Through the prewetting treatment, the structure of the first composite fiber layer 1-gauze layer 2-second composite fiber layer 3 or the first composite fiber layer 1-gauze layer 2 is pressed and wetted to improve the subsequent hydroentanglement efficiency;

[0043] (5) Hydroentanglement: The first composite fiber layer 1-gauze layer 2-second composite fiber layer 3 structure or the first composite fiber layer 1-gauze layer 2 structure is hydroentangled through multiple hydroentanglement heads with different hydroentanglement pressures, so that the fibers are mutually entangled and firmly composited, and the entanglement coefficient and the thickness of the composite fabric are controlled by the hydroentanglement pressure;

[0044] (6) Dehydration: The gauze-like composite fabric having the structure of the first composite fiber layer-gauze layer 2-second composite fiber layer or the structure of the first composite fiber layer-gauze layer 2, which are entangled and firmly composited with each other, is dehydrated under negative pressure, dried and shaped to obtain a composite fabric.

[0045] The following is the tensile properties of the tested composite fabric, as shown in Table 1:

[0046] Table 1:

[0047]

[0048] It can be seen from Table 1 that in the process of testing the tensile properties of the composite cloth, the composite cloth formed by three cellulose fiber layers + gauze layer + three cellulose fiber layers has the best tensile properties. That is to say, it can be understood that in the composite cloth formed by the first composite fiber layer 1-gauze layer 2-second composite fiber layer 3, the more cellulose fiber layers of the first composite fiber layer and the second composite fiber layer are, the better the tensile properties of the formed composite cloth are.

[0049] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A composite fabric of cellulose fiber and gauze, characterized in that: It comprises a gauze layer and a first composite fiber layer, wherein the first composite fiber layer is formed by multiple layers of cellulose fiber layers being arranged crosswise with each other, and the gauze layer is arranged in contact with one surface of the first composite fiber layer.

2. The composite fabric of cellulose fiber and gauze according to claim 1, characterized in that: It also includes a second composite fiber layer, which is formed by multiple layers of cellulose fiber layers arranged crosswise with each other. The gauze layer is sandwiched between the first composite fiber layer and the second composite fiber layer, and the relative surfaces of the gauze layer are respectively bonded to the first composite fiber layer and the second composite fiber layer.

3. The composite fabric of cellulose fiber and gauze according to claim 2, characterized in that: The number of cellulose fiber layers in the second composite fiber layer is the same as or different from that in the first composite fiber layer.

4. The composite fabric of cellulose fiber and gauze according to claim 1, characterized in that: The first composite fiber layer includes three cellulose fiber layers, which are a first cellulose fiber layer, a second cellulose fiber layer and a third cellulose fiber layer, the second cellulose fiber layer and the third cellulose fiber layer are stacked on the first cellulose fiber layer in sequence, and the first cellulose fiber layer, the second cellulose fiber layer and the third cellulose fiber layer are crossed with each other, two ends of the second cellulose fiber layer are respectively flush with two sides of the first cellulose fiber layer in the width direction, and two ends of the third cellulose fiber layer are respectively flush with opposite sides of the first cellulose fiber layer in the width direction.

5. The composite fabric of cellulose fiber and gauze according to claim 4, characterized in that: The second cellulose fiber layer and the third cellulose fiber layer are connected end to end, so that the second cellulose fiber layer and the third cellulose fiber layer are connected to form an uninterrupted fiber composite layer.

6. The composite fabric of cellulose fiber and gauze according to claim 2, characterized in that: The second composite fiber layer includes two cellulose fiber layers, which are a first cellulose fiber layer and a second cellulose fiber layer. The second cellulose fiber layer and the first cellulose fiber layer are arranged crosswise with each other, and both ends of the second cellulose fiber layer are flush with both sides of the first cellulose fiber layer in the width direction.

7. The composite fabric of cellulose fiber and gauze according to claim 6, characterized in that: The second cellulose fiber layer crosses the first cellulose fiber layer at an angle of 150°.

8. The composite fabric of cellulose fiber and gauze according to claim 5, characterized in that: The second cellulose fiber layer intersects the first cellulose fiber layer at an angle of 150°, and the third cellulose fiber layer intersects the first cellulose fiber layer at an angle of 60°.

9. The composite fabric of cellulose fiber and gauze according to claim 1, characterized in that: The gauze layer is medical gauze.

10. The composite fabric of cellulose fiber and gauze according to claim 1 or 2, characterized in that: The cellulose fiber layer is made of one or more regenerated cellulose fibers.

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