Washable flame-retardant non-woven fabric for sofa lining

Abstract

The utility model relates to the field of non-woven fabrics, and discloses a washable flame-retardant non-woven fabric for a sofa lining, which comprises a base fabric layer and a pleating layer, and the base fabric layer comprises a plurality of cross lapping layers which are connected in a needling and entangling manner; the pleating layer comprises a plurality of pleating parts and inter-pleat parts connected between the adjacent pleating parts; the pleating parts and the inter-pleat parts are attached to each other, the pleating parts, the inter-pleat parts and the base cloth layer are connected in a needling, entangling and overlapping mode, and the pleating parts are sequentially arranged in the first extending direction of the base cloth layer. The base cloth layer and the pleated layer are laminated and needled to form a first composite layer with internal fibers having different fiber orientation angles. Compared with a composite structure of the base cloth layer and the pleated layer adopting the same lapping mode, the tensile property of the first composite layer is obviously improved, and the size change rate of the non-woven fabric after water washing is reduced. The thickness of the pleating part area of the first composite layer is larger than that of the inter-pleat part area, and the tensile property of the first composite layer is further improved through the local enhancement effect of the pleating part area.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of non - woven fabrics, concretely relates to a sofa lining is with water -resistant wash flame -retardant non -woven fabric. BACKGROUND

[0002] Non - woven fabric is a kind of fabric formed without spinning and weaving, essentially it is that short fiber or filament of weaving is oriented or randomly arranged, forms web structure, then is consolidated by mechanical, thermal bonding or chemical method.

[0003] The production mode of non - woven fabric determines that the combination between its fibers is not as tight as woven fabric, thus non - woven fabric is more easily damaged by mechanical force when washing, and the specific performance is that the size change rate of non - woven fabric after washing is large. UTILITY MODEL CONTENT

[0004] In view of the above prior art, the technical problem to be solved by the utility model is to provide a sofa lining is with water -resistant wash flame -retardant non -woven fabric with compact structure.

[0005] To solve the above technical problem, the technical scheme of the utility model is as follows: a sofa lining is with water -resistant wash flame -retardant non -woven fabric, including base cloth layer and pleat layer, the base cloth layer includes a plurality of cross-laid layers connected by needle punching and entangling;The pleat layer includes a plurality of pleat portions and a pleat portion connected between adjacent pleat portions;The pleat portion and the pleat portion are arranged to be mutually attached, and the pleat portion and the pleat portion are connected by needle punching and entangling, and the pleat portion is arranged along the first extension direction of the base cloth layer.

[0006] Preferably, the pleat portion is a parallel knife pleat, the pleat portion has a pleat peak fold edge and a pleat valley fold edge, a plurality of pleat peak fold edges of the pleat portion are arranged at equal intervals, the pleat valley fold edge of the pleat portion is connected with the pleat portion, the pleat peak fold edge and the pleat valley fold edge are parallel to each other, the distance between the pleat peak fold edge and the pleat valley fold edge is L1, the first extension direction width of the pleat portion is L2, and L1 is greater than L2.

[0007] Preferably, the adjacent knife pleats in the thickness direction of the base cloth layer are hot-pressed.

[0008] Preferably, the knife pleat has a hot-pressing area, the hot-pressing area is provided with a breathable through hole, and the breathable through hole penetrates through two adjacent knife pleats.

[0009] Preferably, the pleat layer includes a first pleat layer and a second pleat layer, and the knife pleats of the first pleat layer and the second pleat layer are arranged in perpendicular directions.

[0010] Preferably, the first pleat layer, the base cloth layer and the second pleat layer are stacked in sequence.

[0011] Preferably, the first surface layer, the first crimp layer, the base cloth layer, the second crimp layer and the second surface layer are stacked in sequence and connected by needle punching.

[0012] Preferably, the crimp layer is a flame-retardant layer.

[0013] Preferably, the first surface layer and the first crimp layer are flame-retardant layers.

[0014] Preferably, the material of the base cloth layer is fine denier polyester fiber, and the material of the flame-retardant layer is modified viscose fiber.

[0015] The advantages and beneficial effects of the present application are as follows:

[0016] The base cloth layer and the crimp layer are combined and needle punched to form a first composite layer with internal fibers having different fiber orientation angles. Compared with the composite structure of the base cloth layer and the crimp layer with the same laying method, the tensile resistance of the first composite layer is significantly improved, which is beneficial to reduce the dimensional change rate of the non-woven fabric after washing.

[0017] The thickness of the crimped part region of the first composite layer is greater than that of the inter-crease part region, and the local reinforcement of the crimped part region further improves the tensile resistance of the first composite layer. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the sofa lining water-washing-resistant flame-retardant non-woven fabric embodiment 1 of the present application;

[0019] Figure 2 is an enlarged view of A part of Figure 1

[0020] Figure 3 is a structural schematic view of the sofa lining water-washing-resistant flame-retardant non-woven fabric embodiment 2 of the present application;

[0021] Figure 4 is an enlarged view of B part of Figure 3

[0022] Figure 5 is a structural schematic view of the sofa lining water-washing-resistant flame-retardant non-woven fabric embodiment 4 of the present application;

[0023] In the figure: 1, base cloth layer; 2, crimp layer; 201, crimped part; 2011, crease peak folding edge; 2012, crease valley folding edge; 202, inter-crease part; 3, air permeation through hole. DETAILED DESCRIPTION

[0024] The specific implementation of the present application will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the protection scope of the present application.​​

[0025] Example 1

[0026] As shown in Figure 1 and Figure 2 , the sofa lining washable flame-retardant nonwoven fabric of Example 1 comprises a base cloth layer 1 and a pleated layer 2, the base cloth layer 1 comprises a plurality of cross-laid layers connected by needle punching; the pleated layer 2 comprises a plurality of pleated parts 201 and inter-pleated parts 202 connected between adjacent pleated parts 201; the pleated parts 201 and the inter-pleated parts 202 are arranged in close contact with each other, and the pleated parts 201, the inter-pleated parts 202 and the base cloth layer 1 are connected by needle punching, and the pleated parts 201 are arranged in sequence along the first extension direction of the base cloth layer.

[0027] Specifically, the sofa lining washable flame-retardant nonwoven fabric is a multi-layer nonwoven fabric, and the preparation process of the base cloth layer 1 comprises cross-laying and needle punching in sequence, and the output direction of the cross-laying curtain of the base cloth layer 1 is the first extension direction of the base cloth layer. The preparation process of the pleated layer 2 comprises parallel laying.

[0028] The fiber orientation angle is used to represent the orientation state of the fiber in the web, and the fiber orientation angle is defined as the angle between the fiber axis and the output direction of the cross-laying curtain. The fiber orientation angle of most fibers in the base cloth layer 1 is greater than 0° and less than 90°, and the fiber orientation angle of most fibers in the pleated layer 2 is 0° or 90°. After the base cloth layer 1 and the pleated layer 2 are laminated and needled, a first composite layer with different fiber orientation angles is formed. Compared with the composite structure of the base cloth layer and the pleated layer with the same laying method in the vertical direction of the thickness direction of the first composite layer, the tensile resistance of the first composite layer is obviously improved, which is beneficial to reduce the dimensional change rate of the nonwoven fabric after washing.

[0029] The thickness of the pleated part region of the first composite layer is greater than that of the inter-pleated part region, and the local reinforcement of the pleated part region further improves the tensile resistance of the first composite layer.

[0030] The manufacturing process of the sofa lining washable flame-retardant nonwoven fabric:

[0031] First, the first fiber is made into a first fiber web by cross-laying, and the first fiber web is needled to form a first single-layer fiber cloth.

[0032] Then, the second fiber is made into a second fiber web by parallel laying, and the second fiber web is needled to form a second single-layer fiber cloth, and the second single-layer fiber cloth is pleated and then needled to form a single-layer pleated cloth.

[0033] Next, the first single-layer fiber cloth and the single-layer pleated cloth are laminated and needled to form a first composite nonwoven fabric.

[0034] Finally, the first composite nonwoven fabric and other single-layer nonwoven fabrics are laminated and needled to form a sofa lining washable flame-retardant nonwoven fabric.

[0035] Example 2

[0036] like Figure 3 and Figure 4 As shown, the sofa lining of Example 2 uses a water-resistant and flame-retardant nonwoven fabric based on Example 1, except that the pleated portion 201 is a parallel knife pleat, the pleated portion 201 has a pleat peak fold edge 2011, the pleat peak fold edges 2011 of multiple pleated portions 201 are equally spaced, the pleat valley fold edge 2012 of the pleated portion 201 is connected to the interpleated portion 202, the pleat peak fold edge 2011 and the pleat valley fold edge 2012 are parallel to each other, the distance between the pleat peak fold edge 2011 and the pleat valley fold edge 2012 is L1, and the width of the interpleated portion 202 in the first extending direction is L2, where L1 is greater than L2.

[0037] Specifically, parallel pleats are easier to make, and regular pleats make it easier to precisely control the needle penetration depth and density, avoiding problems such as insufficient fiber penetration or excessive fiber damage caused by irregular pleats.

[0038] The fold peak 2011 of the knife fold is the outermost edge of the knife fold, and it is the most obvious fold edge of the knife fold; the fold valley 2012 of the knife fold is the bottom edge of the knife fold, and it is the edge of the inner recess that forms the knife fold.

[0039] If L1 is greater than L2 and the second single-layer fiber fabric is pleated and then needle-punched to form a single-layer pleated fabric, then the thickest part of the single-layer pleated fabric is formed by needle-punching 5 layers of the second single-layer fiber fabric. The thinnest part of the single-layer pleated fabric is formed by needle-punching 3 layers of the second single-layer fiber fabric. Taking the thickest part of the pleated fabric as an example, the fibers within each of the 5 layers of the second single-layer fiber fabric enter into other layers and become entangled with the fibers in other layers, thus enhancing the tensile strength of the thickest part of the single-layer pleated fabric.

[0040] Taking a case where the fiber orientation angle of most fibers in the pleated layer 2 is 0° as an example, the pleat peak 2011 of the knife pleat is perpendicular to the first extension direction of the base fabric layer. Perpendicular to the thickness direction of the base fabric layer 1, the first composite layer has better tensile strength in the first extension direction of the base fabric layer 1; while the thickness of the first composite layer is larger at the corresponding part of the pleated portion 201, and the tensile strength of the first composite layer is improved in the first extension direction perpendicular to the thickness direction of the base fabric layer 1.

[0041] Example 3

[0042] The sofa lining of Example 3 uses a water-resistant and flame-retardant nonwoven fabric based on Example 2, except that the adjacent pleats in the thickness direction of the base fabric layer are heat-pressed together.

[0043] Specifically, the second single-layer fiber cloth is needle punched after being pressed and pleated to form a single-layer pressed and pleated cloth, and the thickest part of the single-layer pressed and pleated cloth of Example 2 is formed by 5 layers of the second single-layer fiber cloth, and the thinnest part is formed by 3 layers of the second single-layer fiber cloth. After the adjacent knife pleats are hot-pressed and connected, the 5 layers of the second single-layer fiber cloth at the thickest part of the single-layer pressed and pleated cloth are not only needle-punched but also hot-pressed and connected. The pressed and pleated cloth itself is more compact.

[0044] In another preferred embodiment, the pressed and pleated layer 2 comprises a first pressed and pleated layer and a second pressed and pleated layer, and the knife pleat arrangement directions of the first pressed and pleated layer and the second pressed and pleated layer are perpendicular.

[0045] Specifically, the knife pleat arrangement directions of the first pressed and pleated layer and the second pressed and pleated layer are perpendicular, and the fiber orientation angles of most of the fibers in the pressed and pleated layer 2 are 0° and 90°. In the thickness direction of the base cloth layer 1, the tensile performance of the first composite layer in the first extension direction perpendicular to the base cloth layer 1 is improved.

[0046] Further, the first pressed and pleated layer, the base cloth layer 1, and the second pressed and pleated layer are sequentially stacked.

[0047] After the first pressed and pleated layer is prepared, the first pressed and pleated layer is stacked with the base cloth layer 1 and then needle-punched to connect, and then the first pressed and pleated layer, the base cloth layer 1, and the second pressed and pleated layer are sequentially stacked and then needle-punched to connect. Among them, part of the fibers of the first pressed and pleated layer and the fibers of the second pressed and pleated layer are intertwined with each other, the first pressed and pleated layer and the second pressed and pleated layer are composed of the same fibers, and the fibers of the two pressed and pleated layers are relatively low in difficulty to enter the other layer.

[0048] Further, it further comprises a first surface layer and a second surface layer, and the first surface layer, the first pressed and pleated layer, the base cloth layer 1, the second pressed and pleated layer, and the second surface layer are sequentially stacked and needle-punched to connect. The pressed and pleated layer is a flame-retardant layer.

[0049] At this time, the first surface layer and the second surface layer constitute the surface of the non-woven fabric, and the first pressed and pleated layer and the second pressed and pleated layer are respectively arranged in close contact with the first surface layer and the second surface layer, and both sides of the non-woven fabric have a flame-retardant effect.

[0050] Further, the first surface layer and the first pressed and pleated layer are flame-retardant layers.

[0051] At this time, taking the base cloth layer 1 as a reference surface, the non-woven fabric has a single-sided flame-retardant effect, and the non-woven fabric is used for a sofa lining, and the non-woven fabric is designed to be single-sided flame-retardant to be more suitable for the application scenario.

[0052] Example 4

[0053] As shown in Figure 4 the sofa lining flame-retardant non-woven fabric of Example 4 is based on Example 3, and the difference is that the knife pleats have a hot-pressing area, the hot-pressing area is provided with a breathable through hole 3, and the breathable through hole 3 penetrates through two adjacent knife pleats.

[0054] The thickest part of the single-layered pressure-folding fabric is formed by 5 layers of the second single-layered fiber fabric, so that the thickest part of the single-layered pressure-folding fabric has poor air permeability.

[0055] Preferably, the base fabric layer is made of fine denier polyester fiber, and the fire-retardant layer is made of modified viscose fiber.

[0056] The above is only the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A water-washable, flame-retardant nonwoven fabric for use as a sofa lining, characterized by comprising a fibrous web of a water-washable, flame-retardant fiber, and a water-repellent agent. The application relates to a base cloth layer, a pressing fold layer and a first surface layer and a second surface layer. The base cloth layer comprises a plurality of cross-laid layers connected by needle punching and entanglement; The pressing fold layer comprises a plurality of pressing folds and interfold parts connected between adjacent pressing folds; The pressing folds and the interfold parts are arranged in mutual adhesion, the pressing folds and the interfold parts are connected with the base cloth layer by needle punching and entanglement, and the pressing folds are arranged in sequence along a first extension direction of the base cloth layer.

2. The water-washable, flame-retardant nonwoven fabric for use in a sofa inner liner according to claim 1, characterized by, The pressing folds are mutually parallel knife folds, the pressing folds have fold peak edges and fold valley edges, the fold peak edges of the plurality of pressing folds are arranged at equal intervals, the fold valley edges of the pressing folds are connected with the interfold parts, the fold peak edges and the fold valley edges are mutually parallel, the distance between the fold peak edges and the fold valley edges is L1, the first extension direction width of the interfold parts is L2, and L1 is greater than L2.

3. The water-washable, flame-retardant nonwoven fabric for use in a sofa inner liner according to claim 2, characterized by, The adjacent knife folds in the thickness direction of the base cloth layer are hot-pressed and connected.

4. The water-washable, flame-retardant nonwoven fabric for use in a sofa inner liner according to claim 3, characterized by, The knife folds have hot-pressing areas, the hot-pressing areas are provided with air-permeable through holes, and the air-permeable through holes penetrate through two adjacent knife folds.

5. The water-washable, flame-retardant nonwoven fabric for use in a sofa inner liner according to claim 2, wherein The pressing fold layer comprises a first pressing fold layer and a second pressing fold layer, and the arrangement directions of the knife folds of the first pressing fold layer and the second pressing fold layer are perpendicular.

6. The water-washable, flame-retardant nonwoven fabric for use in a sofa liner according to claim 5, wherein The first pressing fold layer, the base cloth layer and the second pressing fold layer are sequentially stacked.

7. The water-washable, flame-retardant nonwoven fabric for use in a sofa inner liner according to claim 6, characterized by, The first surface layer, the first pressing fold layer, the base cloth layer, the second pressing fold layer and the second surface layer are sequentially stacked and connected by needle punching.

8. The water-washable, flame-retardant nonwoven fabric for use in a sofa liner according to claim 1, wherein The pressing fold layer is a flame-retardant layer.

9. The water-washable, flame-retardant nonwoven fabric for use in a sofa inner liner according to claim 7, wherein The first surface layer and the first pressing fold layer are flame-retardant layers.

10. The water-washable, flame-retardant nonwoven fabric for use in a sofa inner liner according to claim 8 or 9, characterized by, The material of the base cloth layer is fine denier polyester fiber, and the material of the flame-retardant layer is modified viscose fiber.

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