Elastic interlayer double-sided compounding equipment for non-woven fabric

Abstract

The utility model discloses a non-woven fabric elastic interlayer double-sided compound device which comprises a first collecting roller and a second collecting roller which are sequentially arranged in the conveying direction and are respectively provided with a suction area, the suction area of the first collecting roller and the suction area of the second collecting roller are oppositely arranged, and the suction area of the first collecting roller and the suction area of the second collecting roller are oppositely arranged. A first melt-blowing die head for spraying melt-blowing fibers is arranged on the periphery of the suction area of the first collecting roller, and a second melt-blowing die head for spraying melt-blowing fibers is arranged on the periphery of the suction area of the second collecting roller; a preset elastic middle layer passes through the roller surfaces of the first collecting roller and the second collecting roller in a winding manner at one time, so that melt-blown fibers sprayed by the first melt-blown die head form a first melt-blown surface layer on the lower surface of the elastic middle layer, and melt-blown fibers sprayed by the second melt-blown die head form a second melt-blown surface layer on the upper surface of the elastic middle layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to non -woven production equipment technical field, specifically is a kind of non -woven elastic interlayer double-sided composite equipment. BACKGROUND

[0002] In non-woven industry, non-woven fabric is an important material, and it is popular due to its low cost, high production efficiency, wide application and other advantages. The production technology of non-woven fabric mainly includes chemical bonding, thermal bonding, needle punching, water jetting and other methods, which have advantages and disadvantages and are suitable for different application scenarios.

[0003] However, with the progress of science and technology and the improvement of people's quality of life, traditional non-woven fabric has been difficult to meet market demand in some aspects. Especially in the fields of medical health, clothing and accessories, home decoration and industrial packaging, the performance requirements of non-woven fabric are increasing. For example, in the medical field, non-woven fabric with excellent air permeability and antibacterial performance is needed; in the clothing field, non-woven fabric with good elasticity and comfort is needed; in the industrial packaging field, non-woven fabric with high strength and wear resistance is needed.

[0004] In order to meet these needs, the textile industry is constantly exploring new non-woven production technology and materials. Among them, the technology of combining elastic intermediate layer with melt-blown fiber is concerned. The elastic intermediate layer can provide good elasticity and recovery, while the melt-blown fiber can provide excellent air permeability and filtration performance. By combining the two, non-woven fabric with both elasticity and good air permeability and filtration performance can be produced.

[0005] However, it is not easy to realize the effective combination of elastic intermediate layer and melt-blown fiber. Many technical problems need to be solved, such as how to ensure the uniform deposition of melt-blown fiber on the elastic intermediate layer, how to improve the bonding force of elastic intermediate layer and melt-blown fiber, how to control the temperature and time in the process of combination, etc.

[0006] Therefore, it is particularly important to develop a device that can realize the double-sided melt-blown fiber composite of elastic intermediate layer. Utility model content

[0007] The utility model aims at overcoming the deficiency of prior art, and provides a kind of non-woven elastic interlayer double-sided composite equipment.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a kind of elastic interlayer double-sided composite equipment of nonwoven fabric, including first collection roller and second collection roller being sequentially arranged and all having suction area, wherein, the suction area of first collection roller and the suction area of second collection roller are oppositely arranged, the periphery of the suction area of first collection roller is equipped with first melt-blown die for spraying melt-blown fiber, and the periphery of the suction area of second collection roller is equipped with second melt-blown die for spraying melt-blown fiber;Pre-set elastic intermediate layer is once wound through the roller surface of first collection roller and second collection roller, so that the melt-blown fiber sprayed by first melt-blown die forms first melt-blown surface layer on the lower surface of elastic intermediate layer, and the melt-blown fiber sprayed by second melt-blown die forms second melt-blown surface layer on the upper surface of elastic intermediate layer.

[0009] Further, it further includes a pair of rotary counter-pressing arrangement and is used to pre-embossing treatment of elastic intermediate layer composite press roll, and the composite press roll is located first collection roller upstream position.

[0010] Further, the roller surface of each composite press roll is formed with several convex textures of different heights, wherein, pre-set elastic intermediate layer is sent into two composite press rolls for embossing treatment to form pits of different depths on the upper and lower surfaces of elastic intermediate layer.

[0011] The utility model adopts the scheme, and its beneficial effects are as follows: 1) improve composite efficiency: through the synergies of suction area and melt-blown die, efficient and uniform deposition of melt-blown fiber on elastic intermediate layer is realized, and the composite efficiency is improved.2) enhance structural strength: the pre-embossing treatment of elastic intermediate layer not only increases its surface roughness, but also enhances the mechanical combination with melt-blown fiber by forming pits of different depths, so that the strength of the entire composite structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the schematic view of constant-temperature thermoforming composite equipment.

[0013] Figure 2 It is the composite schematic view of nonwoven fabric.

[0014] Among them, 1-first collection roller, 2-second collection roller, 10-suction area, 11-first melt-blown die, 21-second melt-blown die, 3-composite press roll, 31-convex texture, 100-elastic intermediate layer, 200-first melt-blown surface layer, 300-second melt-blown surface layer. DETAILED DESCRIPTION

[0015] For the convenience of understanding the utility model, the utility model is described more comprehensively below with reference to the drawings. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0016] Referring to the drawings Figure 1 And 2 As shown in the drawings, in the embodiment, an elastic interlayer double-sided composite equipment of non-woven fabric mainly comprises a first collecting roller 1 and a second collecting roller 2 arranged in sequence along the conveying direction, both of which have suction areas 10, and the suction areas 10 are oppositely arranged. The suction areas 10 generate suction force through a negative pressure system, which is used for adsorbing melt-blown fibers and ensuring that the melt-blown fibers are closely attached to the elastic intermediate layer 100. Specifically, the first collecting roller 1 and the second collecting roller 2 of the embodiment can be composed of a fixedly arranged roller inner liner and an outer roller sleeved outside the roller inner liner and rotatable around the central axis of the roller inner liner. The structure and working principle of the collecting roller 22 in the Chinese patent “CN208995688U A melt-blown fabric production device” can be referred to, and details are not described here. Secondly, the roller inner liner can be externally connected with a negative pressure generator (not shown in the drawing). The negative pressure generator is a common element, and its structure and principle are not described here. The suction effect of the negative pressure generator is used to form a suction area in the area corresponding to the roller inner liner, which is used as the suction area 10.

[0017] In the embodiment, the periphery of the suction area 10 of the first collecting roller 1 is provided with a first melt-blown die head 11, and the first melt-blown die head 11 has a plurality of micro nozzles for spraying melt-blown fibers. The periphery of the suction area 10 of the second collecting roller 2 is provided with a second melt-blown die head 21, and the second melt-blown die head 21 also has a plurality of micro nozzles for spraying melt-blown fibers. The nozzle arrangement and jet pressure of the melt-blown die head can be accurately adjusted according to needs to realize uniform distribution of the melt-blown fibers.

[0018] In the present embodiment, the preset elastic intermediate layer 100 (such as polyester fiber, spandex, etc.) is wound through the roll surfaces of the first collecting roller 1 and the second collecting roller 2 at one time, wherein when the elastic intermediate layer 100 passes through the suction area 10 of the roll surface of the first collecting roller 1, the melt-blown fibers sprayed by the first melt-blown die head 11 can be correspondingly adsorbed on the lower surface of the elastic intermediate layer 100 to form a first melt-blown surface layer 200, and at this time, the roll surface of the first collecting roller 1 is correspondingly in contact with the upper surface of the elastic intermediate layer 100. Subsequently, the elastic intermediate layer 100 is transferred from the first collecting roller 1 to the second collecting roller 2, and when the elastic intermediate layer 100 passes through the suction area 10 of the roll surface of the second collecting roller 2, the melt-blown fibers sprayed by the second melt-blown die head 21 can be correspondingly adsorbed on the upper surface of the elastic intermediate layer 100 to form a second melt-blown surface layer 300, and at this time, the roll surface of the second collecting roller 2 is correspondingly in contact with the first melt-blown surface layer 200. Thus, after passing through the first collecting roller 1 and the second collecting roller 2, the elastic intermediate layer 100 correspondingly forms the first melt-blown surface layer 200 and the second melt-blown surface layer 300 on the upper surface and the lower surface.

[0019] In the present embodiment, the preset elastic intermediate layer 100 is wound through the roll surfaces of the first collecting roller 1 and the second collecting roller 2 at one time. Before this, the elastic intermediate layer 100 is subjected to pre-embossing treatment by a pair of rotating and pressing composite pressure rollers 3. Specifically, the present embodiment further includes a pair of rotating and pressing composite pressure rollers 3 for pre-embossing treatment of the elastic intermediate layer 100, and the composite pressure rollers 3 are located at a position upstream of the first collecting roller 1, wherein each roll surface of the composite pressure rollers 3 is formed with a plurality of convex textures 31 with different heights, and the preset elastic intermediate layer 100 is fed between the two composite pressure rollers 3 for embossing treatment to form pits with different depths on the upper and lower surfaces of the elastic intermediate layer 100. The pre-embossing treatment not only increases the surface roughness of the elastic intermediate layer 100, but also improves the bonding force between the elastic intermediate layer 100 and the melt-blown fibers, so that the first melt-blown surface layer 200 and the second melt-blown surface layer 300 can be more firmly combined on the elastic intermediate layer 100 and are not easy to fall off.

[0020] In the present embodiment, the convex textures 31 formed on the roll surface of the composite pressure roller 3 can be rhombic, circular, triangular, etc., which are not specifically limited here.

[0021] In summary, the non-woven fabric obtained by the above method has excellent elasticity, strength and air permeability, and is suitable for various high-end application fields such as medical protective clothing, sportswear, automobile interior decoration, etc.

[0022] The above-described embodiments are only preferred embodiments of the present application, and do not limit the present application in any form. Any skilled person in the art, without departing from the technical scheme of the present application, can make more possible changes, modifications and refinements to the technical scheme of the present application by using the disclosed technical content, or modifications, which are equivalent embodiments of the present application. Therefore, any equivalent changes within the technical scheme of the present application, according to the idea of the present application, should be covered within the protection scope of the present application.

Claims

1. An elastic sandwich double-faced composite apparatus of nonwoven fabric, characterized by: The application relates to a melt-blown fabric production device, which comprises a first collecting roller (1) and a second collecting roller (2) arranged in sequence along a conveying direction and each having a suction area (10), wherein the suction area (10) of the first collecting roller (1) is oppositely arranged with the suction area (10) of the second collecting roller (2), the periphery of the suction area (10) of the first collecting roller (1) is provided with a first melt-blown die head (11) for spraying melt-blown fibers, and the periphery of the suction area (10) of the second collecting roller (2) is provided with a second melt-blown die head (21) for spraying melt-blown fibers; a preset elastic intermediate layer (100) is wound through the roller faces of the first collecting roller (1) and the second collecting roller (2) once, so that the melt-blown fibers sprayed by the first melt-blown die head (11) form a first melt-blown surface layer (200) on the lower surface of the elastic intermediate layer (100), and the melt-blown fibers sprayed by the second melt-blown die head (21) form a second melt-blown surface layer (300) on the upper surface of the elastic intermediate layer (100).

2. The elastic sandwiching double-faced composite apparatus for nonwoven fabric according to claim 1, characterized in that: The device further comprises a pair of rotary counter-pressing composite pressure rollers (3) for pre-embossing the elastic intermediate layer (100), and the composite pressure rollers (3) are located at a position upstream of the first collecting roller (1).

3. The elastic sandwiching double-faced composite apparatus for nonwoven fabric according to claim 2, characterized in that: The roller faces of each of the composite pressure rollers (3) are formed with a plurality of convex textures (31) with different heights, wherein the preset elastic intermediate layer (100) is sent into the space between the two composite pressure rollers (3) for embossing treatment so as to form pits with different depths on the upper and lower surfaces of the elastic intermediate layer (100).

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