Elastic non-woven fabric

Abstract

The utility model relates to an elastic non-woven fabric which comprises a first fiber net and a second fiber net, the second fiber net is located above the first fiber net, the first fiber net is made of thermoplastic fibers and elastic fibers, and the thermoplastic fibers and the elastic fibers are arranged in a crossed mode. The second fiber net is made of thermoplastic fibers processed through a hot roller, the average deviation SMD of the roughness of the upper surface of the second fiber net is not larger than 3.0 micrometers, and the first fiber net and the second fiber net are combined through a hot air technology or ultrasonic welding to form an integrated structure. The elastic fibers are added into the first fiber web to form a cross arrangement structure of the elastic fibers and the thermoplastic fibers to provide elastic support for the fiber cloth, so that the prepared non-woven fabric is good in filling power, has gravity vertical elasticity and horizontal tensile elasticity, and realizes three-dimensional elasticity; meanwhile, the upper layer of the second fiber net serves as a skin-friendly layer and is low in roughness, soft, smooth and clean, and the skin-friendly effect of the fabric is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sanitary product technical field, concretely is a kind of elastic nonwoven fabric. BACKGROUND

[0002] The elastic nonwoven fabric on current market is usually polyurethane elastic silk or polyurethane elastic film and nonwoven fabric composite, or is the spunbond nonwoven fabric of adding elastic master batch, and this kind of elastic nonwoven fabric is generally with good horizontal tensile elasticity in transverse direction, longitudinal direction, and has wide application in sanitary towel, paper diaper and other sanitary material field.But the elasticity of this kind of elastic nonwoven fabric is poor in the vertical direction of gravity, leading to poor fit with human body use site, and poor wearing or using experience. SUMMARY

[0003] The utility model aims at providing a kind of elastic nonwoven fabric to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] An elastic nonwoven fabric, comprising a first fiber web and a second fiber web, the second fiber web is located above the first fiber web, the first fiber web uses thermoplastic fiber and elastic fiber, the thermoplastic fiber and the elastic fiber are cross arranged, the second fiber web uses thermoplastic fiber treated by calender roll, the average deviation SMD of the upper surface roughness of the second fiber web is not more than 3.0 μm, and the first fiber web and the second fiber web form an integrated structure after being compounded by hot air process or ultrasonic welding.

[0006] In a possible implementation, the lower surface roughness of the first fiber web is greater than the upper surface roughness of the second fiber web.

[0007] In a possible implementation, the thermoplastic fiber is one or more of polyester, acrylic, nylon, vinylon, spandex, polypropylene, polylactic acid fiber and ES fiber.

[0008] The elastic fiber is one or both of polyester elastic fiber and polyolefin elastic fiber.

[0009] In a possible implementation, the grammage of the first fiber web is 10 g / m 2 -40 g / m 2 .

[0010] In a possible implementation, the grammage of the second fiber web is 5 g / m 2 -25 g / m 2 .

[0011] In one possible implementation, the elastic non-woven fabric has a grammage of 15g / m 2 -65g / m 2 .

[0012] Compared with the prior art, the elastic non-woven fabric has the following advantages: by adding elastic filaments in the first fiber web to form a structure in which the elastic filaments and the thermoplastic filaments are cross arranged to provide elastic support for the fiber cloth, the prepared non-woven fabric has good bulkiness, gravity vertical elasticity and horizontal tensile elasticity, and three-dimensional elasticity is achieved; meanwhile, the upper surface layer of the second fiber web serves as a skin-friendly layer, has low roughness, is soft and smooth, and enhances the skin-friendly effect of the fabric. The elastic non-woven fabric is used as a surface layer of a sanitary material product, is attached to a human body use part, has no binding feeling, and has good wearing or using effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole schematic view of the utility model. DETAILED DESCRIPTION

[0014] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows by combining with the drawings and preferred embodiments.

[0015] An elastic non-woven fabric comprises a first fiber web 1 and a second fiber web 2, the second fiber web 2 is located above the first fiber web 1, the first fiber web 1 adopts thermoplastic filaments 3 and elastic filaments 4, the thermoplastic filaments 3 and the elastic filaments 4 are cross arranged, the second fiber web 2 adopts thermoplastic filaments 3 treated by a calender roll, the average deviation SMD of the upper surface roughness of the second fiber web 2 is not greater than 3.0 microns, and the first fiber web 1 and the second fiber web 2 are combined into an integrated structure by a hot air process or ultrasonic welding. In the utility model, the roughness of the lower surface of the first fiber web 1 is not particularly limited, because the lower surface of the first fiber web 1 does not contact the human skin, and the first fiber web 1 provides elastic support. It is a preferred scheme that the roughness of the lower surface of the first fiber web 1 is greater than the roughness of the upper surface of the second fiber web 2. The different roughnesses of the upper and lower surfaces of the finished non-woven fabric can make it easier to distinguish during use.

[0016] The surface roughness of the non-woven fabric can be measured by FZ / T 01115-2012 "Test method for fabric surface roughness performance" to measure the surface of the prepared elastic non-woven fabric.

[0017] In the utility model, the thermoplastic fiber 3 in the first fiber web 1 and the second fiber web 2 can be one or more of polyester, acrylic, nylon, vinylon, spandex, polypropylene, polylactic acid fiber and ES fiber; the thermoplastic fiber 3 components of the two fiber webs can be same or different. The elastic fiber 4 used in the first fiber web 1 should be one or both of polyester elastic fiber and polyolefin elastic fiber. The two kinds of elastic fiber 4 can better cooperate with the thermoplastic fiber 3 and improve the elasticity of the non-woven fabric.

[0018] Further, the first fiber web 1 has a grammage of 10g / m 2 -40g / m 2 The second fiber web 2 has a grammage of 5g / m 2 -25g / m 2 The entire elastic non-woven fabric has a grammage of 15g / m 2 -65g / m 2 The thermoplastic fiber 3 in the first fiber web 1 accounts for 40% to 80% of the mass of the entire first fiber web 1, and the elastic fiber 4 accounts for 20% to 60%.

[0019] In the utility model, unless otherwise specified and limited, the terms "mount", "set", "connect", "fix", "screw" and other terms should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specified, the above-mentioned terms in the utility model can be understood according to the specific meaning of the above-mentioned terms in the utility model by the person skilled in the art according to the specific situation.

[0020] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above with the preferred embodiment, however, it is not used to limit the utility model, any person skilled in the art, without departing from the technical scheme range of the utility model, can make some changes or modifications for equivalent embodiments of equivalent changes by using the disclosed technical content, as long as it does not depart from the technical scheme content of the utility model, according to the technical essence of the utility model, any indirect modification, equivalent change and modification of the above-mentioned embodiments are still within the scope of the technical scheme of the utility model.

Claims

1. An elastic nonwoven fabric, characterized by, The first fiber web (1) and the second fiber web (2) are formed into an integrated structure by hot air process or ultrasonic welding after the first fiber web (1) and the second fiber web (2) are compounded.

2. The elastic nonwoven fabric according to claim 1, wherein The lower surface roughness of the first fiber web (1) is greater than the upper surface roughness of the second fiber web (2).

3. The elastic nonwoven fabric according to claim 1, wherein The first fiber web (1) has a grammage of 10 g / m 2 - 40 g / m 2。 4. The elastic nonwoven fabric according to claim 1, wherein The second fiber web (2) has a grammage of 5 g / m 2 - 25 g / m 2。 5. The elastic nonwoven fabric according to claim 1, wherein The elastic nonwoven fabric has a grammage of 15 g / m 2 - 65 g / m 2 .

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