CN2786172Y

CN2786172Y - Needle-punched nonwoven fabric

Info

Publication number: CN2786172Y
Application number: CNU2005201018583U
Authority: CN
Inventors: 朱可耐; 王海
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-26
Filing date: 2005-04-26
Publication date: 2006-06-07
Anticipated expiration: 2015-04-26

Abstract

The utility model relates to needle-punched nonwoven fabric. Warp direction strength and diatropic direction strength are increased, and especially the diatropic direction strength is increased obviously, therefore the needle-punched nonwoven fabric can be solely used as the inside fabric for the furniture. The raw materials can be saved, the cost can be decreased, and the thickness of the nonwoven fabric can be changed as required. The utility model has the technical scheme that a warp direction fibre layer of the needle-punched nonwoven fabric is formed from warp direction fibre which is arranged in a warp direction, and needle punched holes which puncture the upper surface and the lower surface are distributed on the warp direction fibre layer. The needle-punched nonwoven fabric is characterized in that the upper side of the warp direction fibre layer is provided with a diatropic direction fibre layer which is formed from diatropic direction fibre arranged in a diatropic direction, and the warp direction fibre and the diatropic direction fibre are overlapped crosswise. Needle-punched holes which are uniformly distributed on the upper surface of the diatropic direction fibre layer penetrate between the upper surface of the diatropic direction fibre layer and the bottom surface of the warp direction fibre layer, and irregular fabric bonding points in random distribution are distributed on the entire needle-punched nonwoven fibre from the surface to the inner part. The utility model can be used as the inside fabric for the furniture and the base fabric of the shoe leather.

Description

Needle punched non-woven fabrics

Technical field

The utility model relates to textiles, especially a kind of needle punched non-woven fabrics.Be applicable to furniture lining, footwear leather base fabric, or the like.

Background technology

Present most of furniture lining is a Woven Fabrics, but has burr after cutting its year, also need bind off before the use or the hot melt processing.Existing needle punched non-woven fabrics, in right carrying cut the no burr in back, but its fiber is the warp-wise arrangement, latitudinal strength is very poor, thereby can not be used alone as the furniture lining.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of warp-wise intensity and latitudinal strength that raising is all arranged, especially latitudinal strength is significantly increased, thereby can be used alone as the needle punched non-woven fabrics of furniture lining, and can save material, reduce cost, change the thickness of nonwoven fabric as required.

The technical scheme that the utility model adopted is: the warp fiber that needle punched non-woven fabrics is arranged by warp-wise is formed warp fiber layers, the pinprick of distribution transfixation upper and lower surface on it, it is characterized in that on warp fiber layers, also being covered with the weft fiber layer of forming by the weft fiber of broadwise arrangement, warp fiber and weft fiber juxtaposition; The pinprick that is uniformly distributed in weft fiber layer upper surface is through between weft fiber layer upper surface and the warp fiber layers bottom surface; Whole again needle punched non-woven fabrics is distributed with the fiber bonding point of irregular random distribution from the surface to inside.

The technical scheme that another that the utility model adopted belongs to a total inventive concept is: the warp fiber that needle punched non-woven fabrics is arranged by warp-wise is formed warp fiber layers, the pinprick of the perverse logical upper and lower surface that distributes on it, it is characterized in that this needle punched non-woven fabrics is made of three layers of fibrage, bottom is a warp fiber layers, the middle level is by tiltedly and with warp-wise being the left oblique weft of acute angle arrangement to fibrous left, the upper strata is by tiltedly and with warp-wise being the right oblique weft of same acute angle arrangement to fibrous to the right, warp fiber, left side oblique weft is to fiber, and right oblique weft is to the fiber juxtaposition; The pinprick that is uniformly distributed in the upper strata upper surface is through between upper strata upper surface and the warp fiber layers bottom surface; Whole again needle punched non-woven fabrics is distributed with the fiber bonding point of irregular random distribution from the surface to inside.

Described left oblique weft is 20 °-45 ° to fiber and right oblique weft to the acute angle magnitude range of fiber and warp-wise.

The beneficial effects of the utility model are: its warp-wise intensity of nonwoven fabric and the latitudinal strength that weave with this weave all have raising, especially latitudinal strength is significantly increased, reached the intensity of general Woven Fabrics, can be used alone as furniture lining or footwear leather base fabric, thereby saved raw material, reduced production cost.Adopt this weave can easily change the thickness of nonwoven fabric again.

Description of drawings

Fig. 1 is the utility model embodiment 1 warp cross section partial structurtes schematic diagram;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the utility model embodiment 2 warp cross section partial structurtes schematic diagrames;

Fig. 4 is the vertical view of Fig. 3.

The specific embodiment

Embodiment 1, and as shown in Figure 1 and Figure 2, present embodiment is made of warp fiber layers 1 and the weft fiber layer 2 that is layered on above it, and wherein warp fiber layers 1 is made up of the warp fiber 1a of many warp-wises arrangements, and its thickness is 0.3 millimeter; Weft fiber layer 2 then is made up of the weft fiber 2a that many broadwises are arranged, and its thickness is 0.3 millimeter.Warp fiber 1a and weft fiber 2a juxtaposition.Be evenly distributed on weft fiber layer 2 upper surface, density is that a collection of pinprick 5 of 500-700 hole/centimetres 2 is through between weft fiber layer 2 upper surface and warp fiber layers 1 bottom surface.Warp fiber 1a and weft fiber 2a all adopt the fiber of 65 mm lengths, and fiber is interspersed mutually up and down during with raising acupuncture tangles degree, thereby improves the intensity of this needle punched non-woven fabrics.In addition, owing to all be mixed with a certain proportion of low melting point chemical fibre among warp fiber 1a and the weft fiber 2a, as polypropylene fibre or 4080 fibers, after hot rolling pressing processing, fiber forms the fiber bonding point 4 of many irregular random distribution around low-melting fiber contraction, fusing and the bonding, and above-mentioned fiber bonding point 4 is present in the surperficial and inner of whole needle punched non-woven fabrics.As long as adjust the ratio of low-melting fiber, just can adjust the density of fiber bonding point 4.

Embodiment 2, and as shown in Figure 3, Figure 4, present embodiment is made of three layers of fibrage, and wherein bottom is a warp fiber layers 1, and its thickness is 0.2 millimeter, and the warp fiber 1a that is arranged by many warp-wises forms.Middle level 2 '

By many left tiltedly and be the left oblique weft that acute angle arranges with warp-wise and form to fiber 2 ' a, its thickness is 0.2 millimeter.Upper strata 3 by many right sides tiltedly and be the right oblique weft that same acute angle arranges with warp-wise and form to fiber 3a, its thickness is 0.2 millimeter.Above-mentioned acute angle magnitude range be 20 °-45 ° comparatively suitable.Warp fiber 1a, left oblique weft to fiber 2 ' a, right oblique weft to fiber 3a juxtaposition.That is to say, with middle level 2 ' and the synergy on upper strata 3 replace weft fiber layer 2 among the embodiment 1.A collection of distribution density be the pinprick 5 of 500-700 hole/centimetres 2 through between upper strata 3 upper surfaces and bottom warp fiber layers 1 bottom surface, and pinprick 5 is evenly distributed in the whole surface on upper strata 3.In addition, the same with embodiment 1, warp fiber 1a, left oblique weft all are mixed with a certain proportion of low-melting fiber to fiber 2 ' a, right oblique weft in fiber 3a, after processing is plated in hot rolling, and whole needle punched non-woven fabrics surface and the inner fiber bonding point 4 that many irregular random distribution are all arranged.Adjust the ratio of low-melting fiber, just can adjust the density of chemical fibre bonding point 4.

In addition, also can change three layers of fibrolaminar ordering, as the middle level being changed into right oblique weft to fiber, and the upper strata changes left oblique weft into to fiber, even the fiber number of plies of juxtaposition can also be increased again, as 4 layers, 5 layers, 6 layers even more.

Therefore, the warp fiber 1a of embodiment 1 and weft fiber 2a are " well " font juxtaposition, and among the embodiment 2 warp fiber 1a, left oblique weft to fiber 2 ' a, right oblique weft to fiber 3a juxtaposition, whole needle punched non-woven fabrics has the fiber bonding point 4 of many irregular random distribution again from the surface to inside, fiber bonds mutually on every side.Pinprick 5 then makes up and down fiber intert mutually and tangles binding.Simultaneously, along with the raising of fiber bonding point 4 and pinprick 5 density, the warp-wise intensity and the latitudinal strength of needle punched non-woven fabrics also will improve.Therefore, the existing unidirectional array needle punched non-woven fabrics of the latitudinal strength of above-mentioned two kinds of needle punched non-woven fabrics improves a lot.After tested, the warp-wise intensity of embodiment 1 and example 2 is 66 pounds, 62 pounds of latitudinal strengths; 28.7 pounds of warp-wise tearing intensity, 27.7 pounds of broadwise tearing intensity.All reach the intensity of general Woven Fabrics, can be used alone as furniture lining or footwear leather base fabric.

Claims

1, a kind of needle punched non-woven fabrics, form warp fiber layers (1) by the warp fiber (1a) that warp-wise is arranged, the pinprick (5) of distribution transfixation upper and lower surface on it, it is characterized in that: on warp fiber layers (1), also be covered with the weft fiber layer of forming by the weft fiber (2a) of broadwise arrangement (2), warp fiber (1a) and weft fiber (2a) juxtaposition; The pinprick (5) that is uniformly distributed in weft fiber layer (2) upper surface is through between weft fiber layer (2) upper surface and warp fiber layers (1) bottom surface; Whole again needle punched non-woven fabrics is distributed with the fiber bonding point (4) of irregular random distribution from the surface to inside.

2, a kind of needle punched non-woven fabrics, form warp fiber layers (1) by the warp fiber (1a) that warp-wise is arranged, the pinprick (5) of distribution transfixation upper and lower surface on it, it is characterized in that: this needle punched non-woven fabrics is made of three layers of fibrage, bottom is warp fiber layers (1), middle level (2 ') is by left tiltedly and be the left oblique weft that acute angle arranges with warp-wise (2 ' a) form to fiber, upper strata (3) is by to the right tiltedly and be the right oblique weft that same acute angle arranges with warp-wise and form to fiber (3a), warp fiber (1a), (2 ' a), right oblique weft is to fiber (3a) juxtaposition to fiber for left side oblique weft; The pinprick (5) that is uniformly distributed in upper strata (3) upper surface is through between upper strata (3) upper surface and warp fiber layers (1) bottom surface; Whole again needle punched non-woven fabrics is distributed with the fiber bonding point (4) of irregular random distribution from the surface to inside.

3, needle punched non-woven fabrics according to claim 2, its row is levied and is: described left oblique weft is 20 °-45 ° with right oblique weft to the acute angle magnitude range of fiber (3a) and warp-wise to fiber (2a).