WO2018228607A1

WO2018228607A1 - Weft-less fabric, manufacturing method for same, and applications thereof

Info

Publication number: WO2018228607A1
Application number: PCT/CN2018/097990
Authority: WO
Inventors: 陈振坤; 黄兴良; 贺鹏; 郭长明; 李宁
Original assignee: 北京同益中特种纤维技术开发有限公司
Priority date: 2017-06-16
Filing date: 2018-08-01
Publication date: 2018-12-20
Also published as: CN107234854A

Abstract

A weft-less fabric, a manufacturing method for same, and applications thereof. The method comprises the steps of unwinding, bundling, dividing, spreading, and gluing high strength fibers. The glued high strength fibers are compounded on at least one side thereof with a polyethylene film; two or more layers of single orientation sheets having the film thereon are orthogonally compounded together to produce the weft-less fabric. When compounded, at least one polyethylene film is provided between adjacent two single orientation sheets. The manufacturing method allows the production of the weft-less fabric of great performance. The weft-less fabric prevents the problem of stratification and increased depression when made into a bulletproof product.

Description

Non-woven fabric and manufacturing method and application thereof

The present application claims priority to Chinese Patent Application No. JP-A No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. In this application.

Technical field

The invention relates to the technical field of armor resistant products manufacturing, in particular to a non-woven fabric used for ballistic resistant articles, a manufacturing method and application thereof.

Background technique

The bulletproof fiber composite material is a resin-based composite material with fiber as a reinforcing material, which has excellent physical and mechanical properties, good kinetic energy absorption, and the like, and thus has good ballistic performance. Non-woven fabric (UD) composite materials belong to the range of fiber composite materials; the manufacturing methods of high-strength fiber non-woven fabrics include two methods: weaving method and non-woven method. Among them, a single-oriented prepreg tape can be obtained by a nonwoven method. High-strength fibers suitable for making single-oriented prepreg tapes include various types. Ultrahigh molecular weight polyethylene (UHMWPE) fibers are known to be suitable for single-oriented prepreg tapes, thus avoiding reflection of stress waves at the fiber intersections in the woven fabric. And the weakest point of superposition, the single-oriented prepreg tape is more conducive to the energy absorption and energy dissipation of the fiber, and thus has superior anti-elasticity than other fabric structures.

The ballistic resistant material can be classified into a soft ballistic material and a hard ballistic material depending on the elastic modulus of the resin matrix. In the prior art, U.S. Patent No. 8,759,236 discloses a process for preparing a polyolefin fiber reinforced rubber molding. In this patent, rubber is applied to at least one side of a high strength polyethylene fabric to be processed into a ballistic resistant fabric and its ballistic resistant article.

However, after the bulletproof material is made into a bulletproof product, partial delamination and large depression are usually caused, which may affect the ballistic performance.

Summary of the invention

In view of this, the present application provides a non-woven fabric and a manufacturing method and application thereof, and the manufacturing method of the present invention can obtain a non-woven fabric with good performance, which can avoid delamination and depression when the anti-ballistic product is made. The problem is too big.

The present invention provides a non-woven fabric made by orthogonally combining two or more single-oriented sheets, wherein each of the single-oriented sheets comprises:

a high-strength fiber layer; the high-strength fiber layer is made of a single-stranded high-strength fiber through a rubber adhesive;

a polyethylene film layer laminated on at least one side of the high strength fiber layer; the polyethylene film layer being a corona treated or plasma treated polyethylene film;

There is at least one layer of the polyethylene film layer between two adjacent single-oriented sheets.

The non-woven fabric provided by the invention has good performance, and can avoid the problem of delamination and large depression when the ballistic resistant article is made.

The invention also provides a method for manufacturing a weftless cloth, comprising the following steps:

The high-strength fibers are sequentially unwound, bundled, separated, and stretched to obtain high-strength fibers in a single orientation, and then sizing with a rubber adhesive to obtain a high-strength fiber layer;

Forming a corona-treated or plasma-treated polyethylene film on at least one side of the high-strength fiber layer, and drying to obtain a film-oriented single-oriented sheet;

Two or more of the single oriented sheets are orthogonally compounded to obtain a non-woven fabric; and when laminated, at least one layer of the polyethylene film is disposed between two adjacent single-oriented sheets.

According to the manufacturing method of the present invention, a non-woven fabric having good performance can be obtained, and the ballistic resistant product can be formed by using the same, and the problem of delamination and large depression can be avoided.

The present invention uses a high-strength fiber to produce a weft-free cloth in which a high-strength fiber layer is sized by a single-oriented array of high-strength fibers. Specifically, in the embodiment of the present invention, after the high-strength fiber is unwound, the bundle is bundled by the cluster, the split yarn is divided, and the wire is spread, so that the fibers are evenly spread in parallel to obtain a single-oriented high-strength fiber; The dipping tank is glued to obtain a high strength fiber layer.

In an embodiment of the invention, the high strength fiber is selected from the group consisting of aramid fiber, UHMWPE fiber or PBO fiber, that is, the high strength fiber is aramid fiber, UHMWPE fiber, PBO fiber (polyphenylene benzoate) Any of azole fibers).

The source of the high-strength fiber of the present invention is not particularly limited, and a commercially available product may be used. In an embodiment of the present invention, the high-strength fiber has a tensile strength of 20 cN/dtex or more, and the tensile strength includes, but not limited to, 25 cN/dtex or more, 30 cN/dtex or more, 35 cN/dtex or more, and 40 cN/dtex. The tensile modulus is 700 cN/dtex or more, and the tensile modulus includes, but is not limited to, 800 cN/dtex or more, 900 cN/dtex or more, 1000 cN/dtex or more, 1100 cN/dtex or more, 1200 cN/dtex or more, and 1300 cN/dtex. Above, above 1400cN/dtex, above 1500cN/dtex. The tensile modulus is also called Young's modulus, and its physical meaning is: the ratio of stress to strain generated by the object in the linear range (in the elastic range); the tensile strength is the deformation resistance of the object in the elastic range after being subjected to tensile force. Ability, tensile strength = deformation per unit length * tensile modulus.

In an embodiment of the invention, the unwinding, bundling, dividing and spreading are all technical means well known to those skilled in the art. In the embodiment of the present invention, the spread single-oriented high-strength fibers are sized by a rubber adhesive through a dipping tank to obtain a high-strength fiber layer.

In an embodiment of the invention, the adhesive used in the sizing is a rubber based adhesive. In an embodiment of the invention, the rubber matrix is one or more of natural rubber and/or elastomer. Among them, the main component of natural rubber is polyisoprene and its derivatives; synthetic rubber includes polydiene copolymer, styrene block copolymer, polyurethane and the like. In an embodiment of the invention, the rubber adhesive may be in the form of a dispersion or emulsion. In the case where the rubber adhesive is in the form of an emulsion, an auxiliary component such as a vulcanizing agent or an anti-aging agent may be added thereto. In a preferred embodiment of the invention, the sizing is a natural rubber emulsion; it has a solids content of 30% to 60% and a viscosity of 100 to 400 cPs.

In an embodiment of the invention, the weight percentage of the rubber adhesive in the weft-free cloth is 20% or less. That is, when sizing, the amount of sizing is controlled so that the weight percentage of the rubber in the prepared non-woven fabric is 20% or less, and the sizing amount includes but is not limited to 20%, 19%, 18%, 17%, 16%, 15%.

In the embodiment of the present invention, at least one side of the high-strength fiber after sizing, that is, at least one side of the high-strength fiber layer, a corona-treated or plasma-treated polyethylene film is composited, and after drying, a film-coated single is obtained. Orientation sheet.

In the present invention, the polyethylene film is preferably a low density polyethylene film. Low-density polyethylene (LDPE) is a plastic material that is suitable for various molding processes in thermoplastic molding processes and has good moldability. Low density polyethylene is generally produced by high pressure polymerization and has a density of from 0.910 to 0.925 g/cm ³ . Low-density polyethylene film is a translucent, lustrous, soft-textured film with excellent chemical stability, heat sealability, water resistance and moisture resistance, freeze-resistant and boilable.

In an embodiment of the invention, the polyethylene film has a thickness of 10 μm or less. In an embodiment of the invention, the low density polyethylene film has a thickness of 10 μm or less, and the thickness includes, but is not limited to, 9 μm, 8 μm, 7 μm, 6 μm, 5 μm, and 4 μm.

The present invention employs a corona treated or plasma treated polyethylene film; in a preferred embodiment of the invention, the low density polyethylene film is corona treated, such as after 2 kV corona treatment. The method for manufacturing a weft-free cloth provided by some embodiments of the present invention comprises the steps of unwinding, bundling, dividing, spreading, and sizing high-strength fibers, and attaching at least one side of the high-strength fibers after sizing The corona-treated low-density polyethylene film is dried and then two or more film-coated single-oriented sheets are orthogonally compounded. When compounded, at least one low-density polyethylene film is disposed between two adjacent single-oriented sheets.

In the embodiment of the present invention, the PE film may be composited on one side of the high-strength fiber after sizing, or may be composited on both sides thereof. Then, in the embodiment of the present invention, the rubber-coated and polyethylene-attached fibers are dried by hot tunneling, and the drying temperature is preferably 50 to 60 ° C; finally, the winding device is wound up to obtain a film-oriented single-oriented sheet ( Also known as single orientation prepreg tape). Wherein, the compounding may be performed by a conventional process in the art; the surface density of the single-oriented prepreg tape may be 35 to 70 g/m ² .

After obtaining a single orientation sheet with a polyethylene film layer, in the embodiment of the present invention, two or more layers of the single orientation sheet are orthogonally compounded to obtain a weft-free cloth (which may be called an orthogonal composite sheet or a composite sheet); orthogonal composite At least one layer of the polyethylene film is disposed between two adjacent single-oriented sheets. The orthogonal composite is not particularly limited in the present invention; in the embodiment of the present invention, the two orthogonal composite sheets may have an areal density of 50 to 150 kg/m ² .

The non-woven fabric provided by the embodiment of the present invention can be obtained by the foregoing manufacturing method; the non-woven fabric is obtained by the manufacturing method of the embodiment of the present invention, through the low-density polyethylene film introduced therein, and combined with the high-strength fiber and The rubber introduced in the manufacturing method can avoid the phenomenon of delamination and large depression after the shot is made after the preparation of the ballistic resistant article.

Specifically, the manufacturing process of the non-woven fabric in the embodiment of the present invention is as follows:

1) unwinding a certain number of fibers from the creel;

2) the unwound fiber bundle is bundled by the cluster frame;

3) uniformly arranging the fiber bundles after the bundled fiber bundles through the expansion and contraction;

4) The arranged fiber bundle is passed through the wire roller and the wire square beam, and the fiber bundle is uniformly spread by the contact angle of the wire roller and the collapse effect and tension of the wire square beam. Wherein, the wire roller and the wire square beam are alternately fixed in parallel with the central axis; the diameter of the wire roller can be selected as a cylindrical chrome-plated steel roller of 60-100 mm, and the square beam of the wire can be selected as a square column chrome-plated square column with a width of 50-100 mm. ;

5) Spreading the fiber bundle through the rubber emulsion on the dipping tank;

6) The sized fiber is controlled by a pair of rolls to control the amount of glue, and then a low-density polyethylene film is attached on at least one side; the low-density polyethylene film is treated by physical methods such as corona and plasma to make the film generating pole Sex

7) Dry fully in the hot road;

8) Winding;

9) Two or more single-oriented prepreg tapes are orthogonally compounded.

In some embodiments of the present invention, the single-oriented prepreg tape may be orthogonally compounded at 0°/90° to obtain a two-orthogonal composite sheet (also referred to as a “non-woven fabric” in the present invention), such as FIG. 1 is a schematic structural view of a two-orthogonal non-woven fabric according to an embodiment of the present invention. The non-woven fabric of the structure shown in Fig. 1 is orthogonally composited by two single-oriented sheets, wherein each single-oriented sheet comprises a high-strength fiber layer which is composed of a single-oriented high-strength fiber through a rubber adhesive. a rubber film; and a polyethylene film layer laminated on one side of the fiber layer, which is a corona or plasma treated polyethylene film (PE film). Moreover, there is a PE film between the two single-oriented sheets to increase the interlaminar shear force, thereby reducing the delamination phenomenon.

In other embodiments of the present invention, the single-oriented prepreg tape may also be orthogonally compounded at 0°/90°/0°/90° to obtain a quadruplex composite sheet (also referred to in the present invention. As shown in FIG. 2, FIG. 2 is a schematic structural view of a four-orthogonal non-woven fabric according to an embodiment of the present invention.

Further, the present invention provides a ballistic resistant article which is obtained by orthogonally stacking a plurality of orthogonal composite sheets which are subjected to die pressing, and the orthogonal composite sheets are the above-described laid fabrics.

In an embodiment of the present invention, after orthogonally stacking a plurality of orthogonal composite sheets, during molding of the ballistic resistant article, the pressure is at least 20 MPa, the temperature is at least 130 ° C, and the dwell time is at least 10 minutes. Specifically, it can be molded on a 600-ton press at a temperature of 130 ° C for 10 minutes, and the mold can be opened at a pressure of 40 ° C to obtain a ballistic resistant article.

In a preferred embodiment of the present invention, a plurality of two orthogonal composite sheets are orthogonally stacked and then molded to obtain a ballistic resistant article; wherein the number of layers of the plurality of orthogonal composite sheets may be more than 100 layers. The invention can be made into a soft ballistic resistant article or a rigid ballistic resistant article.

The ballistic resistant article provided by the invention tests the M80 projectile according to the NIJ0101.04 standard, and the depression is significantly reduced after the bombardment, and no delamination occurs, and the ballistic performance is excellent.

DRAWINGS

1 is a schematic structural view of a two-orthogonal non-woven fabric according to an embodiment of the present invention;

2 is a schematic structural view of a four-orthogonal non-woven fabric according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described below. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In order to further understand the present application, the non-woven fabric and its manufacturing method and application provided by the present application will be specifically described below in conjunction with the embodiments.

Comparative example 1

The commercially available ultra-high molecular weight polyethylene fiber 400D/400F (strength 36cN/dtex, tensile modulus 1350cN/dtex, grade FT133, produced by Beijing Tongyizhong Special Fiber Technology Development Co., Ltd.) is unwound from the creel The unwound fiber bundle is sequentially passed through the bundling frame bundle, the split wire split wire, the wire laying equipment is spread, the wire rod and the wire square beam are parallel-fixed in parallel with the central axis; the diameter of the wire roller is selected as a cylinder of 80 mm The chrome-plated steel roll and the squared beam are selected as a square column chrome-plated square column with a width of 80 mm to obtain a single-oriented fiber.

Then, the spread fiber bundle is glued through the dipping tank, and a 10 μm thick non-corona treated low-density polyethylene film (PE film of Beijing Xinminghong Plastic Co., Ltd.) is attached to the glued wire. The rubberized fibers were dried by hot kneading at 60 ° C, and finally wound up by a winding device to obtain a single-oriented prepreg tape. Wherein, the mono-orientation prepreg has an areal density of 35 g/m ² .

The prepreg obtained above was orthogonally compounded at 0°/90° to obtain a bi-orthogonal composite sheet and the low-density polyethylene film was peeled off; the obtained two orthogonal composite sheets had an areal density of 70 g/m ² .

In the present comparative example, a natural rubber emulsion (Tavorn Rubber Industry (1982) Co., Ltd., brand TVR Laterx) was used for the sizing, and the amount of sizing was 10% (in the present invention, the amount of sizing refers to It is the ratio of the weight of the applied adhesive to the weight of the resulting laid fabric.

The above two orthogonal composite sheets were stripped of the low density polyethylene film to obtain a filmless prepreg, and then 257 layers of the filmless prepreg were laid up into an orthogonal stack having an areal density of 18 kg/m ² at a 600 ton press. On the above, molding was carried out at a temperature of 130 ° C for 10 minutes, and the mold was opened at a pressure of 40 ° C to obtain a ballistic resistant article.

The M80 bomb was tested according to the NIJ0101.04 standard. The results showed that the depression was 50 mm and the delamination was severe.

Comparative example 2

In accordance with Comparative Example 1, an aqueous polyurethane emulsion (U53, bayer) was substituted for the natural rubber emulsion.

An orthogonal stack having an areal density of 18 kg/m ² obtained from 257 layers of the above-mentioned two orthogonal composite sheets containing a low-density polyethylene film was molded on a 600-ton press at a temperature of 130 ° C for 10 minutes to maintain pressure. The mold was cooled down to 40 ° C to obtain a bulletproof product.

The M80 projectile was tested according to the NIJ0101.04 standard. The results show that the depression is 42 mm and there is no delamination.

Example 1

Then, the spread fiber bundle is glued through the dipping tank, and a 4 μm thick 2kV corona treated low-density polyethylene film (DYPE film of Beijing Xinminghong Plastic Co., Ltd.) is attached to the glued wire. The rubberized fibers were dried by hot kneading at 60 ° C, and finally wound up by a winding device to obtain a single-oriented prepreg tape. Wherein, the mono-orientation prepreg has an areal density of 35 g/m ² .

The prepreg obtained above was orthogonally compounded at 0°/90° to obtain a two-orthogonal composite sheet; the surface density of the two orthogonal composite sheets was 70 g/m ² .

In the present embodiment, the sizing is a natural rubber emulsion (Tavorn Rubber Industry (1982) Co., Ltd., brand TVR Laterx), and the amount of sizing is 10% (in the present invention, the amount of sizing refers to The ratio of the weight of the applied adhesive to the weight of the resulting laid fabric.

An orthogonal stack having an areal density of 17 kg/m ² was obtained from 243 layers of the above-mentioned two orthogonal composite sheets, and molded on a 600-ton press at a temperature of 130 ° C for 10 minutes, and the pressure was lowered to 40 ° C to open the mold. Bulletproof products.

The M80 projectile was tested according to the NIJ0101.04 standard. The results showed that the depression was 35 mm, which met the standard requirements and did not cause delamination.

Thus, it can be seen that in the weft-free fabric produced by the manufacturing method according to the present invention, since the low-density polyethylene film is introduced therein, and the high-strength fiber and the rubber introduced in the manufacturing method are combined, it is possible to cause the depression after the bombardment. Significantly reduce while avoiding stratification.

Example 2

The commercially available aramid fiber 1600D/1000F (strength 23.5cN/dtex, tensile modulus 957cN/dtex, Teijin Twaron 2000) is unwound from the creel, and the unwound fiber bundle is sequentially bundled and divided by the cluster frame. For the split wire, the spreading equipment, the wire rod and the square beam of the wire are parallel-fixed by the parallel axes of the central axis; the diameter of the wire roller is selected as a cylindrical chrome-plated steel roller of 80 mm, and the square beam of the wire is selected as a square with a width of 80 mm. The column is chrome-plated square columns to obtain fibers in a single orientation.

Then, the spread fiber bundle is glued through the dipping tank, and a 4 μm thick 2kV corona treated low-density polyethylene film (DYPE film of Beijing Xinminghong Plastic Co., Ltd.) is attached to the glued wire. The rubberized fibers were dried by hot kneading at 60 ° C, and finally wound up by a winding device to obtain a single-oriented prepreg tape. Wherein, the surface density of the single-oriented prepreg tape is 52 g/m ² .

The prepreg obtained above was orthogonally compounded at 0°/90° to obtain a bi-orthogonal composite sheet; the areal density of the two orthogonal composite sheets was 104 g/m ² .

In the present embodiment, a natural rubber emulsion (Tavorn Rubber Industry (1982) Co., Ltd., brand TVR Laterx) was used for the sizing, and the amount of sizing was 15%.

An orthogonal stack having an areal density of 20 kg/m ² was obtained from a 192-layer two-orthogonal composite sheet, and molded on a 600-ton press at a temperature of 130 ° C for 10 minutes, and the pressure was lowered to 40 ° C to open the mold to obtain a bulletproof product.

The M80 bomb was tested according to the NIJ0101.04 standard. The results showed that the depression was 38 mm, which met the standard requirements and did not cause delamination.

Example 3

The commercially available PBO fiber 1000D/650F (strength 37cN/dtex, tensile modulus 1150cN/dtex, Toyobo zylon) is unwound from the creel, and the unwound fiber bundle is sequentially passed through the cluster bundling and splitting fork. The exhibition of wire exhibition equipment, the wire roller and the square beam of the wire are parallel-fixed by the parallel axes of the central axis; the diameter of the wire roller is selected as a cylindrical chrome-plated steel roller of 80 mm, and the square beam of the wire is selected as a square column chrome-plated square with a width of 80 mm. Columns yield fibers in a single orientation.

Then, the spread fiber bundle is glued through the dipping tank, and a 4 μm thick 2kV corona treated low density polyethylene film (DYPE film of Beijing Xinminghong Plastic Co., Ltd.) is attached to the glued wire. The rubberized fibers were dried by hot kneading at 60 ° C, and finally wound up by a winding device to obtain a single-oriented prepreg tape. Wherein, the mono-orientation prepreg has an areal density of 56 g/m ² .

The prepreg obtained above was orthogonally compounded at 0°/90° to obtain a bi-orthogonal composite sheet. The surface density of the two orthogonal composite sheets was 112 g/m ² .

An orthogonal stack having an areal density of 15 kg/m ² was obtained from 134 layers of two orthogonal composite sheets, molded on a 600-ton press at a temperature of 130 ° C for 10 minutes, and the pressure was lowered to 40 ° C to open the mold to obtain a bulletproof product.

The M80 bomb was tested according to the NIJ0101.04 standard. The results showed that the depression was 32 mm, which met the standard requirements and did not cause delamination.

Example 4

Then, the spread fiber bundle is glued through the dipping tank, and a 4 μm thick low-density polyethylene film treated with 2 kV corona is attached to both sides of the glued silk (DYPE of Beijing Xinminghong Plastic Co., Ltd.) Membrane), the glued fiber was dried by a hot tunnel at 60 ° C, and finally wound up by a winding device to obtain a single-oriented prepreg tape. Wherein, the surface density of the single-oriented prepreg tape is 62 g/m ² .

The prepreg obtained above was orthogonally compounded at 0°/90° to obtain a two-orthogonal composite sheet; the areal density of the two orthogonal composite sheets was 124 g/m ² .

An orthogonal stack having an areal density of 15.0 kg/m ² was obtained from a 121-layer two-orthogonal composite sheet, and molded on a 600-ton press at a temperature of 130 ° C for 10 minutes, and the pressure was lowered to 40 ° C to open the mold. Bulletproof products.

The M80 bomb was tested according to the NIJ0101.04 standard. The results showed that the depression was 30 mm, which met the standard requirements and did not cause delamination.

Example 5

According to Example 1, the difference was that a 6 μm corona-treated PE film was used to prepare a ballistic resistant article.

The M80 projectile was tested according to the NIJ0101.04 standard. The results showed that the depression was 40 mm, which met the standard requirements and did not cause delamination.

Example 6

According to Example 1, the difference was that the amount of sizing of the natural latex was 20%, and a ballistic resistant article was prepared.

The M80 projectile was tested according to the NIJ0101.04 standard. The results showed that the depression was 44 mm, which met the standard requirements and did not cause delamination.

Example 7

According to the first embodiment, the prepreg obtained above is orthogonally compounded at 0°/90°/0°/90° to obtain a two-orthogonal composite sheet; the areal density of the two orthogonal composite sheets is 140g. /m ² .

The M80 bomb was tested according to the NIJ0101.04 standard. The results showed that the depression was 33 mm, which met the standard requirements and did not cause delamination.

The Applicant indicates that while the above is a description of specific embodiments of the present disclosure, it will be apparent to those skilled in the art that The present invention is not limited to the scope of the present disclosure, and various modifications and changes can be made to the present disclosure without departing from the spirit and scope of the invention. Accordingly, the invention is intended to cover all modifications and variations of the present invention within the scope of the appended claims.

Claims

A non-woven fabric made by orthogonally combining two or more single-oriented sheets, wherein each of the single-oriented sheets comprises:

a high-strength fiber layer; the high-strength fiber layer is made of a single-stranded high-strength fiber through a rubber adhesive;

a polyethylene film layer laminated on at least one side of the high strength fiber layer; the polyethylene film layer being a corona treated or plasma treated polyethylene film;

There is at least one layer of the polyethylene film layer between two adjacent single-oriented sheets.
The non-woven fabric according to claim 1, wherein the high-strength fiber has a tensile strength of 20 cN/dtex or more.
The non-woven fabric according to claim 1, wherein the high-strength fiber is selected from the group consisting of aramid fibers, UHMWPE fibers, and PBO fibers.
The non-woven fabric according to claim 1, wherein the weight percentage of the rubber adhesive in the weft-free cloth is 20% or less.
The nonwoven fabric according to claim 1, wherein the polyethylene film is selected from the group consisting of low density polyethylene films.
The non-woven fabric according to claim 1, wherein the polyethylene film has a thickness of 10 μm or less.
A method for manufacturing a non-woven fabric, comprising the steps of:

The high-strength fibers are sequentially unwound, bundled, separated, and stretched to obtain high-strength fibers in a single orientation, and then sizing with a rubber adhesive to obtain a high-strength fiber layer;

Forming a corona-treated or plasma-treated polyethylene film on at least one side of the high-strength fiber layer, and drying to obtain a film-oriented single-oriented sheet;

Two or more of the single oriented sheets are orthogonally compounded to obtain a non-woven fabric; and when laminated, at least one layer of the polyethylene film is disposed between two adjacent single-oriented sheets.
A ballistic resistant article obtained by orthogonally stacking a plurality of orthogonal composite sheets, wherein the orthogonal composite sheet is the non-woven fabric according to any one of claims 1 to 6 or claim 7 The laid fabric produced by the manufacturing method described.
The ballistic resistant article according to claim 8, wherein the molding process has a pressure of at least 20 MPa, a temperature of at least 130 ° C, and a dwell time of at least 10 minutes.
The ballistic resistant article according to claim 8, wherein the number of layers of the plurality of two orthogonal composite sheets is more than 100 layers, which are obtained by orthogonally stacking a plurality of two orthogonal composite sheets.