JP3790013B2 - Stretched orthogonal nonwoven fabric and its production method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an orthogonal nonwoven fabric of stretched webs suitable for various post-processing, a stretched orthogonal nonwoven fabric obtained by bonding the stretched webs, and a method for producing them.
[0002]
[Prior art]
The inventors of the present application have made various inventions and industrializations on orthogonal nonwoven fabrics by drawing a spun web into a warp or a width, and then laminating and adhering them (Japanese Patent Publication No. 3-36948, Japanese Patent Laid-Open No. Hei 2-). 269859, JP-A-2-269860, Japanese Patent Application No. 6-315470, etc.). The stretched orthogonal nonwoven fabric of the present invention is formed by making these orthogonal nonwoven fabrics more suitable for post-processing.
[0003]
[Problems to be solved by the invention]
The prior invention by the inventors of the present application is formed in the form of a non-woven fabric that can be used directly for end use, and the warp-stretched web and the stretched web are joined over the entire plane by hot embossing or emulsion adhesion after orthogonal lamination. Has been.
However, these joining processes are not always incorporated in-line with the orthogonal lamination process. In certain applications, special joining may be desired, and it is not always advantageous to incorporate all of these joining means in-line into the orthogonal lamination process. For example, assuming that the in-line joining process has hot embossing and emulsion adhesion, the following cases can be considered.
(1) Even with the same heat embossing, a special embossing pattern different from the embossing pattern inline may be required.
(2) In emulsion bonding, a special blending device or a ventilation device may be required because a special adhesive is used.
(3) There is a case where a joining means that the factory does not have is required. For example, joining by water jet, needle punch or the like.
(4) It is necessary to laminate a plurality of horizontal stretched web layers, which may be inconvenient in in-line lamination.
(5) When combining with other laminated materials such as a short fiber card web and a melt blown nonwoven fabric, there is a case where it is desired to integrally laminate in a process having a production line for these other materials. This is because short fiber card webs and the like are cotton-like and it is often difficult to wind up long ones.
[0004]
In the above case, if the orthogonal nonwoven fabric has already been weft-bonded, the non-woven fabric is stiffened by post-processing in another process, and the fibers have already been heat-treated during the weft-bonding As a physical property of the fiber, joining in post-processing becomes difficult.
In addition, if the orthogonal nonwoven fabric has already been subjected to history joining, there may be cases where it is morphologically inappropriate for joining the history or joining with other materials. Examples thereof will be specifically described below.
(1) When post-processing is the water jet method, it is characterized in that a non-woven fabric with a soft and good texture can be obtained. However, when the background is joined, when joining further or other webs In addition, a high-pressure water needle is required, and the line speed is decreased, or the number of times of passing the water needle is increased.
(2) When the post-processing is the needle punch method, a non-woven fabric with a good texture can be obtained easily, and it can be combined with various other materials at a low cost. When it is further joined or joined to another web, the needle breaks or becomes entangled insufficiently, the line speed decreases, and the number of times the needle punch passes needs to be increased. Become.
(3) When the post-processing is the through-air method, it becomes a non-woven fabric with good texture and good texture, and a composite product with other materials with excellent texture is obtained, but the process is joined In this case, it is necessary to increase the number of times that air does not penetrate, the entanglement becomes insufficient, the line speed decreases, and the air is penetrated.
(4) When the post-processing is the hot embossing method, a smooth and strong nonwoven fabric can be obtained. However, when the process is joined, the heat sealability is reduced, and the resulting product has an appearance and texture. Often inferior.
(5) When the post-processing is an adhesive bonding method, the process has a strong adhesive force, and is characterized by the ability to process various chemicals that impart dyeing agents and antibacterial agents. If so, there is little absorption of the adhesive or the like, and the obtained product often has poor appearance and texture. Examples of the adhesive include emulsion adhesives, powder adhesives, hot melt adhesives, solvent adhesives, and the like.
(6) When the post-processing is the stitch bond method, it is the same as the needle punch method.
Further, when the post-processing is the ultrasonic sealing method and the induction heating sealing method, it is the same as the case of the hot embossing method.
[0005]
However, if only the laminated stretched web and the stretched web are laminated and wound without any joining, and the joining as described above is performed in a separate process, the take-up web and the transverse web are not joined. When the product is redrawn, the product is disturbed and the product form and physical properties are insufficient. This disturbance is particularly noticeable in the horizontal stretched web. In winding and unwinding, a force is often applied in the vertical direction, but since the horizontal web after the ear is slit is not fixed in the vertical direction, the position easily shifts with a little force. .
[0006]
Other materials to be combined in the post-processing of the present invention include short fiber card webs, melt blown nonwoven fabrics, spunbond nonwoven fabrics, nets, tow spread webs, and the like. Hereinafter, examples in which these materials are applied will be shown.
(1) The short fiber card web is characterized in that it can be made of various materials. For example, cotton is used to add water and moisture absorption, nylon card web is used to improve dyeability, and conjugate fiber card web is used to add bulkiness. It is possible to combine them.
(2) The melt blown nonwoven fabric is suitable for a composite product containing ultrafine fibers, and can be reinforced with the stretched orthogonal nonwoven fabric of the present invention and used for a filter or the like.
(3) The spunbonded nonwoven fabric is suitable for enhancing the texture by being reinforced with the stretched orthogonal nonwoven fabric of the present invention.
(4) Nets, especially split fiber nonwoven fabrics (“Nisseki Warif” (trademark) made by Nisseki Plast Co., Ltd.), Nisseki Conwednet (trade name, made by Nisseki Sheet Pallet System Co., Ltd.), etc. , There is strength, can adjust the breathability and texture. By combining the net, the card web, and the stretched orthogonal nonwoven fabric, the entanglement of the card web with the net is improved. It is particularly suitable when using the net shrinkage afterwards.
(5) The toe opening web is most suitable for improving the strength in the vertical direction.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the inventors of the present invention have conducted intensive research, and as a nonwoven fabric suitable for post-processing, as a nonwoven fabric suitable for post-processing, a stretched web obtained by stretching a continuous body consisting of spun and accumulated long fiber filaments in the vertical direction, and A stretched orthogonal non-woven fabric formed by adhering only both ears in a state where a continuous web of spun and accumulated long fiber filaments is stretched in a horizontal direction and laminated so that the stretching direction is orthogonal. It is to provide.
The vertical direction in the present invention refers to a direction in which the web continuously flows in the process, and is also referred to as a machine direction. The horizontal direction is the cross direction of the web.
[0008]
The stretched web used in the present invention is made of long fiber filaments spun by a nonwoven spinning apparatus such as a melt blown nonwoven fabric or a spunbond nonwoven fabric and accumulated on a conveyor as detailed in the above-mentioned prior invention. It consists of a laminate of a continuous body stretched in the vertical direction and a continuous body of similar long fiber filaments stretched in the horizontal direction. In this case, in the continuous body of spun long fiber filaments to be stretched, it is desirable that the filaments are arranged in the vertical direction. Similarly, in the continuous body of spun long fiber filaments to be stretched horizontally. It is desirable that the filaments are arranged in the horizontal direction. When the filaments are arranged in the drawing direction, the arrangement of the filaments after drawing is good and the strength after drawing is also large.
Although the stretch ratio varies depending on the type of polymer, it is usually 5 times or more, preferably 5.5 times or more for polyester, and usually 6 or more, preferably 7 times or more for polypropylene. Accordingly, the web strength in the stretching direction of the warp stretched web and the horizontal stretched web that they constitute is at least 1.5 g / d (strength per denier), preferably 2 g / d or more, more preferably 2.5 g / d or more. It is.
The long fiber filament used in the present invention does not necessarily mean a continuous long fiber, but it is longer than 10 to 50 mm of ordinary short fiber, and the filament occupying most of it is longer than 100 mm, usually several hundred millimeters or more. It is comprised with the filament.
The diameter of the filament of the web orthogonally laminated in the stretched orthogonal nonwoven fabric of the present invention is usually 10 μm or less and around 5 μm in the main constituent filament. Since the diameter of the filament that can be stably and economically spun is about 20 μm, it can be obtained by stretching it 5 to 7 times.
[0009]
This invention provides the extending | stretching orthogonal nonwoven fabric formed by adhere | attaching only the both ear | edge part in the state which laminated | stacked the said vertical stretched web and the horizontal stretched web.
Both ear portions are the end portion in the transverse direction of the web or a portion starting from the inside of several millimeters from the end portion.
The width of the bonded portion is usually several millimeters, but is appropriately determined depending on the economic efficiency and the intended use of the nonwoven fabric of the present invention.
[0010]
As a method for bonding both ears used in the present invention, there are a heat seal, an ultrasonic seal, an induction heating seal, and an adhesive seal. The adhesive seal includes a hot melt adhesive, a powder adhesive, an emulsion adhesive, Various adhesives such as solvent adhesives can be used.
The ultrasonic sealing method is particularly suitable as the method for bonding both ear portions of the present invention.
In the case of the heat sealing method, the joint becomes thick due to heat shrinkage. When a product with only both ears heat-sealed is rolled into a roll shape, both ears become thick, so it is not possible to wind up long items, and even if it can be rolled, the adhesive part is raised, and the product Is often unsuitable because of non-uniformity.
The method using an adhesive is often unsuitable because the thickness of the adhesive is added in addition to the heat shrinkage described above.
The induction heat sealing method is close to the heat sealing method.
On the other hand, the ultrasonic sealing method has little heat shrinkage, and even when a long one is wound up, there is little rise in both ears, and if it is wound while traversing around 10 mm in the width direction, it is several thousand meters long. It is also possible to wind. The reason why the shrinkage in ultrasonic bonding is small is considered to be due to the fact that only the filament interface generates heat due to vibration, and the temperature of the filament as a whole is small.
[0011]
Stretched orthogonal nonwoven fabric consisting of a warp stretched web and a horizontal stretched web with only both ears bonded, in a separate process, heat embossing, emulsion bonding, water jet bonding, needle punch bonding, ultrasonic sealing, powder dot bonding, A vertical web and a horizontal web are joined in earnest by a joining method such as a through-air method that penetrates hot air or a stitch bond method so as to suit the final use.
The stretched orthogonal nonwoven fabric is also particularly suitable for producing a stretched orthogonal nonwoven fabric combined with other materials in a separate process. Other materials include short fiber card webs, nets, meltblown nonwoven fabrics, spunbond nonwoven fabrics, tow spread nonwoven fabrics, and the like.
In addition, the stretched orthogonal nonwoven fabric in which only both ears are bonded is effective particularly when it is necessary to use a multi-layered horizontal web as a raw material for laminating a vertical stretched web and a horizontal stretched web. For example, a vertical / horizontal / vertical / horizontal / vertical laminated web is difficult to obtain in one step. In that case, a stretched orthogonal nonwoven fabric (web A) in which only both ears of the present invention are bonded as a raw material of the vertical / horizontal / vertical laminate is produced, and then, in the horizontal stretch web lamination line, the web A and another vertical web The laminated web is laminated with a horizontal stretched web interposed therebetween to form the five-layer laminated web, and the laminated web is further joined by hot embossing or emulsion adhesion.
[0012]
When manufacturing a composite nonwoven fabric by joining a stretched orthogonal nonwoven fabric bonded only to both ears and another material, the stretched orthogonal nonwoven fabric has a fiber running linearly in the vertical direction. Even if it is entangled with a needle, through air or the like, the entanglement is not sufficient, and the stretched filament of the stretched orthogonal nonwoven fabric is easily cut by the needle of a needle punch or the like. When the filament constituting the stretched orthogonal nonwoven fabric bonded only to both ears has an elongation of several tens of percent, the cutting is relatively small and the entanglement is also good. However, when the elongation is small, it is effective to supply the stretched orthogonal nonwoven fabric excessively when joining with other materials. That is, by imparting a degree of freedom of deformation to the filaments constituting the stretched orthogonal nonwoven fabric, the entanglement is improved, the filaments are cut less, and the reinforcing effect is exhibited.
Here, the excessive supply is to supply so that the basis weight is 10% or more larger than the supply method of the stretched orthogonal nonwoven fabric, and the transverse shrinkage of the stretched orthogonal nonwoven fabric, the excessive supply in the vertical direction, and the crimp are reduced. There are methods to apply.
Since the transverse direction of the stretched orthogonal nonwoven fabric is relatively easily deformed by shrinkage or the like, the method of excessive supply by shrinkage in the transverse direction is particularly effective as compared to the excessive supply in the vertical direction.
Oversupply in the vertical direction can be achieved by supplying a stretched orthogonal nonwoven fabric with only both ears bonded onto another material at a higher speed than the supply rate of the other material. When accuracy is required, it can be achieved by a method of crimping using only a gear crimp on both ears.
[0013]
In recent years, leather substitute products such as artificial leather and synthetic leather have grown into new applications in the fields of fashion goods and bags, and have established a field in the textile industry. Many of these are polyester or polyamide ultrafine denier (around 0.1 denier or less) filaments made into a web using a needle punch, water needle, through-air method, or the like. In this case, in women's fashion clothing and accessories, etc., products as thin as possible (thickness of 0.6 mm or less) are required, but the strength of the thin web is low only by making it into a web with a needle punch or the like, In many cases, practical strength is not reached. Therefore, needle punching or the like is performed using a woven fabric or the like as a core, but if a woven fabric is used, the penetration resistance of the needle or the like is large, the needle breaks, and the productivity deteriorates. The texture is reduced. In addition, since thin fabrics are woven with thin threads, the raw material costs and weaving costs are high, and the product costs are also high.
By using the stretched orthogonal nonwoven fabric with only both ears of the present invention bonded as the core of artificial leather or synthetic leather made of fine denier filament, the penetrability of needles and the like is improved, and the productivity is improved. Since the web can be efficiently entangled, a product with improved quality such as texture and strength can be manufactured at a low cost.
[0014]
The production method of the stretched web used in the present invention, the method of laminating the vertical web and the horizontal web, and the like can be produced by using the prior invention of the present inventors. The stretched orthogonal nonwoven fabric of the present invention is obtained by forming the orthogonal nonwoven fabric obtained by the previous invention so as to be more suitable for post-processing.
[0015]
Examples of the polymer that contributes to the strength imparted to the filaments constituting the stretched orthogonal nonwoven fabric of the present invention include thermoplastic resins such as polyethylene, polypropylene, polyester, polyamide, polyvinyl chloride resin, polyurethane, fluorine resin, and the like. Modified resins can be used. In addition, resins by wet or dry spinning means such as polyvinyl alcohol resins and polyacrylonitrile resins can also be used.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
【Example】
FIG. 1 is a partial perspective view showing an example of a stretched orthogonal nonwoven fabric in which only both ears of the present invention are bonded. The horizontal stretched web 1 and the vertical stretched web 2 are laminated so that the filament stretching directions are orthogonal to each other, and have adhesive portions 3a and 3b only at both ears. For ease of understanding, only a part of the vertical web is shown.
As a form of lamination, it is possible to further laminate a vertical stretched web on the back side of the horizontal stretched web 1, and this case also belongs to the scope of the present invention.
[0017]
FIG. 2 shows an example of the method for producing the stretched orthogonal nonwoven fabric shown in FIG. 1, FIG. (A) is a schematic side view of the production line, and FIG. (B) is a plan view thereof. Polyester horizontal stretched web 1 spun and stretched by the method described in Japanese Patent Publication No. 3-36948 (width 1270 mm, basis weight 11 g / m) ² , A web strength of 12.8 kg / 5 cm-width, elongation 18%) is fed continuously at a speed of 20 m / min through a horizontal stretching line. In this case, the horizontal stretched web 1 is introduced with the ear gripping portions 4a and 4b in the horizontal stretch, but by leaving this, the disturbance of the horizontal stretched web can be reduced. Note that the reason why the vertical stretch web is directly connected to the horizontal stretch line as shown in the figure is that it is difficult to wind only the horizontal stretch web.
Polyester warp stretched web 2 (width 1200 mm, basis weight 13 g / m) spun and stretched on the stretched web 1 in the manner described in the above Japanese Patent Publication No. 3-36948. ² , The strength of the web (13.1 kg / 5 cm-width, elongation of 11%) is laminated between the nip rolls 11a and 11b so that the filament stretching directions are orthogonal to form a laminated web 12. The vertical stretched web 2 may be a product in a separate process as shown in FIG. 2A, or may be directly connected to a vertical web production line.
The measured values of the web strength were obtained under the conditions of a chuck interval of 10 cm, a sample width of 5 cm, and a tensile speed of 10 cm / min. When the strength value is converted into the strength per denier, the strength of the horizontal stretched web 1 of the above example is 2.6 g / d, and the strength of the vertical stretched web 2 is 2.2 g / d.
The laminated web 12 is bonded to only the 3 mm width of both ears between the ultrasonic oscillating horns 13a and 13b in the ultrasonic wave oscillating apparatus of 600 W and 19 kHz and the metallic ultrasonic seal receiving roll 14. Thereafter, the adhesive portions 3 a and 3 b or the outside thereof are slit between the score cutters 15 a and 15 b and the receiving roll 16. Next, after the whole is taken up by the nip rolls 17a and 17b, the slit outer end portions (trimming edges) 18a and 18b are collected as trimming loss. A portion inside the slit position is wound as a stretched orthogonal nonwoven fabric 19 and used for subsequent post-processing.
In addition, when aiming at producing a vertical / horizontal / vertical web as a product, the vertical stretched web 20 is supplied to the nip rolls 11a and 11b.
Although FIG. 2 shows an example in which a score cutter is used as a method for forming a slit, a shear cutter, a leather cut, or the like can also be used. In addition, the ultrasonic oscillating horns 13a and 13b for bonding both ears may be provided with not only the ultrasonic seal receiving roll 14 but also a slitter blade so that a single horn can serve as an adhesive and a slit. is there.
In FIGS. 1 and 2, the bonding portions 3 a and 3 b and the end portions outside the bonding portion are enlarged for easy understanding, but usually have a width of 2 to 3 mm. In addition, you may slit the adhesion part itself.
[0018]
FIG. 3 is a schematic side view showing an example of a production process of a stretched orthogonal nonwoven fabric obtained by laminating and joining a warp stretched web and a horizontal stretched web to a stretched orthogonal nonwoven fabric in which only both ears are bonded. A horizontal stretched web 1 is continuously introduced from a horizontal stretch line, and a stretched orthogonal nonwoven fabric 19 (vertical / horizontal or vertical / vertical / longitudinal) is formed by adhering only the vertical stretched web 2 and both ears manufactured by the method of FIG. A laminated web 31 is obtained by laminating the nip rolls 11a and 11b.
The laminated web 31 is subjected to a heat embossing process over the entire product width by the heated embossing roll 32 and the embossing receiving roll 33, and then between the score cutter 15 and the slitter receiving roll 16 similar to those shown in FIG. After slitting the ear and picking it up by the nip rolls 17a and 17b, the slit outer end portion (trimming edge) 34 is recovered as trimming loss, and the portion inside the slit is wound as the bonded stretched orthogonal nonwoven fabric 35 of the present invention. Take it for final use as a vertical / horizontal / vertical / horizontal (/ vertical) layered form.
In FIG. 3, although the example of the heat embossing was shown, other joining means, such as emulsion adhesion | attachment, can also be used.
[0019]
FIG. 4 is a schematic side view showing an example of a production process of a stretched orthogonal nonwoven fabric obtained by laminating and joining a stretched orthogonal nonwoven fabric bonded only to both ears and another material. The card web 41 is continuously introduced from the production line, and the stretched orthogonal nonwoven fabric 19 produced by the method of FIG. 2 is laminated between the nip rolls 42 a and 42 b to form a laminated web 43.
A laminated web 43 is formed between a stripper plate 45 and a head plate 46 having a hole portion in a portion corresponding to the vertical movement of the needle by moving a needle beam 44 composed of a large number of needles having thorn-shaped small protrusions up and down. The filaments are entangled with each other over the entire product width. Thereafter, the ear is slit between the score cutter 47 and the slitter receiving roll 48, and after being picked up by the nip rolls 49a and 49b, the slit outer end portion (trimming edge) 50 is collected as a trimming loss, and inside the slit. The portion is wound up as a stretched orthogonal nonwoven fabric 51 joined with another material and supplied to the end use as a product.
Although FIG. 4 shows the case where there is one needle beam, it can be provided in multiple stages to increase the production speed.
As other materials to be combined, not only card webs but also melt blown nonwoven fabrics, spunbond nonwoven fabrics, nets, tow spread webs, and the like can be used. Further, as the product configuration, other materials 52 such as a net can be combined.
In FIG. 4, an example of the needle punch method is shown. Similarly, a water jet method, a through-air method, a heat embossing method, an adhesive bonding method, a stitch bond method, an ultrasonic sealing method, an induction heating sealing method, and the like are also used. can do.
[0020]
FIG. 5 is a schematic side view showing an example of a manufacturing process for excessively supplying the stretched orthogonal nonwoven fabric with only both ears bonded in FIG. The card web 41 is continuously introduced from the production line, on which the stretched orthogonal nonwoven fabric 19 is supplied between the nip rolls 53a and 53b at a speed 18% faster than the running speed of the card web 41, and another card web 54 is further supplied. Are taken up by the nip rolls 42a and 42b, and thereafter processed in the same manner as in FIG.
By excessive supply, the strength of the stretched orthogonal nonwoven fabric 51, which is a composite product, increases in proportion to the supply ratio of the stretched orthogonal nonwoven fabric 19, but when the excess supply amount is 10% or less, a significant improvement in strength is observed. I couldn't.
Further, although FIG. 5 shows a case where there is one needle beam, it can be provided in multiple stages to increase the production speed.
[0021]
6 shows another example of excessive supply in FIG. 5, FIG. 6 (A) is a partial side view, and FIG. 6 (B) is a front view thereof. The stretched orthogonal nonwoven fabric 19 in which only both ears are bonded is strongly pressed against the different-diameter roll 61 with a round groove to form a contracted nonwoven fabric 62 in which the transverse direction is contracted, and between the gears 63a and 63b and between the gears 63a and 64b (64b Is not shown) and gear crimps are applied only to both ears of the shrinkable nonwoven fabric 62 to form an excessively supplied nonwoven fabric 65 which is excessively supplied in the vertical direction, and thereafter guided onto the card web 41 as in FIG.
As a means for narrowing the transverse direction, it is possible to increase the contraction effect by making the groove of the illustrated different-diameter roll 61 into a screw shape that feeds the inner side from both sides. In addition, the width can be reduced by using a widening means such as an expander roll.
In addition to the gear crimps shown in the figure, the vertical crimp means includes a method of using deformation of a rubber sheet such as a sunholize process of a fabric, or a press crimp process such as a microphone rex process used for flexible processing of a nonwoven fabric. There are methods that use the principle.
[0022]
【The invention's effect】
The present invention provides a stretched orthogonal nonwoven fabric in which only both ears are bonded, a stretched orthogonal nonwoven fabric obtained by bonding the stretched nonwoven fabric, and a production method thereof, and the production of post-processing by using the former stretched orthogonal nonwoven fabric. Speed and product quality can be improved.
That is, when the post-processing is the water jet method, processing can be performed with a low-pressure water needle, the line speed can be maintained, and the number of passes through the water needle can be reduced.
When post-processing is a needle punch method, the frequency with which the needle breaks can be extremely reduced, the line speed can be maintained, and the number of passes through the needle punch can also be reduced. In the case of needle punches, breaking the needle not only has a fatal adverse effect on productivity, but even a small part of the broken needle is not allowed to enter the product, so the needle will not break. Consideration is particularly important.
When the post-processing is the through-air method, it is possible to increase the bulk and to improve the entanglement, to maintain the line speed, and to reduce the number of times air is passed.
When the post-processing is a hot embossing method, the adhesiveness is improved, and the obtained product has a good appearance and texture.
In the case where the post-processing is an adhesive bonding method, the adhesiveness is good, the adhesive and the like are excellently absorbed, and the obtained product has a good appearance and texture.
When post-processing is the stitch bond method, it is the same as in the needle punch method.
When post-processing is the ultrasonic sealing method and the induction heating sealing method, it is the same as the case of the hot embossing method.
Further, it has become easy to produce a nonwoven fabric having a vertical / horizontal / vertical / horizontal / vertical web configuration, which has been difficult in the past.
Furthermore, according to the present invention, it has become possible to produce a thin and flexible artificial leather reinforced with a stretched orthogonal nonwoven fabric at a low cost.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing an example of a stretched orthogonal nonwoven fabric in which only both ears are bonded.
2A is a schematic side view showing an example of a manufacturing process of the stretched orthogonal nonwoven fabric shown in FIG. 1, and FIG. 2B is a plan view thereof.
FIG. 3 is a schematic side view showing an example of a production process of bonded stretched orthogonal nonwoven fabric.
FIG. 4 is a schematic side view showing an example of a manufacturing process of a stretched orthogonal nonwoven fabric bonded with another material.
5 is a schematic side view showing an example of excessive supply of stretched orthogonal nonwoven fabric in FIG. 4. FIG.
6 (A) is a partial side view showing another example of excessive supply in FIG. 5, and FIG. 6 (B) is a front view thereof.
[Explanation of symbols]
1 Horizontally stretched web
2,20 Vertical stretched web
3a, 3b bonding part
4a, 4b Ear gripping part
11a, 11b, 17a, 17b, 42a, 42b, 49a, 49b, 53a, 53b Nip roll
12, 31, 43 Laminated web
13a, 13b Ultrasonic oscillator horn
14 Receiving roll for ultrasonic seal
15a, 15b, 47 Score cutter
16, 48 slitter receiving roll
18a, 18b, 34, 50 Trimming edge
19 Stretched orthogonal nonwoven fabric with both ears bonded
32 Embossing roll
33 Embossing roll
35 Bonded stretched orthogonal nonwoven fabric
41 Card Web
44 Needle beam
45 Stripper plate
46 head plate
51 Stretched orthogonal nonwoven fabric joined with other materials
52, 54 other materials
61 Different diameter roll
62 shrink nonwoven fabric
63a, 63b, 64a Gear roll
65 Oversupply nonwoven fabric

Claims (11)

A stretched web in which a continuous body made of spun and accumulated long fiber filaments is stretched in a vertical direction, and a stretched web in which a continuous body made of spun and accumulated long fiber filaments is stretched in a horizontal direction, A stretched orthogonal nonwoven fabric, which is laminated so as to be orthogonal to each other and bonded only at both ears. The material containing the stretched orthogonal nonwoven fabric according to claim 1 comprises a water jet method, a needle punch method, a through air method, a heat embossing method, an adhesive bonding method, a stitch bonding method, an ultrasonic sealing method, and an induction heating sealing method. A stretched orthogonal nonwoven fabric formed by bonding using at least one means selected from the group. The stretched orthogonal nonwoven fabric according to claim 2, wherein the material including the stretched orthogonal nonwoven fabric according to claim 1 further includes a horizontal stretched web. The material containing the stretched orthogonal nonwoven fabric according to claim 1 includes at least one other material selected from the group consisting of a short fiber card web, a melt blown nonwoven fabric, a spunbond nonwoven fabric, a net, and a tow spread web. The stretched orthogonal nonwoven fabric according to claim 2. 5. The base fabric for artificial leather according to claim 4, wherein the other material is a web made of ultrafine filaments of polyester or polyamide. A stretched web in which a continuous body made of spun and accumulated long fiber filaments is stretched in a vertical direction, and a stretched web in which a continuous body made of spun and accumulated long fiber filaments is stretched in a horizontal direction, A method for producing a stretched orthogonal nonwoven fabric characterized by laminating so as to be orthogonal to each other and adhering only both ears. The method for producing a stretched orthogonal nonwoven fabric according to claim 6, further comprising slitting and removing the end side from the bonded portion of the both ears after the bonding of only the both ears, and then winding. The method for producing a stretched orthogonal nonwoven fabric according to claim 6, wherein an ultrasonic sealing method is used in an operation of bonding only the both ears. After obtaining a stretched orthogonal nonwoven fabric by the manufacturing method according to claim 6, the warp stretched web and the horizontally stretched web of the nonwoven fabric are a water jet method, a needle punch method, a through air method, a heat embossing method, an adhesive bonding method, A method for producing a stretched orthogonal nonwoven fabric, characterized in that bonding is performed using at least one means selected from the group consisting of a stitch bond method, an ultrasonic sealing method, and an induction heating sealing method. After obtaining a stretched orthogonal nonwoven fabric by the production method according to claim 6, the nonwoven fabric and at least one other material selected from the group of the following material A are combined and laminated, and at least one selected from the group of means B below A method for producing a stretched orthogonal nonwoven fabric, characterized in that, using a means, the warp-stretched web of the nonwoven fabric and the horizontal stretched web are joined to another material,
Material A: short fiber card web, melt blown nonwoven fabric, spunbond nonwoven fabric, net, tow spread web,
Means B: Water jet method, needle punch method, through air method, hot embossing method, adhesive bonding method, stitch bond method, ultrasonic sealing method, induction heating sealing method. 11. The entanglement with other materials is improved by supplying at least 10% of the stretched orthogonal nonwoven fabric at the time of composite lamination of the stretched orthogonal nonwoven fabric and another material. The manufacturing method of the extending | stretching orthogonal nonwoven fabric of description.

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