JPS63145462A - Silver surface like sheet like article and its production - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a grain-finished sheet material and a method for producing the same. More specifically, the present invention relates to a thin grain-like sheet material having a unique intertwined structure, being flexible, having good abrasion resistance, and having a surface with an unusual appearance, and a method for producing the same.

[Prior Art] Many artificial leathers with raised naps, silver-colored artificial leathers, and methods for producing the same have been proposed so far. In recent years, market demands have been changing toward more flexible, informal and thin products with unusual external dimensions.

However, these conventional techniques have the following drawbacks when attempting to make the device thinner.

For example, JP-A-58-191280, JP-A-59-4
The technique disclosed in No. 3158 is an excellent technique for use in medium-weight and thick materials with uniform surfaces. However, even if a fiber web such as a special composite fiber or ultrafine fiber is subjected to needle punching or high-speed fluid jet treatment as disclosed in the above-mentioned JP-A-Sho, the fiber web size is When the number of layers is lowered, the degree of entanglement in the thickness direction decreases, making it difficult to obtain a high degree of three-dimensional entanglement. Naturally, there was a technical limit to making the product flexible and thin without sacrificing its strength.

On the other hand, there has been proposed a method in which a vA knitted fabric is interposed in an inner layer or an outer layer, ultrafine fibers are laminated on the surface thereof, and the surface is subjected to needle punching or high-speed fluid jetting treatment to finish the surface with silver. Even in this technology, when thinning a sheet, the thickness of the sheet is increased by intervening a woven or knitted fabric,
Laminated ultra-fine fibers! 8 layers must be reduced,
A sufficient entangled structure is not obtained, resulting in a poor grain surface, and the tightness of the woven or knitted fabric is high, so the flexibility effect of the ultrafine fibers is not fully exhibited, resulting in a product with poor drapability.

In other words, in conventional methods, it can be said that it is a reasonably effective technology in the field of medium-sized and thick materials, but when thinning products, it lacks the balance between product strength and flexibility. The current situation is that the problem of imbalance has not been resolved.

[Problems to be Solved by the Invention] The present invention provides a silver-grained sheet product that solves the problem of imbalance between product strength, flexibility, and abrasion resistance caused by thinning. A manufacturing method is provided.

[Means for Solving the Problems] In order to solve the above problems, the present inventors have worked hard to solve the problems described above.
As a result of research, we have finally arrived at the present invention.

That is, the gist of the present invention is as follows.

(1) The non-woven fabric portion formed by intertwining of ultrafine fibers of 0.5 denier or less and the fibers forming the non-woven fabric portion are formed in the thickness direction of the seam 1-. ! (2) A grain-like sheet material, characterized in that at least the lunar surface of a fibrous sheet consisting of a knitted fabric-like loop portion formed by being drawn into a bundle has a grain-like surface.

(2) Fiber length 2 consisting of at least two or more types of polymers
A thinning-type composite fiber of between 0 and 150ITllT1 is made into a web, and then the web is passed through a knitting machine having a stitch yarn guide needle to form a composite fiber having a structure in which a nonwoven fabric-like portion and a knitted fabric-like loop-like portion are intertwined. (a) A method for producing a grain-like sheet material, which comprises processing a fabric having a F-woven structure by combining at least the following steps (a) to (b).

(stomach). A process of entangling a composite fabric structure by needle punching or spraying high-speed fluid.

(B). A process of thinning the thinnable composite fiber by melting, heat treatment, or mechanical treatment, or by combining them together.

(2) A step of embossing or pressing the surface of the non-woven F-shaped part and/or the surface of the I-L knitted loop-shaped part.

The present invention will be explained in detail below.

The fibers constituting the sheet-like article of the present invention are those obtained by using thinnable conjugate fibers made of at least two or more fiber-forming polymers.

The term "thintable conjugate fiber" used in the present invention refers to a conjugate fiber that can be made into a cylindrical shape by a solvent, heat treatment, or mechanical treatment. These thinnable composite fibers can be obtained using known composite spinning techniques.

Figures 1 to 5 show a thinning type composite g used in the present invention.
i! ? Although a specific conceptual diagram of lt has been shown, the present invention is not limited to these. As for the means for manufacturing these thinnable composite fibers, for example, sea-island type composite fibers have a cross section in which component A is continuously and regulatedly distributed in the fiber axis direction in component B as shown in Fig. 1. can be obtained using a polymer phase q-array fiber spinneret. In addition, as shown in Fig. 2, in the case of a composite fiber having a cross section in which component B further surrounds a sea-island structure in which component A is continuously arranged in a regular LD in the fiber 1tlN1 direction, Kaisho 54-125
It can be obtained by using the island-in-the-sea type multicomponent fiber spinneret disclosed in No. 718. In addition, as a modification of this method, composite fibers having a cross section as shown in Fig. 3 can be produced by introducing the flow of component A and component C into a static mixer as described in Japanese Patent Publication No. 53-36182, and moving the composite fiber horizontally in a sea-island type. It can be produced by a method of further coating with component B.

A, B or C constituting the above-mentioned thinnable composite fiber
The following fiber-forming/gate polymers are used as components. For example, polyamides such as nylon 6.12.66 and other copolymerized nylons, polynisdels such as polyethylene terephthalate and its copolymers, polyethylene terephthalate and its copolymers, polyolefins such as polypropylene and polyebrene, polyacrylonitrile, All 1ifs such as polyurethane, polyvinyl alcohol, copolymerized polyvinyl alcohol, polystyrene and other copolymers, hot water soluble polyester, hot water soluble polyamide, polyphenylene sulfide, etc.
A t-forming polymer is used.

The combination U may be selected by considering solubility in a solvent, peelability by heat treatment, mechanical treatment, splitting property, etc. For example, in Figure 1, the A/B components are polyethylene terephthalate/polystyrene, polyethylene derephthalate/hot water soluble polynisdel, and in Figures 2 and 3, the A/B/C components are nylon-6.
/bolinethylene/co-Φpolysbrene, polyethylene walphthalate/polysbrene/hot water soluble polyester The folding component and the C component may be the same component. In Figures 4 and 5, the A/B components are (i) polyethylene terephthalate/nylon-6, nylon-6/borisdyrene, and in Figure 6, the A/B components are nylon-6.
Examples include, but are not particularly limited to, polyethylene, polyethylene, polyethylene, polyethylene, and the like. The thickness of ultrafine fibers obtained by thinning these thinnable composite fibers must be 0.5 denier or less, preferably 0.3 denier or less. If fibers thicker than this are used, even if a silver surface is formed, the surface will be inferior in smoothness and density (↑1), and will lack flexibility.

The ultrafine fibers forming the fibrous sheet of the present invention are formed from the remaining components after the thinning process of Koki's thinning conjugate fibers is carried out. For example, the above-mentioned figures 1, 2, 3, and 6
In the polymer combination shown in the figure, the A component becomes the remaining component, and in FIGS. 4 and 5, depending on the A component or the combination of polymers, both the A and B components become the remaining components.

The unique intertwined structure of the grain-like sheet material of the present invention, which is prepared using this thinning-enabled composite w4M, will be explained in more detail.

FIG. 7 is a cross-section of a composite fabric structure used to obtain the silver-grained sheet material of the present invention. This composite fabric is a thinning type composite fiber in which each fiber forming the fabric has a cross section as shown in FIGS. 1 to 6.

Even if two or more types of fibers are mixed in consideration of solvent solubility, peeling and splitting properties by heat treatment or mechanical treatment, the 15-woven fabric of the present invention will not be impaired.

In Figure 7, the surface viewed from the X direction has a non-woven fabric-like surface as shown in Figure 9, and the surface viewed from the X' force direction has continuous knitted fabric-like loops in one direction as shown in Figure 8. It has a shaped surface. In other words, the conventional needle punch or high-speed fluid 191 destination J! 1! The confounding depiction obtained in this method is a highly advanced three-dimensional confounding structure. Therefore, it is not just a non-woven fabric or a simple knitted fabric, but a thinning-type composite fiber that forms a non-woven Tri-shaped intertwined part on one side, and a same-gli navy blue fabric that forms a non-woven tri-shaped intertwined part. , which is substantially drawn into a bundle in the thickness direction, and forms a knitted loop-like intertwined part on the other side,
These are three-dimensionally inseparable and intertwined, forming a unique composite 41i fabric.

Therefore, the grain texture of the present invention is obtained by subjecting a sheet-like material obtained by making the thinning compound fibers forming and covering the textile structure into ultra-fine fibers by solvent, heat treatment, or mechanical treatment to the grain finishing treatment described below. C1-Personal items are just non-woven items
Because it has a knit-like loop entanglement rather than a structure, it is flexible and can be made into a product. It is easy to imagine that by reducing l to 1 [4:1], it is possible to make the material thinner and to generate an informal appearance pattern consisting of a knitted loop pattern and a grain pattern.

When the polymeric elastic material is attached to such a basic structure, it is particularly preferable that the polymeric elastic material is present at least on the surface and in the vicinity of the surface and in the voids inside the sheet. In particular, it is preferable that the polymeric elastomer be present in a form surrounding the ultrafine fibers or a bundle of ultrafine fibers, since this does not impair the flexibility of the sheet-like material. Examples of the polymeric elastomer include, but are not limited to, polyurethane elastomer, acrylic[1 nitrile-butadiene rubber, butadiene rubber, natural rubber, polyvinyl chloride, polyamide, etc. Among these, polyurethane is preferably used from the viewpoint of grain surface formation properties, elasticity, flexibility, ease of handling, etc. of the sheet obtained as a final product. According to the manufacturing method of the present invention, it is possible to easily achieve thinning, and it is also possible to manufacture a medium-thick sheet that can be manufactured using conventional techniques. For example, this can be achieved by laminating at least two or more sheets of the composite ``Yomizo Pickles'' shown in FIG. Laminating the surfaces of Figures 8 and 9 together, or laminating fibers of any thickness on the surfaces of Figures 7, 8, or 9), needle bumps, or high-speed fluid jetting. It is possible to form a thick sheet by using entangling means such as applying treatment.The fibrous web that can have an arbitrary thickness is a thinning type composite fiber web, a long fiber web of 0.5 d or less, or a melt web L1- In other words, the grain-like sheet material of the present invention has a basic structure of a fibrous sheet made from a composite fabric structure as shown in FIG. The basic structure may be retained within the sheet.

Next, the method for manufacturing the grain-finished sheet material of the present invention will be explained below.

For example, as shown in Fig. 1, thinning composite fibers with a fiber cross section of 20 mm or more and 150 nm or less are cut into stable fibers, which are bound open cotton, carded resin [1
Pass through Slapper M/C to form a web.

The web is passed through a sewing and knitting machine having Stellagoo yarn guide needles arranged 8e at equal intervals in the H7C width direction.

In principle, the Sudetsu Churn Guide Needle referred to here means that the tip of the needle extends up to a groove similar to that of a generally known bellows needle.
It is something to do. Therefore, from the side of the web to the 7th side of the web.
The needle penetrates in the direction 9 and catches the web-forming fibers substantially in a bundle at a certain depth and is again pulled in the same direction to form a loop.

The needle passes through this old loop again in the thickness direction, catches the web-forming SJ4 navy blue as a bundle at a certain depth, and is pulled through the old loop again to form a stitch. do. Since this operation is repeated in the entire width direction of the sewing and knitting machine, a continuous knitting-like loop-like part shown in FIG. A nonwoven fabric-like portion is formed. As a binding, it is possible to obtain a composite fabric groove, as shown in FIG. 7, which has an intertwined structure that is neither simply nonwoven nor knitted. In this process, if the fiber length of the thinning type fiber is less than 2On+m, breakage will occur during web formation, uniform mesh (=J) will not be obtained, and a strong composite fiber (i.e. It is difficult to obtain a fabric.Also, the fiber length is 15
If the length exceeds 01T1m, the weaving cord will be too long when passed through the knitting machine, and the resistance when pulling the fibers in the thickness direction of the fabric will become too strong, resulting in fiber movement. However, it is difficult to obtain a uniform composite fabric structure due to unevenness in the lateral direction of the fabric.・After passing through the cross-lapper HIC, it may be slightly needled using a blur punch (L/C) in order to maintain the shape of the web.However, in this case, the thread density is 100 threads/ml.
Hereinafter, it can be said that it is preferable to keep the number of fibers to 50/- or less from the viewpoint of smooth movement of the fibers.

The attenuated surface of the composite fabric structure thus obtained is sprayed with a needle bump or a high-speed fluid stream to form V1 fissures of the eight components of the attenuable fibers and fibrillation entanglement of the exposed ultra-m fiber bundles of the A component. After that, component B is dissolved and removed using a liquid that is a solvent for the 8 components and a non-solvent for component A, and then at least the moon surface is embossed or pressed to form the silver of the present invention. It is made into a sheet-like material with a textured surface. Alternatively, the composite fabric structure can be treated with a liquid that is a solvent for the B component and a non-solvent for the A component.
Component B is dissolved and removed, and then at least one side is embossed or pressed to obtain the silver-finished sheet material of the present invention.

In these methods, the step of dissolving component B and the embossing or pressing step may be reversed. Further, a step of dissolving and removing the B component may be added before further processing by needle punching or jetting high-speed fluid flow. Also, before or after embossing or pressing, or before or after dissolving and removing component B, an elastic polymer is applied, and the elastic material is applied around the fibers of component A or the fibers by wet coagulation or dry coagulation. It is possible to combine the steps given.

When needle punching or high-speed fluid spraying treatment is performed, it is preferable to use conditions such as the one shown in FIG. 8 in which the knitted fabric-like loop entanglement is not cut.

For example, in the case where the entanglement process is performed from the non-woven fabric-like part shown in FIG. 9, and the case where the entanglement process is performed from the knitted fabric-like loop-like part shown in FIG. 8, the needle depth and $ It is preferable to appropriately change the 1 density and appropriately change the high-speed fluid injection pressure in the case of high-speed fluid injection.

Usually 100 to 3000 when using a needle punch
wood/ml, 10 to 300 kg/ml when using high-speed fluid
A range of about ml is preferable.

As the fluid used for the high-speed fluid, it is preferable to use water due to its safety and ease of handling, cost, etc.
Thinning type composite! Depending on the polymer combination of Ali Ilt or the purpose, an aqueous solution of a solvent, an alkali, an acid, etc. may be used. These treatments bring about more advanced three-dimensional entanglement of the sheet-like material of the present invention, and are effective in improving product strength and abrasion resistance. Bundle formation increases the covering fiber density,
Embossing also has the effect of forming a good grain surface after 1.1 press processing.

During these main processes, the usual artificial skin IJ1 manufacturing technology,
For example, there is nothing wrong with applying a shape-retaining agent such as polyvinyl alcohol to the composite 45-woven structure prior to shrinkage treatment or thinning treatment.

In addition, it is preferable to perform a napping treatment on one side that has not been subjected to grain processing, and to make the sheet-like product of the present invention into a reversible product, with the second side having a silver finish and the other side having a suede finish with napping. . This step is preferably carried out before or after the embossing or pressing step or after dyeing.

The conditions for stamping or pressing can be determined based on the characteristics of the fiber material or the polymeric elastomer material to be coated.
There are no particular restrictions. Usually at a temperature of 100°C to 250'C,
Perform under pressure conditions.

The grain-like sheet material of the present invention obtained as described above is subjected to high-order processing such as finishing resin coating treatment, dyeing treatment, water repellent treatment, and rubbing treatment to improve its quality and increase its commercial value.
It can be widely applied to various applications such as clothing, shoes, materials, etc.

EXAMPLES The present invention will be explained in detail below using Examples, but the present invention is not restricted or limited by these Examples. Rather, it brings about the next application development.

[Example] Example 1 In order to form a thinnable composite fiber having the fiber cross section shown in FIG. 1, a polymer interlayer fiber spinning die was used,
Spun using nylon-6 as the A component and hot water soluble polynisdel as the B component, with an A/B component ratio of 63/37.
m fa%, the number of fibers making up the A component is 223, the fiber denier of one A component is approximately 0.014d, composite! li fiber denier 5. A polymer phase υ array fiber yarn having a fiber length of about 51 mm and a tan wire number of about 10 threads/in was prepared.

This raw cotton was made into a web through the steps of opening, carding, and slapping + slapper. Next, we installed a Mari-7 type sewing and knitting machine with a thread guide (stitch length 1.5 nm).
, gauge 18 mm>, and processed at a speed of 1.2 m.

The resulting composite A-shaped non-woven rli-shaped surface of the pickled vegetables was cut into a diameter of 0.
A columnar hot water stream is sprayed at a pressure cuff of 0 kg/cJ from a spray nozzle with 1 mm holes arranged in a row at 0.6 mm intervals, and then dried to produce a sheet with a weight of 175 g/m. This sheet-like material was embossed at 150° C. using an embossing roll engraved with leather-like grain. In the 1q sheet-like product, a grained surface is formed on the intertwined layer of fibrillated and entangled ultrafine fibers and ultrafine fiber bundles, and the ultrafine fibers and ultrafine fiber bundles are drawn in the thickness direction of the sheet. It was a flexible, thin, grain-like sheet material having a lunar mesh pattern in which the knitted fabric-like loop portions were substantially bundled and inseparably integrated.

Example 2 An island-in-the-sea multicomponent type IAl1 miscellaneous spinneret disclosed in Japanese Patent Application Laid-open No. 54-125718 was used to form a thinning conjugate fiber having a fiber cross section as shown in FIG. A
The component is polyethylene terephthalate, the C component is hot water soluble polyester, and the C component is polystyrene, and the (A+B>/B component ratio is 501500150 wood/C
The component ratio is 60/40%, the number of fibers composed of A and C components is 16, of which 8 are A component, and the fiber denier of one A component is approximately 0.007 d. A, B, C
The composite fiber denier of the component is approximately 3. A raw cotton having a fiber length of about 3 mm and a ribbon shrinkage of about 811+/in was prepared.

This raw cotton was passed through a cotton opening machine, a card, and a cross wrapper to create a web. Next, the composite Tli fabric structure was passed through the sewing and knitting machine used in Example 1 under the same conditions.

Next, the non-woven A+I-shaped surface was needle-punched to a density of 11, 700 wood/- to give a fabric weight of 2109/Tr1.
I got a C of 2. Soak the resulting sheet in hot water,
Nipping was repeated, and component C was dissolved and removed at the same time as the shrinkage treatment, followed by drying. Next, the sheet surface on which the nonwoven fabric-like portion was to be formed was subjected to columnar water jet spray treatment using ordinary water under the same conditions as in Example 1, and then dried.

59/1T12 using a gravure coater to apply a two-component polyurethane solution onto the sheet surface that has been subjected to water jet treatment.
It was coated and embossed at 160°C with an embossing roll engraved with leather-like grain. Thereafter, component C was dissolved and removed using trichlorethylene and dried. This sheet was rubbed with a liquid stream for 45 minutes at 100'C in a circular dyeing machine.

The obtained sheet-like material is fibrillated and entangled ultrafine iAI.
A silver surface is formed on the surface of the part where iMt and the ultrafine fiber bundle are intertwined, and the ultrafine fibers and the ultrafine fiber bundle are drawn to the center in the thickness direction of the sheet, substantially forming a bundle and intertwining with the knitted fabric-like loop layer. Thinned silver that is flexible and can be used as a reversible material with an excellent touch on the back side It was a sheet-like material with a textured surface.

Example 3 Using the same composite fabric structure as created in Example 2, the knitted fabric-like loop-shaped partial surfaces were combined and laminated, and the needle density was 10.
Needle punching was performed so that the result was 00 wood/-. The obtained sheet was repeatedly dipped and nipped in hot water, and at the same time as the shrinkage treatment, component C was dissolved and removed and dried. Next, one side of the sheet was subjected to a columnar water jet spraying treatment under the same conditions as in Example 2, followed by drying. DMF polyurethane having a solution concentration of 8% was impregnated from the opposite side of the sheet surface to which the water jet treatment had been performed, and wet coagulation was performed. Place this sheet in hot water.
1() After treatment with molten tlX, it was dried. Next, a two-component polyurethane solution was applied using a gravure coater at 4 g/Tn2 on the sheet surface that had been subjected to the water jet treatment.
The Bogo-like grain was embossed to the right at 60°C. Then, the C component was dissolved and removed using trichlorethylene and dried.

Next, the side that had not been embossed with the embossing 1'' ring was subjected to a napping treatment using a sandpaper buff H/C. After that, dye it with a circular dyeing machine for 120'C160 minutes using a blue disperse dye! 1ul! I did it.

The jqed grain-like sheet material is three-dimensionally composed of an entangled portion formed by ultrafine fibers and ultrafine fiber bundles and a knitted fabric-like loop portion formed by the fibers being drawn in the shear direction of the sheet. Suede with a grain structure in which polyurethane is arranged around the ultra-fine fibers and the ultra-11I fiber navy blue bundle inside the sheet, and the entangled basic structure is inseparably integrated, and one side is raised. It was a silver-like sheet material dyed in a blue color with excellent flexibility and a texture-like appearance and taps.

Comparative Example 1 A web was prepared from the thinning-type composite fiber raw cotton used in Example 2 through the steps of opening machine, carding, cross-wrapping, and pre-punching H/C. This f-web has a button density of 700/
Perform needle punching to obtain 220g basis weight.
/m2 sheet was obtained. Next, it was passed through hot water to perform a shrinkage treatment and to dissolve and remove the B component at the same time, followed by drying.

Processing was carried out in the same manner as in Example 2, using salt 1 flame. Since this processing method only involves entanglement using needle punches and does not have a unique entangled structure, and because the basis weight is low, the dimensional stability during the above-mentioned hot water treatment is poor.
Uniform polyurethane removal properties were poor.

The obtained product was a thinned, grain-like sheet-like product, but compared to Example 2, the product had poor strength, appearance, and quality.

Comparative Example 2 The thinnable composite fiber used in Example 1 had a fiber length of 10 mm.
The raw cotton cut to 190+nm was then processed. These two types of raw cotton were passed through a cotton opening machine, a card, and a cross wrapper) 1/C to create a web. Raw cotton with a fiber length of 10 mm is
1 Noeb breakage occurred at the exit of the 1-slapper H/C, resulting in an uneven web, and processing was subsequently discontinued.

A uniform web was obtained when the fiber length was 190 mm. This web was threaded through the same stitches as in Example 1 and in A1. Because the fiber length is too long, the handleability with the step guide needle deteriorates, and the knitted fabric-like loop protrusion becomes uneven, horizontal steps appear on the sheet, thickness unevenness, and [1] unevenness occur, resulting in a uniform composite fabric. 1 structure! ? I couldn't. Thereafter, the same processing as in Example 1 was carried out using this composite colored fabric W1&.

The obtained product was inferior in quality to that of Example 1, with uneven thickness and grain spots in the lateral direction.

[Effects of the Invention] The grain-like sheet material of the present invention has the following effects in view of its manufacturing method:
Because ultra-fine fibers and ultra-fine fibers have an unprecedented three-dimensional entangled structure, they are flexible and can be made thinner than the limits of conventional technology while maintaining product strength and abrasion resistance. be.

Furthermore, based on this basic structure, the thickness can be freely adjusted by combining the laminating means of the scale, making it possible to adjust texture, touch, color development, heat retention, breathability, water absorption, etc. It is.

Furthermore, since it has greater elasticity in the horizontal direction than in the vertical direction, it is preferable for applications that particularly require elasticity in one direction. By combining the napped treatments, it is possible to obtain a reversible grain-like sheet material in which the negative side has a grain-like appearance and the other side has a napped effect. If a silver surface is formed on the knitted fabric-like loop-shaped portion, it is possible to create an informal appearance quality created by the stitch pattern and grain. Of course, even when not used on the silver surface, it is possible to produce a well-tapped pattern with ultrafine fibers formed on the collecting surface.

[Brief explanation of the drawing]

Figures 1 to 6 are cross-sectional conceptual diagrams of one thinnable W'I composite fiber used in the present invention, and Figure 7 is a composite Irj fabric +t4 for obtaining the grain-like sheet material of the present invention. A cross-sectional view of the structure;
Fig. 8 is a partial surface view of a knitted fabric-like loop forming one side of the composite fabric structure, and Fig. 9 is a partial surface view of the composite 45 fabric IMB of Fig. 8.
FIG. 2 is a partial surface view of a non-Iif-Ii-shaped portion forming the opposite side of the object. A: A component B: B component C: C component X: Non-woven h-shaped surface Figure 3 Figure 6 Figure 7V11 Figure 8 Figure 9 3.1 Relation to the case of a person who engages in tampering Patent applicant address: 2-2-1 Nihonbashi Sakucho, Chuo-ku, Tokyo @ 1982
9 "February 24th (Delivery El > 51. Part 1 of the brief explanation of the drawings" in the statement of the details subject to amendment. Yes. Yes.

Claims (2)

[Claims] (1) A knitted fabric-like loop formed by a non-woven fabric-like part formed by entangling ultrafine fibers of 0.5 denier or less and the fibers forming the non-woven fabric-like part being pulled out into a bundle substantially in the thickness direction of the sheet. 1. A grain-like sheet material, characterized in that at least one side of a fibrous sheet comprising a grain-like surface has a grain-like surface. (2) Fiber length 2 consisting of at least two or more types of polymers
A thinning type composite fiber of 0 mm or more and 150 mm or less is made into a web, and then the web is passed through a knitting machine having a stitch yarn guide needle to produce a composite fabric having a structure in which a non-woven fabric portion and a knitted fabric-like loop portion are intertwined. 1. A method for producing a grain-finished sheet material, which comprises forming a structure and then processing it by combining at least the following steps (a) to (b). (stomach). A process of entangling a composite fabric structure by needle punching or spraying high-speed fluid. (B). A step of thinning the thinnable composite fiber by melting, heat treatment, mechanical treatment, or a combination thereof. (c). A step of embossing or pressing the surface of the nonwoven fabric-like part and/or the surface of the knitted fabric-like loop part.