JP4804288B2 - Nonwoven fabric that is effective for tiling - Google Patents

Description

In the method of applying mortar to the concrete surface when applying tiles to the concrete surface, the present invention is for fiber planting in order to strengthen the space between the base mortar and the applied mortar and prevent the attached tile from falling. using the tiles pasted such as those related to valid non-woven cloth.

  Conventionally, when tiles are attached to a concrete surface, it is a common method to apply a base mortar to the concrete surface and attach the tiles using the adhesive mortar on the base mortar. However, with this conventional method, the adhesion between the concrete and the base mortar is insufficient, and there are many cases of peeling and peeling at this interface, and the surface of the base mortar is flat. Insufficient strength often caused tile peeling and falling.

  Therefore, in order to increase the adhesive strength between concrete and ground mortar, and to ensure sufficient adhesion strength between ground mortar and pasting mortar, the surface of the concrete is provided with irregularities, the surface is roughened, and a water absorption adjusting agent is applied. However, none of these methods can secure a sufficient adhesive force, and it has not been possible to reliably prevent peeling or peeling.

Further, it has been proposed to embed a non-woven fabric on the surface of the base layer in order to increase the adhesion strength between the base layer and the pasting mortar, and to interpose the nonwoven fabric at the interface between the base layer and the pasting mortar (for example, Patent Document 1). This method requires a work for uniformly embedding the nonwoven fabric in the surface of the underlayer, and it is difficult to take much time. Therefore, to improve these, after applying the base mortar on the concrete surface, embed a bundle of linear bodies into the base mortar, project a part of the bundle on the surface, and stick the protruding linear body firmly on the mortar Fill and paste onto the base mortar and paste the tiles through the mortar (see, for example, Patent Document 2) and leave the fibers of the nonwoven fabric on the concrete surface, and after adjusting the surface, apply the base mortar, etc. It has been proposed to embed fibers in mortar to strengthen adhesion (for example, see Patent Document 3).
Japanese Examined Patent Publication No. 2-61584 Japanese Patent Laid-Open No. 5-141069 JP 2006-169945 A

However, although the tile attaching methods according to each of the above proposals are effective as they are, there are still some aspects that are not enough to embed the fibers in the mortar and strengthen the adhesion.
Therefore, the present invention corresponds to these current situations, and in particular, by finding a nonwoven fabric for planting suitable fibers for strengthening the space between the base mortar and the pasting mortar, between the mortar and the pasting mortar. The purpose is to more firmly join, and the mortar sufficiently penetrates to the tile surface to ensure the prevention of falling of the attached tile.

That is, the non-woven fabric of the present invention that meets the above-mentioned purpose is basically a plurality of uniaxially stretched multilayer tapes that are uniaxially stretched in a raw film in which a plurality of polyolefin resin films are laminated, and then cut into a required width along the stretch direction. The weight per unit area is 20 g / m ² to 200 g / m, in which two layers are laminated in parallel at regular intervals and are laminated so as to be orthogonal to the length direction of the tape, or the uniaxially stretched multilayer tape is woven vertically and horizontally. It is an effective nonwoven fabric for use in, for example, affixing tiles composed of a laminate obtained by laminating polyolefin short fiber layers and joining them by needling, using a sheet-like material in the range of ² as a base material.

The invention according to claim 2 is a specific form of the present invention, wherein a uniaxially stretched multilayer tape formed by uniaxially stretching a plurality of laminated polypropylene resin films and then cutting to a required width along the stretching direction is longitudinally formed. , The weight per unit area is 20g / m. ² ~ 200g / m ² A laminate in which a polypropylene short fiber layer is laminated and bonded by needling using the sheet-like material as a base material, and the number of polypropylene short fibers passing through the base material made of the polypropylene sheet-like material is 10 / cm. ² ~ 150 / cm ² The peel strength between the substrate and the short fiber layer is 0.1 N / 5 cm to 2.0 N / 5 cm, and the air permeability of the laminate is 0.1 cm. ^Three / Cm ² ・ S ~ 30cm ^Three / Cm ² Features a configuration that is S.

  In the third aspect, the short fiber fineness of the polyolefin short fiber layer used in the above configuration is in the range of 5 dtex (dtex) to 50 dtex (dtex), and the basis weight of the short fiber layer is 20 g / m. ² ~ 100g / m ² It is the range of these.

  When tiling using the nonwoven fabric of the present invention, short fibers that penetrate from the base material by needling to the surface of the base mortar protrude like hair and adhere the pasting mortar to paste the tile on the surface. The base mortar and the pasted mortar are firmly bonded to each other by the anchoring effect, and as a result, peeling of the pasted tile is remarkably reduced. At this time, the polyolefin resin base material constituting the base material of the nonwoven fabric of the present invention has water repellency and almost no air permeability and water permeability. Improves solidification and moderate adhesion to mortar to facilitate peeling.

In particular, the basis weight of the short fiber layer enhances the compatibility with the base mortar, and the number of short fibers penetrated is related to the degree of bonding between the base mortar and the pasted mortar, and the adhesion between the base and the short fiber is improved. The peel strength between the layers is related to the handling properties during installation and the peeling of the base mortar and base material after the installation and the residual short fibers. The short fibers penetrate the surface of the base mortar and the base mortar. When the short fibers remaining on the surface are properly aligned and the short fibers on the surface of the base mortar are bonded to the pasted mortar, the adhesion between the two is strengthened, and the remarkable effect of reliably preventing the tile from falling is obtained. The same effect is also obtained when wall coating, plaster coating or the like is applied to the concrete surface.

  Hereinafter, specific embodiments of the present invention will be described.

The present invention non-woven fabric is a non-woven fabric used to firmly bond between the base mortar and the applied mortar in the method of applying mortar to the concrete surface when a tile is applied to the concrete surface, and particularly embedded in the base mortar, Substrate that constitutes a nonwoven fabric and short fibers that are physically bonded as a suitable condition for firmly bonding the base mortar and the adhesive mortar by filling the fiber protruding on the surface with the adhesive mortar for attaching the tile A polyolefin resin base material and a polyolefin short fiber are used for the layer, both are formed into a nonwoven fabric by physical bonding, and the number of short fibers penetrating from the substrate in the nonwoven fabric is 10 / cm ^{2 to} 150 / cm ² . The peel strength between the substrate and the short fiber layer is in the range of 0.1 N / 5 cm to 2.0 N / 5 cm. And in which air permeability comprise a respective requirements in the range of ^{0.1 cm 3 / cm 2 · S} ~30 cm 3 / cm 2 · S. Here, the raw material of the nonwoven fabric is limited to polyolefin resin, and both the base material and the short fiber are polyolefin-based, generally polypropylene resin or polypropylene fiber . This is because the cement component exhibits alkalinity, not preferred weak polyester resin in an alkali, thus strongly alkaline, using a polyolefin is the preferred fiber resin cement.

  The nonwoven fabric of the present invention is a laminate in which a polyolefin short fiber layer is first laminated on a base material made of the above polyolefin resin, and a part of the short fibers are penetrated and integrated with the base material by a needle punch and physically joined. And The polyolefin resin base material has no breathability and water permeability, is weak in adhesion to the mortar, and is preferably easy to peel off, and can be a film made of polyolefin resin. Uniaxially stretched multilayer tapes prepared by stretching the anti-film 3 to 10 times and cutting to a width of 2 to 7 mm along the stretching direction are arranged in parallel at a certain interval so that the longitudinal direction of the tapes are orthogonal to each other. A sheet-like material using a split tape that is laminated in two layers or woven with the above uniaxially stretched multilayer tape longitudinally and laterally and crimped is suitable.

Similarly, the raw film in which the first polyolefin resin layer and the second polyolefin resin layer are laminated by known extrusion molding is split using a splitter in a staggered pattern in the vertical direction (splitter treatment) or heated. A uniaxially stretched split fiber in which trunk fibers are arranged in a substantially vertical direction by slitting with a blade to form a large number of parallel slits and widening the original film on which the slits are formed in a direction perpendicular to the slit direction. It is also possible to use a sheet-like material obtained by obtaining a film and superimposing and heat-sealing two uniaxially stretched split fiber films so that the trunk fibers are orthogonal to each other.

A product obtained by laminating, weaving and fusing polyolefin fiber fibers stretched and reinforced as described above is called “Wariff”, and such “Wariff” is usually used as a base material in the present invention. . Then, in the substrate, the weight per unit area, thickness is related to needling and handleability, the basis weight is preferably in a range of ^{20g / m 2 ~200g / m 2} . When the weight per unit area is less than 20 g / m ² , the workability when the short fiber layer is laminated and needle processing or the like is performed is inferior and the productivity is deteriorated. In addition, it is not preferable because a non-woven fabric is peeled off when the base material is peeled off after the non-woven fabric is applied to the cement.

When the weight per unit area exceeds 200 g / m ² , the base material is too thick, and the workability when the short fiber layer is laminated and needle processing or the like is performed is inferior, resulting in poor productivity. Moreover, since the handling property in the case of constructing and arranging a nonwoven fabric on cement is poor and the construction and arranging properties are deteriorated, it is not preferable. Further, the thickness of the substrate is not particularly limited, but generally a range of 0.05 mm to 0.5 mm is suitable. When the thickness is less than 0.05 mm, even when the weight per unit area is 20 g / m ² or more, when the short fiber layer and needle processing are performed, tearing tends to occur and there is a problem in workability. If the weight exceeds 5 mm, needle processing with the short fiber layer is difficult even when the weight per unit area is 100 g / m ² or less, and it is difficult to handle and dispose the nonwoven fabric. It is not preferable.

On the other hand, is laminated on the base material, the short fiber layer that is physically joined to the substrate in needling the same substrate so embedded in the mortar, the alkali resistance of the fibers better, so this polyolefin short fibers also, in particular polypropylene Short fibers are used. This short fiber layer is bonded to the base material, and a part of the short fiber layer is embedded in the base mortar, and the short fiber needs to protrude from the mortar. Therefore, the basis weight, the fineness of the fiber, and the fiber length are related. come.

The basis weight, but not good even though many fibers number, related to the ^{fineness, 20g / m 2 ~100g / m} 2 are preferred. If the basis weight is less than 20 g / m ² , spots are likely to occur during carding, and it is difficult to connect the web, so that only a fiber layer with many spots can be obtained. If it exceeds 100 g / m ² , the mortar of the base mortar is likely to penetrate because there are a lot of short fibers, and therefore the surface strength of the base mortar is not obtained, which is not preferable.

  In addition, the fineness of the fibers constituting the short fiber layer is reduced when it is thin, so that the familiarity with the mortar is deteriorated. On the other hand, although it is thick and low, the number per basis weight is reduced, so 5 dtex. The range of ˜50 dtex (dtex) is suitable, and if the fineness is less than 5 dtex, the fibers are weak, so that only the surface is not put in the cement of the base mortar, and it cannot be adhered to the base mortar. The adhesive strength of the mortar is not effective. On the other hand, if the fineness exceeds 50 dtex, the production of the web is difficult and the number of fibers decreases, so that the effect of improving the adhesive strength with the mortar is not preferred. Furthermore, although the fiber length of the fiber which forms the said short fiber layer is normal 50-90 mm, it is related with the short fiber penetrated from a base material by needle processing, and is related with the carding property and the number of entangled fibers.

  Thus, the polyolefin short fiber layer is laminated on the above-mentioned base material made of polyolefin resin, and physically joined by needle processing to create the nonwoven fabric of the present invention. At this time, the needle direction of the needle is based on the short fiber layer. Short fibers are removed from the substrate through the material, and a clustered layer of short fibers penetrating the surface is formed. In addition, by performing needle processing on a base material having no air permeability and water permeability, appropriate air permeability and water permeability are imparted to improve the solidification of the mortar, and the adhesiveness with the mortar is appropriately peeled off. In particular, the basis weight of the short fiber layer and the number of short fiber penetrations are related to the base mortar, and the degree of firmness between the base mortar and the pasting mortar is determined by the number of penetrations.

The basis weight of the short fiber layer is related to the compatibility with the base mortar, and the peel strength (N / 5 cm) between the base material of the nonwoven fabric and the short fiber layer is the handling property at the time of installation and after the installation. It relates to the stripping of the base mortar and the base material and residual short fibers. Among these, the number of fibers is important for strengthening embedding in the affixed mortar, and the number of short fibers penetrated is preferably in the range of 10 fibers / cm ^{2 to} 150 fibers / cm ² . When the number of short fibers penetrated is less than 10 / cm ² , the adhesive strength after the mortar is affixed to the base mortar becomes weak because the number of short fibers is small, and the effect of the short fibers is poor. If it exceeds cm ² , the number of fibers is large, so that the compatibility with the applied mortar becomes worse and joint spots tend to occur.

  On the other hand, the peel strength between the substrate and the fiber layer is preferably in the range of 0.1 N / 5 cm to 2.0 N / 5 cm. When the peel strength is less than 0.1 N / 5 cm, the adhesion between the base material and the short fiber layer is insufficient, and the short fiber layer is easily peeled off from the base material at the time of installation and the handling property is lacking. In addition, it is not preferable that the base mortar is poured because the base material easily peels off or shifts and becomes non-uniform. When the peel strength exceeds 2.0 N / 5 cm, it becomes difficult to peel off the base material after the short fiber layer is fixed to the base mortar, and the base material peels off. Even if the base material is peeled off, the short fibers are finely cut and only the short fibers are short from the base mortar, and even if the pasting mortar is applied, the adhesive strength with the base mortar becomes weak, which is not preferable.

Still more aeration amount other requirements of the nonwoven fabric, the ventilation amount is preferably in the range of ^{0.1 cm 3 / cm 2 · S} ~30.0 cm 3 / cm 2 · S. If the air flow rate is less than 0.1 cm ³ / cm ² · S , there is a high possibility that the water will not drain well after pouring the base mortar and the cement will not be solidified, while the air flow rate is 30.0 cm ^3. When exceeding / cm ² · S , when the base mortar is poured, the cement particles easily flow out, the short fiber layer on the base material side is fixed with cement, and it becomes difficult to peel off the base material. The short fibers are cut finely so that only the short fibers are short from the base mortar, and even if the pasting mortar is applied, the adhesive strength with the base mortar is weak. Next, the use of the nonwoven fabric of the present invention having the above-mentioned requirements for applying tiles will be described. First, the base mortar is poured into a wooden frame to make a wall or the like with the mortar. The nonwoven fabric of the present invention is pasted. In this case, the base mortar is created by flowing the mortar through the wooden frame such that the short fiber layer is on the base mortar side and the short fiber penetrating the base material is on the wooden frame side. Then, after the mortar is solidified, once the nonwoven fabric substrate is peeled off from the base mortar, residual short fibers are present on the surface of the base mortar. Therefore, the tiles are pasted on the surface of the base mortar with the mortar.

  A non-woven fabric short fiber layer is embedded on the base mortar side, but if there are many short fibers, the mortar hardly enters between the fibers. For this reason, the surface strength of the base mortar does not appear. Therefore, there is a limit to the amount of fibers, and when it is small, there is no problem on the base mortar side, but it depends on how many short fibers are present on the surface. The embedded short fibers are solidified and fixed in the base mortar, and then the non-woven fabric base material is peeled off to expose the short fibers penetrating from the base material to the surface of the base mortar. By sticking with a sticking mortar, the short fibers on the surface of the base mortar and the sticking mortar are adhered to each other, whereby the base mortar and the sticking mortar are firmly adhered, and as a result, peeling of the tile is reduced.

  Hereinafter, specific examples of the nonwoven fabric of the present invention will be described.

Example 1
Polypropylene (PP) fibers having a fineness of 17.8 dtex and a fiber length of 76 mm were uniformly opened to obtain a uniform short fiber layer having a basis weight of 40 g / m ² . This short fiber layer is laminated on a base material (polypropylene warif sheet having a basis weight of 61.3 g / m ² and a thickness of 0.19 mm), penetrating from the short fiber layer toward the base material at a needle depth of 11.5 mm. A uniform nonwoven fabric having 44 / cm ² short fibers penetrating through needle processing of several 22 / cm ² was obtained.
Example 2
Polypropylene (PP) fibers having a fineness of 7.8 dtex and a fiber length of 56 mm were uniformly opened to obtain a uniform short fiber layer having a basis weight of 40 g / m ² . This short fiber layer is laminated on a base material (polypropylene warif sheet having a basis weight of 61.3 g / m ² and a thickness of 0.19 mm), penetrating from the short fiber layer toward the base material at a needle depth of 11.5 mm. A uniform nonwoven fabric having a number of penetrated fibers of 122 / cm ² was obtained by needle processing of several 22 / cm ² .
Example 3
Polypropylene (PP) fibers having a fineness of 17.8 dtex and a fiber length of 76 mm were evenly opened to obtain a uniform short fiber layer having a basis weight of 30 g / m ² . This short fiber layer is laminated on a base material (polypropylene warif sheet having a basis weight of 61.3 g / m ² and a thickness of 0.19 mm), penetrating from the short fiber layer to the base material at a needle depth of 9.0 mm. A uniform non-woven fabric having 55 / cm ² fibers perforated by needle processing of several 60 / cm ² was obtained.
Example 4
Polypropylene (PP) fibers having a fineness of 17.8 dtex and a fiber length of 76 mm were uniformly opened to obtain a uniform short fiber layer having a basis weight of 40 g / m ² . This short fiber layer is laminated on a base material (polypropylene warif sheet having a basis weight of 152.4 g / m ² and a thickness of 0.30 mm) and penetrating at a needle depth of 11.5 mm from the short fiber layer toward the base material. A uniform nonwoven fabric having a number of penetrated fibers of 27 / cm ² was obtained by needle processing of several 22 / cm ² .
Example 5
Polypropylene (PP) fibers having a fineness of 33 dtex and a fiber length of 89 mm were uniformly opened to obtain a uniform short fiber layer having a basis weight of 40 g / m ² . This short fiber layer is laminated on a base material (polypropylene warif sheet having a basis weight of 61.3 g / m ² and a thickness of 0.19 mm), penetrating from the short fiber layer toward the base material at a needle depth of 11.5 mm. A uniform nonwoven fabric having 27 / cm ² fibers perforated by needle processing of several 200 / cm ² was obtained.
Comparative Example 1
Polypropylene (PP) fibers having a fineness of 17.8 dtex and a fiber length of 76 mm were uniformly opened to obtain a uniform short fiber layer having a basis weight of 40 g / m ² . This short fiber layer is laminated on a base material (polypropylene warif sheet having a basis weight of 61.3 g / m ² and a thickness of 0.19 mm), penetrating from the short fiber layer toward the base material at a needle depth of 11.5 mm. the number of fibers passing through is subjected to needling number 200 present / cm ² to obtain a uniform nonwoven fabric 215 present / cm ^2.
Comparative Example 2
90% by mass of polypropylene (PP) fiber having a fineness of 17.8 dtex and a fiber length of 56 mm and a polyester composite fiber (L-PET) having a fineness of 4.4 dtex and a fiber length of 56 mm (melting point of the low melting point fiber) 110 ° C.) 10% by mass is uniformly spread to obtain a uniform short fiber layer A having a basis weight of 40 g / m ² , and further a polyester composite fiber (low-melting fiber having a fineness of 4.4 dtex and a fiber length of 56 mm 100% by mass is uniformly spread to obtain a uniform short fiber layer B having a thickness of 0.05 mm and a weight per unit area of 50 g / m ^2. The short fiber layer using the short fiber layer B as a base material A was laminated, and the adhesive treatment was performed at a processing condition temperature of 130 ° C., a processing time of 3 seconds, and a pressure of 5 kg / cm ² so that a flat plate hot press was applied to the B surface. The surface of the short fiber layer A was in a state where the short fiber feathers remained.
Comparative Example 3
Polyester (PP) fibers having a fineness of 33 dtex and a fiber length of 89 mm were uniformly opened to obtain a uniform fiber layer having a basis weight of 110 g / m ² . This short fiber layer is laminated on a base material (polypropylene warif sheet having a basis weight of 61.3 g / m ² and a thickness of 0.19 mm), penetrating from the short fiber layer toward the base material at a needle depth of 11.5 mm. A nonwoven fabric was obtained by performing needle processing of several 120 pieces / cm ² .

Next, for each of the nonwoven fabrics obtained in Examples 1 to 5 and Comparative Examples 1 to 3, the properties of the nonwoven fabric are measured as follows, and the evaluation of the results of installing and arranging the cement on each nonwoven fabric is as follows. I did it.
(1) Measurement of characteristics of each non-woven fabric (a) Weight per unit area (g / m ² ): Cut out a size of 50 cm × 50, measure the weight at that time, and convert it to a weight per 1 m ² .
(B) Thickness (mm): Cut out a size of 15 cm × 15 cm, multiply by an initial load of 0.05 g / m ² , measure the height of four corners, and show the average value.
(C) Ventilation rate : Measured with a frangole type testing machine described in 6.8.1 of JIS L1913 .
(D) Number of fibers: In the short fiber layer laminated on the base material, the fibers exposed through the base material and exposed on the opposite base material surface are magnified 150 times with a microscope (manufactured by Keyence Corporation). The number of fibers is measured per 1 cm ² of substrate. The number of measurements is n = 5, and the average value is shown.
(E) Peel strength (N / 5 cm): Double-coated adhesive tape (Nitto) on the short fiber layer surface of the nonwoven fabric made of fibers that penetrate the base material and are exposed on the opposite base material surface in the short fiber layer laminated on the base material Denko Co., Ltd. No. 523) adhered short fibers, and a paper adhesive tape (Sekisui Chemical Co., Ltd. Kraft Tape No. 500) was attached to the opposite side of the double-sided adhesive tape to prepare a sample.

The sample is a 50 × 200 mm sample piece, and the substrate / short fiber layer (with double-sided tape) nonwoven fabric interface is peeled off by about 50 mm parallel to the long piece. The peeled substrate side and the short fiber layer side are each attached to a chuck of a Tensilon tester and peeled off at a speed of 100 mm / min. The peel strength at this time is obtained. The number of measurements is n = 5, and the average value is shown.
(F) Handleability: Evaluation of the degree to which the base material and the short fiber layer are peeled off when the non-woven fabric is unwound or disposed, and the base material and the short fiber layer are integrated and good. ○
Although the short fiber layer is not peeled off from the substrate, it is difficult to handle. △
The short fiber layer is peeled off from the substrate and cannot be handled. ×
(2) Evaluation of cement (a) Commercial cement with a short fiber layer of nonwoven fabric to be evaluated on the bottom of a wooden formwork (length: 40 cm, width 25 cm, height 6 cm) on the cement side (Instant) 4 kg and 900 cc of water were mixed uniformly, put into the wooden formwork and allowed to stand for 40 hours to solidify. The height of the cement was 2 cm. In this solidification process, the drainage of the cement, the peelability of the solidified cement and the nonwoven fabric substrate, and the state of the short fibers on the cement surface were evaluated. In addition, the cement material for construction which mix | blended Portland cement, aggregate (sand), a water retention agent, adhesives, etc. with "Sunday cement" of the cement made from a household chemical industry as an instant cement was used.
(B) Drainage of cement The degree of water drainage after pouring cement into the installed non-woven fabric was evaluated.

Cement water is drained moderately from the nonwoven fabric. ○
Cement water is not easily removed from the nonwoven fabric. △
Cement water does not escape from the nonwoven fabric, or water leaks too much and cement leaks out. ×
(C) Peelability of cement and substrate The ease of peeling of the cement and substrate after cement solidification was evaluated.

The nonwoven fabric can be easily peeled off from the cement. ○
The nonwoven fabric is a little difficult to peel off from the cement. △
The nonwoven fabric is difficult to peel from the cement, and there are few short fibers on the cement surface. ×
(D) 2 kg of commercially available cement was poured into the short fibers on the cement surface solidified in the mold, and the adhesion state between the base cement and the adhesive cement was evaluated by the peelability of the base cement and the adhesive cement.
Peelability of base cement and pasted cement The pasted cement adheres well from the base cement. ○
Adhesive cement is slightly insufficient from the base cement. △
Adhesive cement is easily peeled off from the base cement. ×
Thus, the results of evaluation based on the above are shown in Table 1 below.

  From the above table, the tile attached using the nonwoven fabric according to the present invention has both good drainage and short fiber layer retention, excellent both substrate peelability and cement-cement peelability, and adhesion. It is understood that it is very effective in preventing the attached tile from falling.

The non-woven fabric of the present invention can also be used when a wall material, plaster coating, or the like is applied to the concrete surface in the same manner as when a tile is attached to the concrete surface.

Claims (3)

After uniaxially stretching a raw film on which a plurality of polyolefin resin films are laminated, a plurality of uniaxially stretched multilayer tapes cut to the required width along the stretching direction are arranged in parallel at regular intervals in the length direction of the tape. or 2-layer laminate as orthogonal, or the uniaxially stretched multilayered tape integrated woven vertically and horizontally, and basis weight 20g / m ² ~200g / m ² in the range sheet material a substrate, polyolefin short fiber A non-woven fabric effective for use in tiling or the like, characterized by comprising a laminate obtained by laminating layers and joining them by needling . After a plurality of polypropylene resin films are uniaxially stretched, a weight per unit area of 20 g / m ^{2 to} 200 g is obtained by crimping a uniaxially stretched multilayer tape cut in a required width along the stretching direction in parallel in both the longitudinal and lateral directions. / M ² sheet-like material as a base material, a laminated body in which polypropylene short fiber layers are laminated and bonded by needling, and the number of short fibers penetrating the base material is 10 / cm ^{2 to} 150 / cm ^{2 2,} a peel strength is 0.1N / 5cm~2.0N / 5cm between the substrate and the short fiber layer, aeration rate of the laminate ^{0.1cm 3 / cm 2 · S~30cm 3} / cm Non-woven fabric effective for tiling, etc., characterized by ² · S. The nonwoven fabric which is effective for tiling and the like according to claim ² , wherein the short fiber fineness of the polyolefin short fiber layer is 5 to 50 dtex, and the weight per unit area is 20 to 100 g / m ² .