JPH06182936A - Laid sheet for industrial waste - Google Patents

Abstract

PURPOSE:To obtain a laid sheet in which peeling between layers, craze damage of coating agent scarcely occur by coating styluslike pile cloth formed with styluslike piles having suitable rigidity and suitable stretchability, flexibility on a ground structure as a base cloth with natural rubber, synthetic rubber or synthetic resin. CONSTITUTION:Cloth F having styluslike piles 2 of a shape having a diameter of 0.039-0.370mm, a length of 0.3-4mm and deformed at ends to normal cut shape, a spherical shape, a mushroom state, etc., on 10% or more of structure points for constituting ground structure 1 to be used as a composite base material is covered with natural rubber, synthetic rubber or synthetic resin. Accordingly, coating agents 3, 4 and the piles 2 perform rigid anchoring effect, no peeling occurs, craze damage, damage is little to provide excellent laid sheet. Further, the pipe knitted woven fabric is flexible and has suitable stretchability, deformability, and hence operability at the time of manufacturing a sheet is also excellent.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The industrial waste laying sheet according to the present invention is an industrial sheet in which a knitted or woven fabric having prickly naps is coated with a coating agent, which is resistant to peeling, cracking and tearing and has excellent chemical resistance. It is a laying sheet suitable for landfills of waste and storage of industrial waste.

[0002]

2. Description of the Related Art Conventionally, natural rubber, synthetic rubber, a rubber sheet containing these as the main components, or a sheet of cloth such as gauze or canvas covered with natural rubber or synthetic rubber has been used as industrial waste landfill or industrial waste. It was used as a laying sheet for storage areas. However, in these laying sheets, the adhesion between the base cloth and the covering material is not sufficient, delamination occurs, and eventually the covering material is cracked or broken, which may cause a problem that dangerous substances leak. There is.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the above conventional problems and is suitable for industrial waste landfill sites, industrial waste disposal sites, etc., where delamination and cracking of the coating material are less likely to occur. The challenge is to provide a seat.

[0004]

Means for Solving the Problems The inventors of the present invention have made the following inventions as a result of intensive research to solve the above problems. The present invention relates to a prickly napped fabric having a prickly nap having a length of 0.3 to 4 mm, which is a synthetic fiber having a diameter of 0.039 to 0.370 mm and occupying 10% or more of the texture points constituting the ground texture. At least one of the above is covered with a natural rubber, a synthetic rubber or a synthetic resin, and a laying sheet for industrial waste is featured.

The present invention will be described below with reference to the drawings. FIG. 1 is an exemplary cross-sectional schematic view of a laid sheet in which both the prickly napped fabric 2 side and the ground tissue 1 side of the prickly napped fabric F are coated with the coating agents 3 and 4.

FIG. 2 is a side view of the prickly napped knitted fabric K in which the tip of the prickly napped hair is deformed into a spherical shape, on the side of the prickly nap 12 and the ground structure 11.
It is an illustration sectional schematic diagram of the laying sheet which covered both sides with the coating agents 13 and 14.

Next, the prickly napped fabrics F and K which are composite substrates
A method for obtaining the above will be described based on FIGS. 3, 4, and 5. However, the prickly napped cloth K is obtained by deforming the tip of the prickly napped cloth F of the prickly napped cloth F. FIG. 3 shows a connecting thread 32 made of synthetic fiber having an appropriate rigidity by a double Russell machine or a moquette loom, which is stabbed from a three-dimensional fabric 35 obtained by three-dimensionally forming the front and back ground tissues 30, 31 in a connected state. It is a schematic diagram which shows the method of obtaining the standing fabric W, and when the middle part of the connecting thread 32 is center-cut in parallel with the ground textures 30 and 31 in the length direction of the cloth by the knife 34, it becomes the front side ground texture 30. It is possible to obtain a prickly napped cloth F in which the prickly naps 33 are formed on the back side ground tissue 31, respectively.

Further, FIG. 4 shows a ground structure 4 by a single pile circular knitting machine, a single tricot machine or a pile loom.
FIG. 3 is a schematic view showing a method for obtaining a prickly napped fabric F from a fabric in which a loop-shaped pile 41 is formed on the pile 4;
When the upper part of 1 is shirred by the rotary knife 43 and the fixed knife 44, the prickly napped cloth F on which the prickly naps 42 are formed can be obtained. 45 is a level plate.

According to the above, the prickly napped cloth F having a normal cut shape can be obtained.
Focusing on the fact that it is extremely effective to transform the tip of the prickly napped hair into a shape with a cross-sectional area larger than the diameter of the connecting yarn in order to strengthen the anchor effect with the coating agent and prevent peeling. As shown in FIG. 5, the stabbed napped fabric F is passed over the gas burner 54, and the tip of the stabbed napped hair is thermally deformed into a spherical shape from the normal cut shape.
A prickly napped fabric K having

The fiber material used for the ground structure may be synthetic fiber, regenerated fiber, natural fiber, inorganic fiber, metal fiber, etc., and may be used alone or in combination.

In the present invention, it is essential that the prickly naps are formed at 10% or more of the texture points of the ground texture composed of the above materials. If it is less than 10%, the bonding with the coating agent due to the anchor effect is not sufficient, and the coating material and the composite substrate are easily separated.

Next, in the present invention, a synthetic fiber having a diameter of 0.039 to 0.370 mm is used as the fiber material used for the prickly nap. The prickly naps are required to have appropriate rigidity because they need to exert a sufficient anchoring effect while firmly intruding into the coating material and to be bonded thereto. Therefore, the diameter of synthetic fibers used for prickly naps is 0.039-0.37.
Must be 0 mm. When the thickness is less than 0.039 mm, the diameter is too small and the rigidity is poor, so that the coating material is less likely to be bitten, the anchor effect is reduced, and peeling easily occurs. If it is 0.370 mm or more, weaving and knitting or center cutting becomes difficult. Practically 0.039-0.3
52 mm is preferred. As the fiber material used for the prickly naps, synthetic fibers such as nylon 6, nylon 66, nylon 46, polypropylene and polyethylene are preferable. Further, when deforming the tips of the prickly naps, it may be preferable to use fibers having a low softening temperature such as polypropylene and polyethylene.

Next, the length of the prickly naps must be 0.3 to 4 mm in order to obtain excellent peeling performance. If the thickness is less than 0.3 mm, the amount of bite into the coating material is small and the anchor effect is reduced. If it exceeds 4 mm, the amount (thickness) of the coating agent that coats the prickly nap is too large, and it is not suitable as the laying sheet of the present invention.

The arrangement of the ground tissue and the prickly naps will be referred to below. As the ground texture, a flat ground texture, a mesh-shaped ground texture such as a diamond shape and a honeycomb shape, and a ladder-shaped ground texture are basic textures. Of course, it is possible to arbitrarily select such as constructing the ground structure by using these structures individually or in combination. Furthermore, there is no particular restriction on the arrangement of the prickly napped hairs, and the arrangement is uniform or nearly uniform on all sides, such as dots, straight lines, curves, lattices, diagonal lines, diamond shapes, and honeycomb shapes. , The basic pattern is the layout of other patterns. These tissues can be selected independently or by a method of combining them.

Next, the essential points for producing a prickly napped fabric which is a composite base material for the laid sheet of the present invention will be described. First of all, when the napped state is almost parallel to the ground tissue, that is, when it is in a sleeping state, the anchoring effect with the coating material is small and the bondability is poor. A nap angle of at least about 20 ° is desired. Therefore, it is preferable that the connecting yarn or the pile yarn is heat-set so that the napped state is reliably maintained after the knitting and weaving and before the setter cutting or the shirring. Even if center cutting or shearing is performed without heat treatment, there is almost no problem in joining with the coating agent. Further, in order to enhance the adhesion and joining effect with the coating agent, and to remove the oil and fat adhering to the prickly napped fibers, it is also effective to carry out scouring, and at a relatively high temperature (for example, 60 ° C or higher). If refined, the above heat setting effect can be obtained at the same time.

The napped napped cloth obtained above may be heat-set by a pin tenter or the like at a temperature of about 150 ° C. for the purpose of dimensional stability and curling prevention.

The napped napped cloth obtained as described above is used as a composite substrate, and at least one of the cloths is coated with a waterproof and antiseptic coating agent to obtain the laid sheet of the present invention. As the coating material, natural rubber, synthetic rubber, synthetic resin, or a mixture containing these as the main components is used. The coating material may contain additives such as pigments, curing agents, fillers, plasticizers and stabilizers. As the coating method, various methods such as pouring, painting, coating, spraying, spraying with re-gunning, coding, topping, pressing, and crimping can be used, and cooling, air drying, natural drying, hot air drying,
The laying sheet of the present invention can be obtained by fixing and compounding by heating or the like.

[0018]

[Operation] As described above, according to the present invention, the diameter is 0.039 to 0.370 mm at 10% or more of the texture points constituting the ground texture.
A fabric with a length of 0.3 to 4 mm and a pierced nap whose tip is deformed into a normal cut shape or a spherical shape or a mushroom shape is used as a composite base material, and natural rubber, synthetic rubber or synthetic rubber is used. It is covered with resin. Therefore, the coating material and the prickly naps exert a strong anchoring effect, peeling does not occur, and there is little cracking or tearing, resulting in an excellent laying sheet. Also,
The prickly napped knitted woven fabric is soft and has appropriate elasticity and deformability, so it is excellent in workability during sheet production.

[0019]

【Example】

Example 1 A 14G double Russell machine manufactured by KARL MAYER was used. The ground structure on the front and back sides was nylon 240d / 48f, and the two sided reeds on each side had chain structure and insertion structure.
A three-dimensional fabric was obtained by forming a flat ground structure with appropriate elasticity and using a nylon monofilament having a diameter of 0.168 mm as the connecting yarn, and connecting 100% of the design points of the ground structure on the front and back sides. The three-dimensional fabric thus obtained is provided with a pin tenter made by Ichikin Co., Ltd. at 150 ° C. in order to give nap and dimensional stability of the fabric.
× Heat set for 2 minutes. Next, the three-dimensional fabric is center-cut (bilaterally cut) in parallel with the length direction of the fabric by a knife using a Karlmeier center-cutting machine, and the stab-like naps are sewn on the front side fabric and the back side fabric, respectively. A stabbed napped fabric having a thickness of 2.5 mm was obtained. Next, the pierced napped side was coated with latex rubber to a thickness of 2.4 mm, and the opposite side was coated with latex rubber to a thickness of 0.5 mm to obtain a laid sheet having the structure shown in FIG. .

Example 2 A 14G double Russell machine manufactured by KARL MAYER was used, and the ground texture of the front and back surfaces was nylon 300d / 48f, and the dimensional stability due to the chain texture and the insertion texture in each of the two reeds,
A flat ground structure with appropriate elasticity was used, and polypropylene monofilament having a diameter of 0.185 mm was used as the connecting yarn, and 50% of the structure points of the front and back ground structures were connected to obtain a three-dimensional fabric. The obtained three-dimensional knitted fabric was heat set at 100 ° C. for 2 minutes with a pin tenter made by Ichikin. Next, the three-dimensional knitted fabric is center-cut (both cut) in parallel with the length direction of the fabric by a knife using a Karlmeier center-cutting machine, and the middle part of the connecting yarn is cut into both front-side ground structure and back-side ground structure. Prickled naps were formed to obtain a napped napped cloth having a thickness of 3.2 mm. Next, the stabbed napped fabric is subjected to a process of thermally deforming the tip of the stabbed naps into a spherical shape by using an Ichikin hair-burning machine equipped with a gas burner. A stabbed napped fabric having the above was obtained. Next, latex rubber was coated on both sides in the same manner as in Example 1 to obtain a laid sheet having the structure shown in FIG. This laid sheet had a strong anchoring effect with the coating material because the tip of the prickly nap was spherically deformed, and exhibited extremely excellent peeling resistance.

[0021]

Industrial Applicability The industrial waste laying sheet according to the present invention uses, as a base fabric, a prickly napped cloth having moderate elasticity and flexibility, in which prickly naps having appropriate rigidity are formed on the ground structure. It is made by coating with natural rubber, synthetic rubber or synthetic resin as a coating agent. Delamination between the base cloth and the coating agent does not easily occur, and cracking or tearing of the coating agent does not easily occur. It is possible to prevent pollution such as outflow of harmful substances and underground penetration.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a laid sheet using a prickly napped fabric in which the tips of the prickly naps have a normal cut shape.

FIG. 2 is a schematic cross-sectional view of a laid sheet using a prickly napped cloth in which the tip of the prickly napped hair is spherically deformed.

FIG. 3 is a schematic perspective view showing a method for producing a prickly napped fabric from a three-dimensional fabric.

FIG. 4 is a schematic cross-sectional view showing a method for producing a prickly napped fabric from a pile knitted fabric.

FIG. 5 is a schematic view showing an example of a method for deforming the tip of a prickly nap.

[Explanation of symbols]

 F, K Composite substrate 1,11,30,31,40,51 Ground texture 2,33,42,52 Prickly nap 12,53 Prickly nap 3,4,13,14 Coating agent 32 Coupling yarn 34,43 , 44 knife 35 three-dimensional knitted fabric 41 pile 45 level plate 54 gas burner

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display area // D06M 15/693 23/16

Claims (2)

[Claims] 1. A prickly nap having 10% or more of the tissue points constituting the ground structure, which is a synthetic fiber having a diameter of 0.039 to 0.370 mm and having a prickly nap having a length of 0.3 to 4 mm. A laying sheet for industrial waste, wherein at least one of the cloths is covered with natural rubber, synthetic rubber or synthetic resin. 2. The laying sheet for industrial waste according to claim 1, wherein the tips of the prickly naps are spherical or mushroom-shaped.