JPH0669738B2 - Rug such as artificial grass and processing method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to mats, carpets,
It relates to rugs such as artificial lawns.

[0002]

Many rugs such as mats, carpets and artificial grass are made of needle punch felt or pile fabric. Above all, rugs used outdoors are called artificial grass,
It is made of a pile fabric using monofilament tape yarn as a pile yarn. Needle punch felts and pile fabrics used for such rugs are finished by laminating a sheet-like backing or by thickly coating and laminating a resin composition in order to impart dimensional stability and cushioning properties. In order to impart cushioning properties, a method of using a foamed resin sheet as a backing material or applying and laminating a foamed resin composition is adopted.

In a mat which is finished to a certain size like a mat, an edging tape may be attached to the back side by adhesion (Jpn. Kokai 2-39421 / Kaisho 60-1).
5263). As a method of constructing a rug on a wide floor surface, there is also a method of abutting the edges of the rug and applying an adhesive tape to the back side of the rug to join the rug (Japanese Patent Publication No. 63-33848 / 61-68011), and magic tape ( A surface fastener called "Registered Trademark" is also used for the adhesive tape (Jpn.

When the edging tape or the adhesive tape is adhered to the back surface of the rug as described above, the peripheral edge is raised by the thickness of the tape in the thin rug, and the cushion material becomes a seam in the thick rug lining the cushion material. There will be a deep crack groove between them.

In order to eliminate such inconvenience,
49025 (Actual Development Showa 54-66624) and Actual Exhibit 55-
As shown in Japanese Utility Model Publication No. 49026 (Shokai 54-92026), the backing material is cut off at the edge of one of the rugs to be spliced to form a downward step of an inverted L-shaped section in which the surface material projects. ,
The back material protruded by cutting the front material on the edge of the other rug L
There is a method of forming the upper step of the letter-shaped cross section, stacking the lower step and the upper step to make the thickness uniform, and then joining the rugs together. It was considered to be convenient for the construction of floor mats for rhythmic gymnastics that should not have cracks and artificial grass for outdoor field.

FIG. 6 shows the conventional process of constructing the rug 40 in order, and shows the downward steps at the points 41a and 41b indicated by the two-dot broken line where the edge of the rug should be excised (FIG. 6 (a)). When forming the part 42, only the backing material 44 is cut along the edge 43, and when forming the upward step part 45, the front material 46 is deeply cut so as to reach the middle of the layers of the backing material 44. (FIG. 6 (b)), the backing material is cut parallel to the surface of the rug until the cut grooves 47/48 are reached and the chips 49/50 are removed (FIG. 6 (c)), and so on. The surface fasteners 53a and 53b are respectively adhered to the bottom surface 51 of the downward step portion 42 of the rug 40a and the plane 52 of the upward step portion 45 of the rug 40b ((d) of FIG. 6), and the downward step portion is formed. 42 and the upward step portion 45 are overlapped, and the surface fasteners 53a and 53b are joined to each other. Rug 40a by and the 40
The edges 43a and 43b of b are joined together. The surface fasteners used for the downward step and the upward step may both be male (non-loop pile type).

[0007]

Since the rug 40 is a flexible fiber product, it is difficult to accurately cut the backing material along the surface as shown in FIG. 6 (c), and the backing material is difficult to cut. There is a concern that the front material 46 and the backing material 44 may be accidentally cut off during the incision, and the protruding portion 54 and the upward step portion 45 of the surface material that are left uncut to form the downward step portion 42 are formed. The thickness of the protrusions 55 of the backing material 44 is uneven and the rugs 40a and 40b
Irregularities are easily formed on the seam 56. Further, since the surface material 46 is based on a tough base cloth, the backing material 44 is often made of a cushion material that is bulky and easily expands and contracts even if the protruding portion 54 of the surface material 46 is not broken. Therefore, the protrusion 55 of the backing material 44 is likely to be cracked 57 and easily broken.

For this reason, when tying a rhythmic gymnastics floor mat which is rubbed violently during use or a rug 40 as an artificial lawn for a ball field, a method is used in which the edges 43a and 43b are sewn by hand. The method of overlapping the upward step portion 45 with is not suitable. However, the sewn rug is so long that it cannot be said that the rug will be carried in and out every time it is used.
Since it is unavoidable to keep it laid all the time, it hinders the multipurpose use of gymnasiums and other sports facilities.

[0009]

The rug processing method according to the present invention eliminates such inconveniences, and a required surface material 11 such as needle punching felt, tufted pile cloth, Wilton pile cloth, knit pile cloth, etc. In the process of laminating the backing material 13 on the back surface 12 of the sheet 1, the tape 1 is provided between the front material 11 and the backing material 13 at the edge portion 22 of the front material 11.
5 is sandwiched, and after the backing material 13 is laminated and adhered, a cut mark 23 reaching the tape 15 is attached to the backing material 13 along the edge 22 of the front material 11 at the edge portion where the tape 15 is sandwiched. The edge portion 24 from the cut scar 23 to the edge side
Peeled off from the surface material 11 together with the tape 15,
On the back side of the edge 22 of the backing 13 with the backing 13 removed
And further, the back surface 12 of the surface material 11 thereof.
An end of two rugs 21a, 21b in which the surface fastener 27 is adhered to the upper bottom surface 26 of the downward step portion 25 and the surface fasteners 27a, 27b are adhered and laminated to the upper bottom surface of the downward step portion 25a, 25b. Match the edges 22a and 22b,
The surface fasteners 27a and 27b are superposed on the other surface fastener 28, and the two rugs 21a and 21b are joined together via the other surface fastener 28.

The rug 21 according to the present invention is formed by such a processing step, and is formed by laminating a surface material 11 such as a needle punching felt, a tufted pile cloth, a Wilton pile cloth, a knit pile cloth and a backing material 13. Surface 14
Tape 15 is sandwiched between parts of the
5 is adhered to at least one of the surface material 11 and the backing material 13, and the peel strength between the surface material 11 and the backing material 13 in the sandwiched portion 16 of the tape 15 is different from that of the other portion 17 It is characterized in that it is lower (weaker) than the peel strength between the surface material 11 and the backing material 13 in.

As the backing material 13, a resin composition 20 such as vinyl chloride, asphalt, polyethylene, or attack polypropylene is used as a surface material by a doctor 29 or other means.
It can also be formed by coating and laminating on the back surface 12 of the tape. In that case, as shown in FIG.
5 are piled up, and the resin composition 2 is put on the tape 15.
0 is applied and laminated. In that case, the resin composition 2
In order to eliminate the shift movement in the coating and laminating process of 0, the tape 15 is an adhesive tape laminated with an adhesive, and the surface material 11
It is advisable to temporarily adhere to the back surface 12 of the.

FIG. 1 shows a process of applying a vinyl chloride resin composition 20 containing a foaming agent. In the heat-fusible resin composition 20 such as asphalt, polyethylene or attack polypropylene, T-die extrusion is used. A curtain flow coater such as a molding machine is used. In the figure, 30 is a heating tenter.

As the backing material 13, a thick base cloth used for backing a tufted carpet can be used. In this case, the front material 11 is passed through a roll coater 31 as shown in FIG. A backing adhesive 32 such as latex is applied to the back surface 12, a tape 15 is overlaid on the application surface 33, and at the same time, a backing material 13 is overlaid, and the front material 11 and the backing material 13 are adhered and pasted through a heating tenter 30. To meet. still,
In this case, since the tape 15 is adhered to the back surface 12 of the surface material 11 by the backing adhesive 32, it is not necessary to use an adhesive tape.

When the backing material 13 has a heat-sealing property such as a foamed vinyl chloride resin sheet, the tape 15 is sandwiched between pressure-bonding rolls for adhering the backing material 13 to the front material 11 and the front material 11 and the back material. It is also possible to pass the material 13.

Thus, when the tape 15 is coated with the resin composition 20 to form the backing 13, the backing 13 is applied during the coating process.
(FIG. 1), when the front material 11 and the backing material 13 are bonded together with the adhesive 32 (FIG. 2), one of the front material 11 and the backing material 13 to which the adhesive 32 is applied (FIG. In addition, when the backing material 13 has a heat fusion property, the backing material 13 is adhered to the backing material 13, respectively.

The peeling strength between the surface material 11 and the backing material 13 in the sandwiched portion 16 of the tape 15 is different from that of the other portion 1.
In order to lower (weaker) the peel strength between the front material 11 and the backing material 13 in No. 7, a release agent is added to the tape 15 or a material such as a paper tape that easily peels in the layer is used. Alternatively, the tape 15 can be folded into a double structure as shown in FIG. It should be noted that such a material that is easily peeled off in the layers or the tape 15 that is double folded is used as the surface material 1
It may be adhered to both 1 and the backing 13.

Long rug 21a.2 rolled up in a roll
When the roll 1b is unwound and spread and the edges 22a and 22b are joined together, the tape 15 is sandwiched between the front material 11 and the backing material 13 at the edge portion 22 of the rug 21.

As the surface material 11, a pile cloth such as a tufted pile cloth, a Wilton pile cloth or a knit pile cloth in which a pile 19 is locked to a woven or knitted base cloth 18 may be used. Back 12 of pile fabric
The backing agent 32 is applied to the pile 19 and the pile 19 is applied to the base cloth 18
It is good to adhere firmly to.

[0019]

According to the present invention, the peeling strength between the surface material 11 and the backing material 13 of the sandwiched portion 16 of the tape 15 is weaker than the peeling strength between the surface material 11 and the backing material 13 of the other portion 17. A cut mark 23 reaching the tape 15 is formed on the edge 2 of the surface material 11.
When it is attached to the backing material 13 along the line 2, the ear end portion 24 on the end edge side from the incision mark 23 of the backing material 13 is peeled from the surface material 11 together with the tape 15 as it is or very easily. A downward step 25 is formed after the edge portion 24. Therefore, it is not necessary to cut the backing material 13 in parallel to the surface of the surface material 11, and the upper bottom surface 26 of the downward step portion 25 left after the peeling is flat.

In particular, with the backing material 13 which is a cushioning material, it has a weak tear strength and can be peeled off by tearing off the edge portion 24. Therefore, the cut marks 23 to be peeled off are formed on the tape 15. It may be shallow enough not to reach completely, and therefore the surface material 11 may be used when making the cut scar 23.
There is no danger of cutting a wound.

Further, at the portion 16 where the tape 15 is sandwiched, a slight step 37 is formed on the surface of the backing material 13 so that it can be seen by touching it with a fingertip, and the step 37 serves as a mark for inserting the cut scar 23. Also, the place 16 where the cut scar 23 is attached is not mistaken.

Further, in the present invention, like the backing 44 forming the upward step 45 of the conventional rug 40 shown in FIG.
The lining material 11 does not serve as a connecting material for connecting the rugs 21a and 21b that are butted to each other, but the rug 21
Since a and 21b are connected by the strong fibers forming the base 34 of the surface fastener 28, the joint 3
There is no problem that 5 is cracked and a deep groove reaching the back surface of the rug is formed.

Furthermore, when a thick backing material 13 is used, a backing material 36 of a required thickness is laminated on the back surface of the surface fastener 28, which is a connecting material, so that the backing material 36 can be flattened. It is not necessary to consider the two thicknesses of the downward step portion 42 and the upward step portion 45 that are joined to each other.

Moreover, in the present invention, the rug 2 to be spliced is also used.
Since the upward step portion 45 (FIG. 6) in which the surface material 11 is cut off is not formed at the edge of No. 1, the loss of the surface material 11 which has been generated by cutting conventionally is eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view of a rug processing step according to the present invention.

FIG. 2 is a perspective view of a rug processing step according to the present invention.

FIG. 3 is a cross-sectional view of a rug according to the present invention at a seam.

FIG. 4 is a cross-sectional view of an edge portion of the rug according to the present invention.

FIG. 5 is a cross-sectional view in a process of processing a rug according to the present invention.

FIG. 6 is a cross-sectional view of a conventional rug processing step.

[Explanation of symbols]

 11 surface material 12 back surface of surface material 13 backing material 14 laminated surface 15 tape 16 sandwiched portion 17 other portion 18 base cloth 19 pile 20 resin composition 21 rug 22 edge 23 cut wound 24 ear edge 25 downward step Part 26 Top Bottom 27 Face Fusner 28 Face Fusner 29 Doctor 30 Heating Tenter 31 Roll Coater 32 Backing Adhesive 33 Applying Surface 34 Base 35 Seam 36 Backing 37 Steps 40 Rugs 41 Places to Cut 42 Downward Edge 43 Edges 44 Backing Material 45 Upward Step 46 Surface Material 47 Cut Wound 48 Cut Wound 49 Chips 50 Chips 51 Bottom 52 Flat 53 Surface Fasner 54 Projection

Claims (4)

[Claims] 1. A backing material 13 is laminated on a back surface 12 of a surface material 11 such as a needle punching felt, a tufted pile cloth, a Wilton pile cloth or a knit pile cloth, and the backing material 13 and the backing material 13 are laminated together. A tape 15 is sandwiched by a part of the laminated surface 14 and adhered to at least one of the front material 11 and the backing material 13.
The artificial lawn characterized in that the peeling strength between the surface material 11 and the backing material 13 in the sandwiched portion 16 is weaker than the peeling strength between the surface material 11 and the backing material 13 in the other portion 17. Rug etc. 2. The rug for artificial grass or the like according to claim 1, wherein the tape 15 according to claim 1 is sandwiched between the front material 11 and the backing 13 at the edge portion 22 of the rug 21. . 3. A backing material 13 is attached to the back surface 12 of the front material 11 by sandwiching a tape 15 between the edge portions 22 of a required front material 11 such as needle punching felt, tufted pile cloth, Wilton pile cloth, and knit pile cloth. After lamination adhesion
At the edge portion where the tape 15 is sandwiched, the cut marks 23 reaching the tape 15 are provided along the edge 22 of the surface material 11 to the backing material 1.
3, the edge portion 24, which is the end edge side from the cut mark 23 of the backing material 13, is peeled off from the surface material 11 together with the tape 15, and the backing edge portion 24 is attached to the back side of the removed surface material 11. A method for processing a rug such as an artificial lawn, which comprises forming a downward step 25. 4. A backing material 13 is attached to a back surface 12 of the front material 11 by sandwiching a tape 15 on an edge portion 22 of a required front material 11 such as a needle punching felt, a tufted pile cloth, a Wilton pile cloth or a knit pile cloth. After lamination adhesion
At the edge portion where the tape 15 is sandwiched, the cut marks 23 reaching the tape 15 are provided along the edge 22 of the surface material 11 to the backing material 1.
3, the edge portion 24, which is the edge side from the cut wound 23 of the backing material 13, is peeled off from the surface material 11 together with the tape 15, and the backing material edge portion 24 is attached to the back side of the removed surface material 11. The downward step portion 25 is formed, and the upper bottom surface 2 of the downward step portion 25 is formed.
The surface fastener 27 is adhered to 6 and its downward step 25a.
The two rugs 21a and 21b in which the surface fasteners 27a and 27b are bonded and laminated to the upper bottom surface of 25b are butted against the edges 22a and 22b having the downward step portions 25a and 25b, and the surface fasteners 27a and 27b are attached. A method for processing a rug such as an artificial lawn, which is characterized in that the two rugs 21a and 21b are overlapped with each other on the other surface fastener 28, and the two rugs 21a and 21b are joined together via the other surface fastener 28.