JPH0336950B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is directed to a tufted woven fabric which is made by tufting pile onto a primary base fabric and which is finished with a desired backing to be used as a rug for carpets, artificial lawns, etc. It's about the product.

[Conventional technology]

The tufted raw fabric is coated with an adhesive backing to bond the pile and the primary base fabric, and if necessary, the adhesive is used to back the secondary base fabric, or a foamed resin is coated. It is finished by forming a cushion layer, or by embossing the cushion layer to form an uneven layer.

Regarding the lining finish of such tufted raw fabric, the present inventor used a coarse net as the primary base fabric, coated the adhesive without closing the net pores, and lined the uneven layer to improve ventilation and water permeability. Developed tufted products with improved properties, and published Japanese Patent Application Laid-Open Nos. 58-200706 and 1983.
−14812.

In addition, a net-like knitted fabric is layered on the back side of a warp-knitted pile fabric similar to a tufted raw material, and a foamed resin is applied, or a net-like knitted fabric coated with a foamed resin is adhered and the foamed resin is foamed and solidified. It is also known to form an uneven layer by doing so (Japanese Patent Application Laid-open No. 103617/1983).

[Problem to be solved by the invention]

Foamed resin is formed as a thin resin film containing air, that is, an aggregate of cell membranes, and is therefore more susceptible to wear than non-foamed resin.

In this respect, the foamed resin uneven layer disclosed in JP-A-59-103617 is expected to have wear resistance because a net-like knitted fabric is interposed as an interlining inside the foamed resin.

However, in JP-A No. 59-103617, regardless of whether the foamed resin composition is applied together with a net-like knitted fabric or applied while supported on a net-like knitted fabric, the foamed resin composition is viscous. Since this is a fluid material that is laminated on the back of the pile fabric and then foamed and solidified, the net-like knitted fabric used at that time is deposited on both sides of the pile fabric in the foamed resin composition, and the foamed resin is deposited on both sides of the pile fabric. The convex portions appear to protrude from the surface of the net-like knitted fabric, and the foamed resin convex portions of the net-like knitted fabric are not reinforced.

[Purpose of the invention]

Therefore, the purpose of the present invention is to form a durable and abrasion-resistant cushion layer by interposing a net-like interlining in the center of the convex part of the foamed resin formed on the back side of the tufted product to reinforce the concave part. do.

Another object of the present invention is to easily add a durable and abrasion-resistant cushion layer to the water-permeable tufted products disclosed in Japanese Patent Application Laid-Open Nos. 58-200706 and 59-14812, which were previously disclosed by the present inventors. It is to form a backing.

[Structure of the invention]

That is, the tufted product 33 according to the present invention is made by tufting a pile 32 onto a primary base fabric 31 and pasting it with a secondary base fabric 19 for lining. It is a net-like foamed resin sheet in which a foamed resin composition 16 is applied to form convex portions 26 of the foamed resin 16 that protrude symmetrically on the front and back, and the warp knitting net 34 is connected to the main warp 11.
The main warp 1 is knitted with the secondary warp 13 and 14.
1 continues straight in the wale direction W, a chain stitch row 12,
12', 12''... are formed, and the secondary warps 13, 14 wrap and connect between these chain stitch rows 12, 12'', 12''... In the gap G between ', 12''..., there are net holes 1 which are separated into several courses by the wrapping sub-warps 13 and 14 and which continue in the wale direction W.
5 is formed, and the foamed resin composition 16 is applied to the main warp 11 and the secondary warp 1 without blocking the net holes 15.
3, 14 and covered with the foamed resin composition 16, the chain stitch rows 12, 12', 12''... are connected to the vertical row 17.
The wrapping auxiliary warp yarns 13 and 14 covered with the foamed resin composition 16 form the horizontal rows 18, and void holes 36 surrounded by the vertical rows 17 and horizontal rows 18 are formed in the net holes 15 of the warp knitted net 34. The convex part 26 is a concave part with the void hole 36, and is characterized in that it is formed of a foamed resin 16 that covers the main warp 11 and the secondary warps 13, 14 and foams. It is.

1 and 2 illustrate specific examples of the present invention, and will be described in detail with reference to these figures. Each chain stitch row 12 has a first secondary warp 13 and a second secondary warp.
The two secondary warps 14 and 14 are arranged, and these secondary warps 13 and 14 continue to be knitted into the chain stitch row 12' over several courses at the same time, and then are separated into the left and right chain stitch rows 12' and 12''. The first sub-warp 13 and the second sub-warp 14 intersect in an X-shape between adjacent chain stitch rows 12 and 12', 12' and 12'', and the intersecting first sub-warp 13 and 2nd secondary warp 4
And two adjacent chain stitch rows 12 and 12'(12' and 12'',...) share the intersection point of the secondary warp as the apex 20 and have the chain stitch rows 12 and 12' as their bases. triangles 21 and 22 are formed between each chain stitch row 12 and 12', 12' and 12''... The net hole 15 is formed by partitioning the gap G of ``...'', and the triangles 21 and 22 and the net hole 15 are also formed continuously in the course direction C, and the foamed resin 1
6 is a convex protruding from the front and back of the warp knitting net 34 spanning two triangles 21 and 22 surrounded by the first sub-warp 13 and the second sub-warp 14 that intersect with each chain stitch row 12 at the center. 26, and the triangle 2
The main warp 11 and the first secondary warp 13 that constitute 1 and 22
The foamed resin 16 is inserted into the convex portion 26 and the second secondary warp 14 is inserted into the convex portion 26.
It is wrapped in and intervening.

The gap G between the chain stitch rows of the warp knitting net 34 depends on the thickness of the warp threads, but is generally 3 mm or more and around 5 to 20 mm, and the net hole 15 is made large enough to inscribe a circle with a diameter of 3 mm or more. .

The foamed resin 16 may be formed by mechanical foaming using a mixer or by chemical foaming in which bubbles are formed by decomposed gas from a blowing agent, and the resin may include vinyl chloride, polyurethane, etc. Various resins are used.

The bonding of the net-like foamed resin sheet 16 may be performed at the same time as the backing coating of the adhesive 35, but if one of the adhesive 35 or the foamed resin 16 has heat-fusible properties such as vinyl chloride. In some cases, in order to bond the primary base fabric 31 and the pile 32, it is preferable to once harden the adhesive 35 applied as a backing coating.

The pile 32 has a void hole 36 or each warp/weft thread 37, 38.
The warp threads 37 are attached to the coarsely woven primary base fabric 31 formed in between.
Tufting is performed with a coarse tuft gauge approximately twice the arrangement spacing of the tufts, and an adhesive 35 mainly made of vinyl chloride is applied to the backstitch surface without closing the voids 36.

In the figure, the interval G between the chain stitch rows 12 of the warp knitting net 34 is approximately three times the warp spacing of the primary base fabric 31, and the first sub-warp 13 and the second sub-warp 14 are arranged in the chain stitch row over three courses. 12 is wrapped and knitted from side to side, and is not knitted into a chain stitch row for the following three courses, and then the chain stitch row 12 is knitted from side to side on the left and right.
In this way, it continues in the wale direction in a zigzag pattern between adjacent chain stitch rows.

The foamed resin 16 is mainly made of vinyl chloride paste range, and the applied adhesive 35
After solidification, the bonding surfaces of the adhesive 35 and the net-like foamed resin sheet 19 are heated to such an extent that they become sticky, and then they are bonded by pressure.

In the figure, 27 is the base surface on which the tufted product 33 is applied.

〔Effect of the invention〕

(1) Net-shaped foamed resin sheet 19 in the present invention
The warp knitting net 34 is coated with foamed resin 16,
The front and back sides of the interlining 34 are not bonded to the back side of the tufted product and are formed separately from the tufted product, so the interlining 34 is formed using the net-like foamed resin sheet 19.
The convex portion 26 is located at the center of the net hole 1.
It is formed as a film that envelops the knitting yarns 11, 13, 14 surrounding the 5, and inside the protrusion 26 there are sub-warps 13, 14 surrounding the thick chain stitch row 12. Knitting yarn 11,1
3 and 14, the convex portion 26 is reinforced from the top, bottom, right and left, and has excellent wear resistance.

(2) Between the chain stitch rows 12, 12' of the chain stitch net of the warp knitted net that reinforces the foamed resin 16, the portions 21, 22 connected by the intersecting secondary warps 13, 14 and the chain stitch rows 12, 12' are connected. They are joined with foamed resin, and their joined parts 21 and 22 form the chain stitch row 12.
The tufted product 33 according to the present invention is easy to rub and wash because it adheres closely to the elastic structure and is integrated with the foamed resin 16, and the back side does not become loose and wrinkled when washed. The shape remains stable even after that, and therefore, the present invention is advantageous for pine in entrances, kitchens, etc. that are frequently washed, and artificial lawns that are constantly damp.

(3) The net-like foamed resin sheet 19 has net holes 15
as a gap, the net-like primary base fabric 3
1 without impairing the air permeability and water permeability of the tufted product obtained by 1. On the other hand, the holes 15 of such a net-like foamed resin sheet 19 are formed by the knitting yarns 11, 13, 1.
4, so the hole 1
There is no need to say that cracks will form around 5.

As described above, the present invention is advantageous in producing a cushioned tufted product that is highly flexible and has excellent abrasion resistance, washing resistance, and water resistance.

[Brief explanation of the drawing]

FIG. 1 is an enlarged back view of the tufted product according to the present invention, and FIG. 2 is a sectional view taken along line XX in FIG. 1. 11... Main warp, 12... Chain stitch row, 13, 14
... Secondary warp, 15 ... Net hole, 16 ... Foamed resin, 17 ... Column, 18 ... Horizontal row, 19 ... Secondary base fabric (net-like foamed resin sheet), 20 ... Vertex,
21,22...Triangle, 23...Stitch, 24,2
5...Gap, 26...Protrusion, 27...Floor surface, 31
...Primary base fabric, 32...Pile, 33...Tufted product, 34...Warp knitting net, 35...Adhesive, 36...Void holes, 37...Warp, 38...Weft, W...Wale Direction, C...Course direction, G
……gap.

Claims (1)

[Claims] 1. A tufted product 33 in which a primary base fabric 31 is tufted with piles 32 and lined with a secondary base fabric 19; (a) The secondary base fabric 19 has a warp knitted net 34 as an interlining; (b) The warp knitted net 34 is a net-like foamed resin sheet in which a foamed resin composition 16 is applied to form convex portions 26 made of the foamed resin 16 that protrude symmetrically from the front and back of the warp knitted net 34. Warp 11 and secondary warp 1
The main warp 11 forms chain stitch rows 12, 12', 12'', which continue straight in the wale direction W, and the secondary warp 1
3, 14 are those chain stitch rows 12, 12', 1
(c) The gap G between each chain stitch row 12, 12', 12''... is divided into several courses by the wrapping sub-warps 13, 14. (d) The foamed resin composition 16 forms net holes 15 that continue in the wale direction W.
Main warp 11 and secondary warp 13, 14 without blocking
The chain stitch rows 12, 12', 12''... coated with the foamed resin composition 16 form the vertical row 17, and the wrapping sub-warps 13, 14 covered with the foamed resin composition 16 form the horizontal row 18. , the void holes 36 surrounded by the vertical rows 17 and the horizontal rows 18 are formed in the net holes 15 of the warp knitting net 34. A tufted product characterized in that it is formed of a foamed resin 16 that covers the auxiliary warp threads 11 and 13 and 14 and is foamed.