JPH0797736A - Base cloth for waterproofing protection use - Google Patents

Abstract

PURPOSE:To provide base cloth for waterproofing protection use exhibiting excellent fittability to the processing surface, free from peeling and cracking troubles and having light weight and high strength. CONSTITUTION:Synthetic fiber yarn having a total denier of >=170de is woven at a weaving density fineness coefficient R of 130-700, wherein R is [weaving density (number of yarns/inch)]Xsq. rt. (total denier of constituent yarn). The synthetic fiber yarn is multiple stretch-broken interlaced yarn or spun yarn having a single fiber fineness of <=6de and a single fiber length of >=38mm or filament- interlaced loop yarn having a single fiber fineness of <=6de.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof / defense base cloth, and more particularly, a rooftop, a balcony floor surface, a wall surface, a pond,
The present invention relates to a base fabric for waterproofing in a bathroom, a parking lot or the like, or a protective base fabric suitable as a tent, a curing mesh, a base fabric for a sputtering sheet or the like.

[0002]

2. Description of the Related Art Conventionally, asphalt pitch, vinyl chloride resin, cement, etc. have been used for waterproofing, dustproofing, etc. on rooftops, balconies, ponds, bathrooms, parking lots, etc. There are drawbacks such as poor performance, poor dimensional stability, easy occurrence of water leakage due to cracking and peeling, and heavy weight. Also, there is a method of applying mortar on the wire mesh for the wall surface, but it is easy to crack and peel off,
Workability is poor and heavy. Defensive fabrics such as tents, curing meshes, and sputtering sheets are mainly vinyl chloride resin processed products and are difficult to dispose of.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above problems in the prior art, and it is waterproof and windproof for the floor, pond, bathroom, wall surface, parking lot, etc. of the rooftop balcony. For dust-proofing, and protection cloth such as tents, curing meshes, and sputtering sheets, it has good workability and excellent adhesion or fit to the processed surface.
It is to provide a lightweight and high-strength base fabric.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a multi-checking entangled yarn or spun yarn having a single fiber fineness of 6 denier or less and a single yarn length of 38 mm or more, or a filament entangled loop yarn having a single fiber fineness of 6 denier or less. Made of synthetic fiber yarns with total denier of 170 denier or more, 130 to 7
The present invention provides a waterproof / protective base fabric knitted and woven with a woven / knitting density fineness coefficient (R) of 00. However, R = woven / knitted density (books / inch) x √ (total denier of constituent yarns)

The base fabric of the present invention is woven and knitted using synthetic fiber yarns having a single fiber fineness of 6 denier or less and a total denier of 170 denier or more. When the monofilament fineness exceeds 6 denier, the resulting woven fabric becomes hard and it is not preferable as a waterproof fabric because it is difficult to fit the processed surface.
The preferred single fiber fineness is 0.1 to 3 denier. In the case of multi-stretch entangled and entangled yarns, 2 denier or less is more preferable. If the total denier is less than 170 denier, the strength is weak and it is not suitable as a waterproof / protective base fabric. Total denier is 4 for polyester fiber, for example.
00 to 2,000 denier is preferable, and in the case of aramid high strength fiber, 200 to 1,000 denier is preferable.

[0006] Further, the synthetic fiber yarn is composed of multi-draw-and-break entangled yarn or spun yarn having such a single fiber fineness and a single yarn length of 38 mm or more. If the single yarn length is less than 38 mm, it is difficult to obtain tenacity, while if it exceeds 2,000 mm, the machine is long and not practical. The single yarn length is preferably 4 for spun yarn.
5 to 200 mm, and in a multi-stretch entangled entangled yarn, an average fiber length of 250 mm to 1,500 mm is preferable.

The multi-staggered entangled yarn has a single aramid fiber thickness of 0.2 to 1.0 denier and an average fiber length of 250.
~ 1,500 is preferable, total denier is 200 ~
1,000 denier is preferred.

Alternatively, the synthetic fiber yarn comprises filament entangled loop yarns having a single fiber fineness of 6 denier or less and a total denier of 170 denier or more. The filament entangled loop yarn refers to an entangled loop yarn formed by so-called interlacing, Taslan-like loop processing, or other composite processing.

In the present invention, examples of the synthetic fiber include polyester fiber, polyamide fiber, aramid fiber,
Examples thereof include polyvinyl alcohol fiber, polyethylene fiber and polypropylene fiber. Above all,
Polyester fibers and aramid fibers are preferred. Not only these organic fibers but also inorganic fibers such as glass fibers can be used.

In the waterproof / protective base fabric of the present invention, such a synthetic fiber yarn has a weaving / knitting density fineness coefficient R of 130 to 700.
It is made by knitting and weaving. However, it is a value calculated by R = woven / knitting density (books / inch) × √ (total denier of constituent yarns).

When R exceeds 700, the eyes of the woven or knitted fabric are too tight and the adhesive strength with the waterproofing agent is deteriorated. The so-called bridge effect cannot be obtained. On the other hand, if it is less than 130, the bridging effect is very good in terms of adhesive strength, but the weaving or knitting fabric is unfavorably formed because of the occurrence of stitching and poor workability. A preferable woven / knitting density fineness coefficient R is 200 to 500.

For weaving, using a normal loom, plain weave, twill weave,
Any woven structure, such as mat weave, may be used, but plain weave is preferred. The knitting machine is preferably a warp knitting machine such as tricot and Russell, and has a weft insertion structure.

The waterproof / protective base fabric of the present invention may be subjected to a pretreatment. As the pretreatment agent, any water-soluble resin processing agent may be used as long as it is a resin that becomes soft when wet. Flexural rebound hardness when dried after pretreatment is JIS L1
It is preferably 7 g or more by the 096 C method (loop compression method), more preferably 10 to 25 g. In addition, when the water-soluble waterproofing agent is applied to the under-treated base cloth to process it, the under-treated base cloth preferably has a bending repulsion hardness of not more than 1/2 of its dry repulsion hardness due to water wetting. When it is preferably ¼ or less, for example, it fits snugly on a veranda floor having irregularities, has good adhesive strength, and has extremely good workability. In addition, it is thinner and lighter than conventional products.

Single fiber fineness of 2 denier or less, preferably 1
Weaving using a check-and-entanglement yarn made of aramid fibers having a denier or less, single yarn tenacity of 12 g / de or more, preferably 18 g / de or more, and an average fiber length of 100 mm or more, preferably 250 mm or more, and subjected to a pretreatment. 250k with no or preferably pretreated base fabric
It is possible to obtain a high-strength waterproof / defense fabric with a g / 5 cm or more.

[0015]

EXAMPLES The present invention will be described in more detail below with reference to examples. In the examples, the measurement of each characteristic value was as follows. Mass per unit area: JIS L1096 Base fabric thickness: JIS L1096 (base fabric) JIS K6378 (working fabric) Tensile strength: JIS L1096 (base fabric) JIS K6328 (working fabric) Bending rebound hardness: JIS L1096 C method ( Loop compression method) Sliding resistance: JIS L1096 A method (thread drawing method) Peeling strength: JIS K6328

Example 1 Polyester spun yarn 12 /-having a single fiber fineness of 3 denier and a single yarn length of 52 mm was woven at a density of 12 yarns / inch and a woven density fineness coefficient R = 12 × √ (5315/12) = 252.5. Weaving with the same standard, the resulting woven fabric as a pretreatment agent,
Union Chemical Co., Ltd., UNISOL PVC-168
(Vinyl chloride-vinyl acetate copolymer resin) 40 g / l, Soluble Starch 50 g / l, Wheat Starch 50 g / l After being dipped in an aqueous solution, dried at 150% for 1 minute at a squeezing ratio of 90%, and then pretreated. A base fabric A was obtained (amount of pretreatment agent attached, 3% by weight relative to the base fabric). The characteristic values are shown in Table 1.

The base cloth A is coated with a reball mighty aqueous solution (waterproofing agent) manufactured by Toyo Exterioria Co., Ltd. to waterproof the veranda with good adhesiveness, and a stable, light-weight waterproofing with a thickness of 1.5 mm. A veranda cloth (in Table 1, treated with waterproofing agent) was obtained.

Example 2 Single yarn fineness 0.75 denier, average single fiber length 1500 m
m, multi-thickness 300 denier aramid checkered entangled yarn [Technora (registered trademark), manufactured by Teijin Ltd.] are aligned and twisted at 200 T / M at 12 yarns / inch with the same density Weaving [weaving density fineness coefficient R = 12 × √
(300/2) = 294], using the obtained woven fabric as a pretreatment agent, manufactured by Union Chemical Co., Ltd., UNISOL PVC
-168 (vinyl chloride-vinyl acetate copolymer resin) 40g
/ L, Solble Starch 50g / l, Wheat Starch 50g
/ L aqueous solution, squeezing ratio of fiber to 80%, 15
It was dried at 0 ° C. for 1 minute to obtain a pretreated base fabric B. The characteristic values are shown in Table 1.

Base fabric B is coated with a reball mighty aqueous solution (waterproofing agent) manufactured by Toyo Exterioria Co., Ltd.
A lightweight thin waterproof membrane was obtained.

Example 3 Single fiber fineness 0.75 denier, average fiber length 1,500 m
m, multi-thickness 300 denier (A thread) and 100
Two denier (B yarn) aramid stretch-entangled entangled yarns (Technora (registered trademark), manufactured by Teijin Ltd.) were prepared, and 20
A warp knitted fabric is prepared by twisting 0 T / M, inserting a warp and weft with a 12 gauge Russell machine, and using a B thread as a entanglement yarn [knitting density fineness coefficient R = 12 × √ (300/2) = 29
4] and subject the obtained knitted fabric to the same preparation as in Example 2,
A pretreated base fabric C was obtained. The characteristic values are shown in Table 1.

This pretreated base cloth C was coated with a reball mighty aqueous solution (waterproofing agent) manufactured by Toyo Exterioria Co., Ltd. to obtain a high strength (300 kg / 5 cm) lightweight thin waterproof membrane.

Comparative Example 1 Using polyester spun yarn 12 /-having a single fiber fineness of 15 denier and a single yarn length of 51 mm, an undertreated base fabric D was obtained in the same manner as in Example 1 and waterproofed in the same manner as in Example 1. The agent was applied, but the resulting waterproof fabric had insufficient adhesion and was easy to peel off.

[0023]

[Table 1]

[0024]

The base fabric of the present invention has the following effects. By using the waterproof / defense base fabric of the present invention, it is possible to obtain a fabric which is ultrathin and has excellent workability and extremely excellent fit to a processed surface having irregularities. When cutting the base cloth according to the size of the machined surface, the base cloth has tension and workability is good. Further, when wet with water, it is possible to obtain a waterproof cloth having a better fit to the processed surface, good adhesiveness, and extremely excellent workability. It is stronger than conventional products, has excellent dimensional stability, and does not peel or crack. Further, it has high adhesiveness with a processing resin for the purpose of waterproofing, windproofing, dustproofing, etc. and can be suitably used as a base fabric of a fabric having such characteristics. It is lightweight and has high strength, and can be suitably used as a protective base cloth for tents, curing mesh, sputtering sheet and the like.

Claims (4)

[Claims] 1. A multi-checking entangled yarn or spun yarn having a single fiber fineness of 6 denier or less and a single yarn length of 38 mm or more, or a filament entangled loop yarn having a single fiber fineness of 6 denier or less, and a total denier of 170 denier or more. The synthetic / fiber yarn of (1) is knitted and woven with a woven / knitted density fineness coefficient (R) of 130 to 700, to provide a waterproof / protective base fabric. However,
R = Woven knit density (books / inch) x √ (total denier of constituent yarns) 2. The base fabric according to claim 1, which has been subjected to a pretreatment water-soluble resin treatment, has a flexion rebound hardness of 7 g or more when dried and a flexion repulsion hardness after being wet with water. The waterproof / protective base fabric according to claim 1, which has a repulsion hardness of 1/2 or less. 3. The waterproof / protective base fabric according to claim 1, wherein the synthetic fiber yarn is made of aramid fiber. 4. The multi-checking and entanglement yarn has a single yarn fineness of 2 denier or less, a single yarn tenacity of 12 g / de or more, and an average fiber length of 100.
The waterproof / protective base fabric according to any one of claims 1 to 3, comprising a monofilament having a size of at least mm.