SE460611B - WITH PLASTIC, RUBBER OR ASPHALT COATED MATERIAL AND PROCEDURE FOR ITS MANUFACTURING - Google Patents

Description

machine, at the same time as a knitted textile yarn structure is produced on the machine, whereupon the obtained textile-reinforced paper is coated on one or both sides by coating or lamination.

Dwmaun ten edible invention is inexpensive, while exhibiting good mechanical properties through the yarn reinforcement. The paper then functions as a carrier, as a filling and absorption material and as a stabilizer, which preserves an otherwise unstable textile thread structure. The reinforcement can suitably be a fabric which, as the main binding, has a tricot binding, which gives the yarn structure a zigzag-shaped appearance on one side, while the pattern on the other side largely represents a parallel thread system. Useful yarn types, such as the sample, are e.g. 167 dtex textured polyester yarn, 940 dtex polyester and nyloafilament yarn, 360 dtex split fiber yarn, 940 dtex polypropylene filament yarn and 100/150 dtex fused fiber yarn.

Possible bonds are e.g. fringe, tricot and combinations of these. The reinforcement possibilities and choice of yarn type for the weft installation in this production technique are extensive.

The coated material according to the invention can be used, for example, for the manufacture of materials for: protective clothing tarpaulins, tents, roofing, wall-covered blinds, packaging material.

The following describes examples of materials prepared and tests performed on some of the materials. Reference is made to the drawings, in which Fig. 1 shows different types of binding used and Sig. 2 and 3 show curves of load elongation for an uncoated material and a coated material according to the invention.

In the following description and claims, PA, PBS, PP and PVC are used as an abbreviation for polyamide, polyester, Pølypropene and polyvinyl chloride. When a plastic-coated product is mentioned, a product is referred to as çvïwš _ .rg. ¿, _ N; ñ-y fl- Ni 2.? »Í- Qz-. , \ _>. ~> _ -_ v.> * \ _ g v is either coated or laminated with plastic. The machine used for the production of test materials was purchased from Karl Éf} 'i5É Hayes Textilmaschinen Gmbn, Obersthausen, West Germany and is of the Raschel type named RS 4 HSO-V-N. The Raschel machine has four lie-it fb? rails, needles of the two-component type, and are provided with paper input. Three housing shafts, with the possibility of installing a quarter, J provide the hole needles on the calf rails with yarn. The laying rails are separately controlled by a pattern chain and can be moved behind the needles in the desired number of steps, which gives a so-called installation schedule. Llggske- na nr. 1, the outer one, has been used for the main binding and the laying rail no. 2 to the reinforcing yarn, which is inserted in the machine direction. To provide reinforcement across the machine direction, the machine is equipped with a device for weft inserts. From a free-standing yarn stand on which 48 pcs. yarn spools kzn are placed, 24 yarns are routed via individually controlled IRO suppliers to a laying machine that places the weft threads between fork straps, which transports the weft threads so that they are inserted parallel to the needles (knitting point).

The warp and weft insert (the reinforcements) are then bound by the main hole which forms meshes after the needles have penetrated the fed paper. The machine has a cutting width of 1960 mm. The machine has been rebuilt to the 9-pin / English inch pitch, as the original 18 pitch proved too tight. The change gave a good result, partly in terms of goods and partly from a yarn economic point of view. A lute-shaped paper 72 g / m2 was used as the base material, the reinforcement in both the longitudinal and transverse machine direction consisting of 940 dtex multifilament PBS yarns. The main yarn, which binds the two reinforcing yarns to the paper, consisted of 167 dtex textured PBS. The tricot was used as a binding. This binding construction was knitted with 30 m of fabric, each of 14 different reinforcement variants. 5 m of each binding was glued together with a precursor fabric to lengths of 100 m which was then laminated with plastic both single-sided and double-sided.

These materials can be considered suitable for tarpaulin and raincoat manufacturing, wet areas, wallpaper, etc.

The machine was rebuilt once more to the 4 1/2 needles / English inch division. The products got a completely new look and a better porosity. With this machine division, fabric was made with 7 many different combinations. The binding, a combination of i »3 :? ”I n: 1.9; 'fringe and tricot', further accentuates the porosity of the fabric.Üa The paper has been varied, using 12 paper materials with weights between 35-150 g / mz. - “” The reinforcing yarns have varied from 40 dtex up to 940 dtex.

Yarns of PA, PBS and PP have been used of both untextured and textured type. Experiments have also been made with split fiber yarn as reinforcement.

The base material of both dry and wet-formed paper has been fed mainly in single layers, but samples have been produced in both 2- and 8-layer paper. Inserting of loose materials between 2 tissue layers has also been done. Used paper weights span 35-150 sam: a x edge / az.

The paper fed into the machine gets a completely changed character compared to the original fed material, both in feel and appearance.

Table 1 Paper - used as a base for the composite products -Or-shaped latex-bonded paper Wet-form paper containing viscose rayon fibers 70% paper, 30% viscose paper fibers, viscose, PP thermo-bonded 65% paper, 35% viscose, binder multilayer paper.

OWIMUOW The number of binding types that can be used is largely infinite, partly separately for each calf rail and partly in combinations_between the calf rails. The bindings affect the end products so that the appearance in the form of both a wavy grid pattern and a completely smooth surface can be obtained.

The changes in appearance can be further accentuated by using yarns with special properties, for example shrink yarns.

Two main bindings have been used: A open fringe, B tricot. Binding B has been used in the production of materials 1, 14 and 19.

The bond C is a combination of A and B.

A series of composite materials down 14 pcs. variants of the arling have? manufactured, 1-14. In the main binding of the front ball, 167 textured polyester yarns have been used throughout. This has been køláß combined with reinforcing yarns of different finesse, type and density.Å "°} In addition, 11 different composite materials have been manufactured, whereby the basic material, reinforcement material and reinforcement density have been varied. division and arnerinç. paper- Binding Machine- Konpoait- Arlerinqacombinationor combination share, product lpi I: AB JB 9 1-14 _1 __} ___ L__§__L 2/1 2/2 Zl! _! _ _2 _, _ L2 4 / z 4/4 4/0 a / 1 a / 2 ll. _12. _12., _11 a / 4 o / 0 16/0 16/1: CI 1/2 15-IG. lill; Lä LQ ll 1! lll 1/2 lll lll Ill CCII / 2 ~ 20 gg B 9 19 L! DCI 1/2 21 2; PCII / 2 22-21 22_ §2_ §1_ 1/2 1/1 1 / ln cc 4 1/2 25 zå 'tight arnerinq (roofing felt) flfl Arnerinq across the ridge direction lt of 360 dte: aplittiber _ ~~~ Arnering across the ridge direction I: of 940 dte: PA (roofing felt) » carbon-positive material, dlrfbl- ~ ¿The material is pre-formed paper garnished with warp knitwear and laid out on a Ra schelmaskin. The paper has been reinforced with PBS yarn fiber (167 dtex textured), warp knit binding single-piece knit, nal-X density 9 needles / i. natxtatnet ca 3.5 mascot / m. Paf yarn (940 atexl 60 Z) has been added to the warp and weft joints with varying density. The liner thus consists of three wire systems. The material has a pronounced paper side and a pronounced yarn side.

This carrier material has also been coated: to provide material usable for clothing purposes lregnp1899 »protective clothing - single-sided coated) and truck canopy, lighter tarpaulins - double-sided coated. Coating material has been plasticized PVC. 14 different qualities were produced for coating.

The goal in the coating experiments was that the basis weight for the final product, single-sided coating, would be approx. 300-400 g / clz and for double-sided coating approx. 500-600 g / m2 (basis weight for the composite material approx. 150 g / m2).

In the production of both the single-sided and double-sided coated product, a lamination process was used, in which a PVC foil (basis weight approx. 250 g / m2) was applied to the reinforced paper. The one-sided coated quality was coated on the yarn side to prevent the reinforcing threads from being unraveled.

The water-repellent ability of the single-sided coated product proved to be too poor due to too thin a coating. The coating did not cover the intersections of the 940 dte: wires. The water-repellent ability, on the other hand, was sufficient for the double-sided coated product. For some grades of single-sided coated material, the paper was treated with hydrophobing agent SCOTCHGUARD PC 325, which was sprayed on the uncoated side. The weight gain was about It.

As the coating turned out to be too thin, an additional coating of some qualities was done with an acrylic varnish. This varnish is mainly used for coated goods intended for clothing or furnishings (for example upholstery for car seats). The purpose of the be-_, _ S4 026116 2; - action is to get a softer product. Approx. 25 g / m2 of acrylic lacquer was applied to the coated surface of: gloves no. 1 nen 12. * e The loosely and sparsely assembled wire system was reinforced by the PVC coating of the corrugated paper material. The paper enables a coating.

The following measurement methods have been used: a) Definition of the material: Surface weight E SS 25 12 69 Thickness SS 25 12 65 b) Mechanical properties: Tensile strength SS 25 12 67 Tear strength TEFO method 33-73 Flexural stiffness' SIS 65 00 43 Draping BS 5058: 1973 c) Other properties: Adhesion TEFO method 36-74 Air permeability, SIS 65 00 16 Water repellency SIS 65 00 10 Water resistance SIS 65 00 06 Fire resistance 'SIS 65 00 82 Abrasion FSD 3282 Water absorption SIS 25 12 28.

In the following result tables 3-11, uncoated qualities are designated with only qual. No. (figure). Unilaterally coated goods have the letter B before qualification. no. Double-sided coated goods denote DB 4 no. The distance between the 940 dtex reinforcement wires is for 2 qualifiers. 2 5 mm 7 10 m 12 20 mm and equal in both directions for these qualities. 1 Table 3 Surface weight, g / nz v Quality pi 2 7 12 p Only paper "77 77 77- Uncoated reinforced product 131 116 108 Single-sided coated product 285 370 350 Double-sided coated product S00 650 When coating, you usually need to run about 100 l of the carrier material through the coating mask to achieve the desired coating weight.

In this attempt low qual. 2 1 the beginning of the process before the added coating weight has been stabilized, which explains the lower total basis weight.

Table 4 Thickness, mn 2 7 12 Paper only 0.43 0.43 0.43 Uncoated reinforced article 0.70 0.64 0.70 Snxelsiaign be1aga article A 0.54 o, so 0.59 Double-sided coated article 0.62 0.77 The range of variation for the uncoated locked grades (14 pcs.) Is ° p62 _ mmm Table 5 Pull strength (I m) Qual.

P0PPeï uncoated arnernd item 2 T 12 coated item B2 87 B12 D fl ï DB12 The raw strength hair only existed for 3 grades of the coated goods. The level strength cannot be belted until the unoccupied anterial.

Pangs. 82 B? B12 DBT DB12 'ram-n s aöjstyvneu inn m' 'IWF fan: Ia 2.2 118 9; 05.6 65 ,: 50 ,! 21 123 91.5 12 !! 52 60 21 109 62 93 00 Qual. paper uncoated arnerad vlrz 2 T 12 wolf white: Ielrtvn. I75 I '215 I' 160 I '225 I' 150 I 5) "vip fan 1.3 1.0 2.0 1.5 1.5 0.9 1.2 0.9 I bclzgd item 32 87 E12 DBT DB12 Table 7 Draperine, I Qual.

PaPPeI uncoated reinforced item 2 7 12 coated item S358 2 DB12 adhesion. air permeability. on coated material.

Table 8 Adhesion (according to TEEO method 36-74), I / ca Qual.

DB8 '¿-¿. garnaida lot glrnaida 30.2 10.1: 3%? 70.5 57.5 65 02 Bl A-Å I-B 10 5 2-5 'paper side soot paper side water hub via the color. water retention. fire hardness and nâtuing have prnvata cnnaat Table 9 Air enonslä 11 het »m1. 111318 un, 02 0.3 0.015 B7 0.06 0.01 B12 0.065 0: n n: _ 02 0.05 ÅRE.

G1 and G2 are Gore-Tex naterinl.

G1 - basis weight 206 3 / iz.

G2 - basis weight 316 3 / Iz.

As the water-repellent ability was rather poor, the unilaterally coated product was tested partly with hydrophobing and with extra coating.

Table 10 water tightness. a water column Qual. 1 2 37 Il '15.5 B12 16 11.5 G1 11 911 G2) 100) 100 1 - 1 :: droppen 2 = bze droppen Aaz. 87 and B12 Scotchgardbehandlldef for men auuuelszaxg: untreat the item was vnttvßwll fifl * 2 I! x * Table 11 Water-repellent ability Qual. a water taken up B7 not hydrophobized 60 B7 hydrophobized 5 B7 lacquered. 61 a12 not newly amphobarized 'see B12 hydrophobized 2.1 B12 lacquered ”59 The coated product burns, but not worse than any non-flame retardant coated fabric.

Abrasion has been tested on DB12 (double-sided coated article) according to defense standard FSD 3282 Taber Abraser, abrasion pulley CS-10 load 250 p. After 1500 laps, no breakthroughs were found.

The experiment shows that the produced PVC-coated reinforced papers have a good tear strength in relation to the tensile strength. The tear strength 160-475 N for the single-sided coated grades 82 - B12 is high compared to common materials for protective and rainwear garments, which usually have a tear strength of max. 100 N.

These new materials have lower bending stiffness (ie are softer) and have better draping capacity than conventionally produced coated wa- IOIs.

Experiments with asphalt paving of a couple of materials have been carried out with good results for the formation of 'roofing felt'.

There are two properties that may need to be improved on the new materials. It is the water-repellent ability of the single-sided coated product (on the double-sided coated product it was good) and the adhesion to the double-sided coated quality.

In order to have a water-repellent ability on single-sided coated qualities (intended for ready-to-wear purposes), the paper must be hydrophobized. The slightly applied varnish did no good in this context. A further measure should be calendering of the carrier material, which should mean that a smoother surface can coat: 2 vianafcningen nos nen aubbeisiaiqe beiaqaa the product was sans: on the paper side. This may be because the paper cohesion was too poor or because the adhesion between the PBS wires and the PVC / s is too low. In the former case, the addition of SBR latex to the paper can be remedied, in the latter the case led to other common isocyanate-type adhesives. hide "fl hydrophobing and latex treatment can be done in connection with calendering of the carrier material. V 'For tarpaulins, the basis weight is usually around 700 g / nz. In this experiment, the double-sided coated product had a basis weight of 600-650 g / Iz.

The tensile strength is determined by the coarse PA reinforcement (940 dte: the wires) and should not be significantly affected by the coating. The differences that can be ascertained may be due to the stretcher material shrinking during the coating and since the reinforcement is so sparse, this has a large effect on the tensile strength values measured according to the cleaning method.

The flexural stiffness of the single-sided coated product is at a level of about 11-13 Nm 10-5, which is on a par with coated tricot for rainwear (about 10) and better than coated fabric (about 20) for true purposes.

The bending stiffness of the double-sided coated product is significantly lower than what is normal for tarpaulin products. The draping is good for these coated papers and is better than the average of comparable materials on the market.

The tear strength of the reinforced products is affected by the density of the tertiary alloy. Tear strength increases significantly even with very sparse textile reinforcement. The tear strength is leveled down for coated products.

In summary, it can be said that the materials produced have a good tear strength in relation to the tensile strength, good draping ability and low bending stiffness, good abrasion resistance and poor adhesion. The water-repellent ability is good for the double-sided coated product and satisfactory for the single-sided bex. By the present invention, paper can be utilized simultaneously in Y as expensive textile fibers are saved. In this way, inexpensive products, intended for single use or for repeated use, with improved fall and mechanical properties can be obtained. “__ All kinds of textile fibers, both woven and knitted, can be used, especially synthetic fibers .

Claims (7)

: ïæ4¿b% ¿11 A16 'Patent claim 1. Hot plastic, gun or asphalt coated fabric material. k å n -i n e t e c k n a t that it consists of coated paper, son before applying the coating is embedded down inserted and / or inlaid wire or yarn of organic or inorganic material. wherein the paper is formed by wet, dry or air-forming and, if necessary, Kenically treated. season hydrotobed or narcissistic. ' Cloth material according to Claim 1, in which the paper is lined with textile knitwear and possibly with weft inserts. Cloth material according to claim 2. k i n n e t e c k n a t of teztiltrlkån has warp tricot blending. Cloth material according to one of claims 1 - 3. k I n n e - t e c k n a t that the yarn used in the textile decoration consists of ev. textured polyester yarn. polyanldfilanent yarn. split fiber yarn. polypropylene yarn or low fiber yarn down coarse sizes from 40 to 940 dtex. 5. Method for transferring a down plastic. gunni or asphalt-coated cloth material according to claim 1, wherein a geno- wet, dry or lint tower formed paper. son possibly years Kenyan treated. såson bydrotoberat or resin bone changed. natas into a tricot machine. santidigt son a knitted textile yarn structure is sewn on the machine. whereupon the obtained textile laminated paper is coated on one or both sides by coating or laminating 6. a method according to claim 5, wherein the textile laminated paper is treated Kenically. season genon hydrophobing or beard bone treatment. °. ~ .1 ....- em-Jwe a v - - =, -; _ '¿$': f »7 f! r 7. a method according to claim 1, wherein the part of the paper used to be treated is treated. for example calendered. to achieve improved strength through improved adhesion and stability between the all-feather type yarn and the paper. A _