DE1924137A1 - Abrasive grain carrier fabric web made of interwoven fibers and process for their manufacture - Google Patents

Description

Web of abrasive grain carrier fabric made from interwoven fibers and processes for their production

Pur the manufacture of high quality abrasive cloths, which are in the form of Sohleifbändern or other forms of application for machine sanding varied mainly in the metal and wood-processing industry use can be used as carrier material ä primarily cotton fabric.

If cellulose tissue is used, for technological reasons, preference is given to regenerated cellulose of the type Polynosic fibers are used. Also mixed fabrics Cotton / rayon and synthetic fiber materials such as polyamide and polyester fibers can be used under certain circumstances will.

The disadvantage of using raw abrasive fabrics is that they are finished, i.e. finished, before they are actually finished can be subjected to a relatively complicated, expensive preliminary dry and wet finishing process Need to become.

The reason for this is that high-absorbency carrier fabrics are required for the production of abrasive fabrics, since only these the prerequisites for a faultless liability of the Have finishing and binding agents on the fabric.

The need for the preliminary dry and wet finishing operations results from the fact that the conventional warp-sized abrasive backing fabric - due to Growth constituents of cotton and by the conventional Composition of the sizing agents, anti-adhesive character compared to the conventional finishing and finishing agents to be applied later

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Have binders and therefore traditionally have to be desized. It has now been found that you can avoid the disadvantages outlined above if you have a _; Abrasive grain carrier fabric web is used, this being characterized in that

a) the warp thread sized and finished and the size and finish is firmly bonded without a boundary layer and

b) the weft thread has a finish.

P As far as the warp and / or weft thread of the carrier fabric Cotton, the fiber material must be in the unspun state, i.e. in flake form or in the spun state as Before weaving, the thread must be freed from the growth-accompanying substances in cotton such as fats, waxes, pectins and the like.

The washing and rinsing processes that can be used for this are e.g. in the textbook of textile chemistry by Hermann Rath, second edition, Springer Verlag 1963, pages 53 to 56, described. in the Essentially, the fiber material in the aqueous medium undergoes an alkaline treatment with a subsequent washing and Subject to rinsing process.

™ A special embodiment of the abrasive grain carrier fabric web is characterized in that the warp thread is provided with a core size (core size - see ADHÄSION magazine, Born in 196I, No. 10 - page 505-512, and No. 11 - page 564-577 and No. 12 - page 617-622, in the article on "Sehlichtemittei für die Textilindustrie" v. Erich P. Frieser).

In a further embodiment, the abrasive grain backing fabric web is characterized in that the finish on the warp thread and weft thread is finished by finishing with a finishing agent which contains organic solvent or swelling agent emulsified in the aqueous medium, which is a swelling agent at temperatures of 15 - 45 ° C and above 65 - 200 ⁰ C a solvent for the size on the warp thread

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has been ordered.

A web of abrasive grain backing fabric produced in this way has the great advantage that the abrasive fabric finish adheres firmly with it the core sized warp thread and the weft thread is firmly connected.

In the production of the present web of abrasive grain fabric backing, there is the advantage that there are no large amounts in the finish must be applied to finishing agents, since the warp thread is already core sized and these size components be part of the finish due to their material composition. In addition, the new arrangement in the Abrasive grain carrier fabric web achieves a high degree of flexibility.

The warp and weft thread of the abrasive grain backing fabric web can consist of fibers or fiber combinations, with a grain size range of 80 (international standard) and below cotton and, for finer grains, regenerated cellulose fibers, preferably polynosic fiber for sole belts. A mixture of the warp and weft yarns at a ratio of 66 wt.% Cotton and 55 wt.% Rayon acts in the coarse and fine particle size range, a mixture of 45 wt.% Cotton and 55 wt.% Rayon in the fine grain size range favorable. An admixture of synthetic fibers proportion of up to 45 wt.% Of cotton and Zellwollgarn is favorable also for wet-strength material, which are used as synthetic fibers polyester, polyamide and polyacrylonitrile question.

The following can be used as size for the warp thread or, preferably, core size: degraded starch and starch derivatives, Synthetic resins based on isocyanates, homo- and / or copolymer acrylic compounds (butyl, methyl acrylates), poly, vinyl alcohol, polyvinyl acetate, acrylic-nitrile-butadiene-styrene mixed polymers in the form of solutions or dispersions and. appropriate wetting agents, e.g. naphtha.linsulfonate, Acrylic derivatives or fatty alcohol polyglycol ethers, individually or in

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Combination.

A preferred core size consists of

30 - 90 parts by weight of maize,

Rice or potato starch

3 - 20 "fatty alcohol polyglycol ether, preferably

Coconut fatty alcohol with 5 - 12 molecules of ethylene oxide per fat molecule,

10-50 "copolymer, aqueous acrylate dispersion

from 35 wt.% A'thylacrylat, 10 wt.% methacrylic acid, 40 wt.% methyl methacrylate and 15 wt. ¹ ^ acrylamide,

957-840 "water.

Another preferred core size consists of 1-25 parts by weight of water-soluble copolymer

30 wt.% Acrylic acid and 70 wt.% Butyl acrylate,

3 - 15 "coconut fatty alcohol polyglycol ether with 5 -

Molecules of ethylene oxide per fat molecule,

10-80 "copolymer, aqueous acrylate dispersion

45 wt.% Ä'thylacrylat, 35 wt.% Butyl acrylate, 10 wt.% Vinyl acetate and 10 wt.% N-methylolacrylamide. 986 - 870 "water.

Possible finishes for the sized warp thread and for the weft thread are, for example: animal hide glue and / or reactive and non-reactive copolymeric acrylate solutions or aqueous dispersions, polyisocyanates, polystyrene, N-methylol compounds of urea and its derivatives, aldehydes and its derivatives , Sulfone compounds, phenol-formaldehyde resole resins, polyvinyl alcohol, acetate and chloride in the form of dispersions and solutions, epoxy and polyester resins and starch, starch derivatives and ethoxy adducts, these containing organic solvents or swelling agents emulsified in the aqueous medium, which at temperatures of 15 - "45 ⁰ C a swelling agent

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and above 65-20O ⁰ C are a solvent for the size on the warp thread or a part thereof. Emulsifiable organic solvents suitable for this purpose are, for example, toluene, xylene, ethyl acetate, white spirit, trichlorethylene, perchlorethylene, methylene chloride. Preferred finishing agents consist of

- 100 parts by weight of animal hide glue (300 sheets size 100 mp) -. 30 "of a copolymeric aqueous acrylate

Dispersion of 45 Gew./£ -. ^ 20 percent ethyl acrylate, 5-20 wt% methacrylic acid, 0 -. 40% by weight of methyl methacrylic, 5-25% by weight of acrylonitrile, 0-45% by weight of butyl acrylate and 5-15 wt... . % N-methylolacrylamide, -

- 10 "coconut fatty alcohol polyglycol ether with

5 - 12 molecules of ethylene oxide per molecule of fatty alcohol,
- 35 "chlorinated hydrocarbons, preferred

Methylene chloride, 785-864 "water

or off

-I50 "an aqueous copolymeric acrylate dis-

persion of 45 -. 20% by weight ethyl acrylate, methacrylic acid 5-25 ^,. 0 - 40% by weight of methyl methacrylate, 5 -. 25% by weight of acrylonitrile, 0 -. 45 percent butyl acrylate and # 5 -. 15% by weight N-. Methylolacrylamide,

- 20 "water-soluble copolymer made from 30

Wt.% Acrylic acid and 70 wt.% Butyl acrylate. ..- ■■■ - ■

5 7.40 "dimethylolglyoxalmonourein,

1 - 5 "magnesium chloride,

1 - 30 "toluene,

755 -9 ^ 0 "water.

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By employing the preferred finishing agents, the following are achieved achieved particular advantages. The crosslinking acrylate dispersions have as a finish component to those to be applied later Phenolic base resins also have good adhesive properties this avoids embrittlement of the tissue. :., - · - ■■.

In addition, the abrasive grain carrier fabric web can be used on both Sides of the web be provided with the same finish, for example by a dipping or impregnation process or a double-sided coating or squeegee process is achieved. ·. .

example 1

A warp yarn of size Nm 34 made from regenerated cellulose fiber (Polynosic type) or a cotton fiber material that has been used before the Spinning, for example, in flake form, boiled under alkaline conditions, washed and rinsed, is carried out in a sizing trough with a Recipe, consisting of

80 parts by weight of starch 3 "fatty alcohol polyglycol ethers ₃ digested by acid breakdown, namely

Coconut fatty alcohol polyglycol ether with 8 molecules

Enriched Ethylene Oxide per Molecule Fefcfcalcohol ■ 917 "water

core sized and dried on a cylinder dryer and then with a weft of the size Nm 3 ^, which is not sized, woven into a J-abrasive raw fabric (twill fabric warp 38.5 threads / cm, weft 26.5 threads / cm) The raw abrasive cloth produced is without desizing with a finish consisting of

50 parts by weight of animal hide glue (300 sheets size 100 mp) 100 "of a copolymeric aqueous acrylate bis-dispersion

... from 45 percent by '* Sthylacrylat, 5 wt% N-Methyloiacrylamid, 50 percent vinyl acetate ^ 50 "Kaolin -, - ^

3 "- naphthalene sulfonate

797 "'water' '

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impregnated and dried and fixed at 145 ° C. with simultaneous stretching at ^{1 with} a lateral penetration of approx. 11.5 %. Of the

Finish content in the finished abrasive grain carrier fabric of type J

2 is 30 %. The average weight per unit area is 275 g / m ". The fabric is mainly used for skin glue binding.

Example 2

A warp yarn made from regenerated cellulose fibers (Polynosic type) or a cotton fiber material that has been boiled, washed and rinsed in an alkaline way, e.g. in flake form, before spinning, the fiber strength Nm 20 is In a sizing trough with a Fleet consisting of

120 parts by weight of reactive copolymeric aqueous acrylate

Disperslon, 45 wt. # A'thy Iac ry la t, 35 wt.% Butylaerylat, 10 wt.% Vinyl acetate, 10 wt.% N-Metliyiolacry lamid,

5 "water-soluble copolymer of 30 wt.%

Acrylic acid, 70 wt.% Butyl acrylate,

375 "water

sizing and then dried and fixed in an air duct at 140 ° C. There are 10 ■ # atro sizes ^{on 1 of the warp yarn.} After the daring (twill fabric warp ~ $ k thread / cm, weft 20.5 thread / cra) with a non-sized weft yarn of size Nm 27, the X-SeIsIeIfroh fabric is immediately without desizing with a finishing solution consisting of

120 parts by weight of reactive copolymeric aqueous acrylate

Disperslon, 45 wt.% Ethyl acrylate, 35 wt.% Butyl acrylate, 10 wt.% Vinyl acetate, 10 wt.% N-Metiiylolacry lamid of a copolymer of 30 percent by 5 ".% Acrylic acid

and 70% by weight of butyl acrylate, 20 "toluene,

60 "kaolin,

20 "dimethyloldihydroxyethylene urea,

2 "magnesium dichloride,

■ 773 "water

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impregnated and dried under stretching at 140 ° C - while c ρ wrestles the fabric widthwise by 11.5% - and fixed. The finish in the finished abrasive backing fabric of the

Type X is approx. 92 g / m "with a weight per unit area of

335.? / M ~ · Type X abrasive backing becomes water-resistant Abrasive cloth processed further.

Example 3

A warp yarn made of native cotton with a fiber strength of Nm 20, which was boiled in an alkaline form in flake form before being spun, washed and was rinsed, is in a sizing trough with a recipe, -consisting the end

70 parts by weight of oxidatively degraded starch 4 "coconut fatty alcohol polyglycol ether with 12

Ethylene oxide molecules per fatty alcohol, 926 "water

core sized and dried on an air drying machine at 130 C, the size content is 10% dry weight, and then woven with a non-sized weft yarn of size Nm 28 to form an X abrasive raw fabric (twill warp y \ thread / cm, weft 20.5 thread / cm) . The raw abrasive fabric produced in this way is without desizing, with a finish consisting of

60 parts by weight of animal hide glue (300 sheets size 100 mp) 50 "of a copolymeric aqueous acrylate dispersion

from 35 wt.% ethyl acrylate, 10 wt.% methacrylic acid, 4o wt.% methyl methacrylate and 15 wt. ^ i acrylamide,
30 "kaolin,

1 "naphthalene sulfonate,

859 "water

impregnated and dried and fixed with simultaneous stretching with a lateral penetration of approx. 12 % at 145 ° C. The finish content of the X-abrasive backing fabric is approx.

2 p

90 g / m with a / average basis weight of 335 g / m. The X-abrasive backing fabric is processed into an abrasive cloth with a partial synthetic resin bond

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B * ⁰

Example 4

A warp yarn made of cotton with a size of Nm 34, which before the Spinning in flake form has been boiled, washed and rinsed in alkaline form, is in a sizing trough with a liquor, consisting of

100 parts by weight of reactive copolymeric aqueous acrylate

Dispersion, 45% by weight of ethyl acrylate, 35% by weight Butyl acrylate, 10 wt. 3 vinyl acetate, 10 wt. 7? N-methylolacrylamide, 5 "water-soluble copolymer of 30 wt. #

Acrylic acid, 70 wt. ^ Butyl acrylate, 5 "oleyl alcohol polyglycol ether with 3 molecules

Ethylene oxide per fatty alcohol, 390 "water

sized and then dried and fixed in an air duct at 145 ° C. The Schllchtegehalt is 10? ■> atro. After weaving with a weft yarn of the same composition unsized the J-abrasive base fabric (twill chain yö threads / cm, weft thread 26.5 / cm) without desizing immediately with a finishing solution comprising

100 parts by weight of reactive copolymeric aqueous acrylate

Dispersion, 45 wt.>"Ethyl acrylate, 35 wt.% .Butylacrylat, 10 wt.% Vinyl acetate and 10 wt. ^ N-methylolacrylamide, 5" a water-soluble copolymer of

30 wt. ^ Acrylic acid and 70 wt. ^ Butyl acrylate, 20 "methylene chloride,

30 "kaolin,

20 "dimethylolglyoxalmonourein,

2 "magnesium chloride,

823 "water

dried impregnated and stretching at 150 ⁰ C - the tissue of width jumps by 10% - and fixed.

The finish content of the J-abrasive backing fabric is

2 2

35 g / m with an average basis weight of 275 g / m. That J-fabric becomes a waterproof loop with phenolic resin "

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grain binding further processed.

Example 5

A warp yarn made of 6o wt. # Regenerated cellulose (Polynosic type) or a cotton fiber material that has been boiled, washed and rinsed in an alkaline way, e.g. in flake form, before spinning, and 4o wt. # Polyamide 6.0 fiber of fiber strength Nm 34 is used in a sizing trough with a liquor consisting of

20 parts by weight of water-soluble copolymer from 30

Acrylic acid and 70 wt.% Butyl acrylate,

70 "reactive copolymeric aqueous acrylate

™ dispersion, 45 wt.% Ethyl acrylate, 30 wt.%

Butyl acrylate, 25 wt. ^ N-methylolacrylamide, 10 "urea,

3 "oleyl alcohol polyglycol ethers with 15 molecules

Ethylene oxide per molecule of fatty alcohol, 897 "V / water

sized and then dried and fixed in an air duct at 145 ° C. The size content is 8 % atro. After weaving with unsized yarn of the same composition, the J-abrasive raw fabric (twill warp yi thread / cm, weft 26.5 thread / cm) is immediately treated with a finishing solution consisting of without desizing

. 30 parts by weight of animal hide glue (300 sheets size 100 mp) "100" reactive copolymeric aqueous acrylate

Dispersion of 45 wt.% Of ethyl acrylate, 5 wt. $ £ N-methylol acrylamide and 50 wt.% Vinyl acetate,
30 "kaolin,

3 "methylene chloride,

827 "water

impregnated and dried and fixed with simultaneous stretching with a lateral indentation of 11 % at 175 ° C. The finish content of the J-abrasive backing fabric is Ö0 g / m 2

with an average basis weight of 270 g / m 2. The J weave is processed into abrasive cloth with partial synthetic resin bond.

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Example 6

A warp yarn thickness Nm 20 of 70 wt. $ Native cellulose which has been cooked in alkaline Plock shape and washed, and 30 wt.% Polyakrylnitrilfaser is in a size box with a formulation consisting of

50 parts by weight of starch 3 "coconut fatty alcohol polyglycol ether digested by acid degradation

Molecules of ethylene oxide per molecule of fatty alcohol 50 "reactive copolymeric aqueous acrylate

Dispersion of 15 wt.% Acrylamide, 10 wt.% Methacrylate, 45 wt.% Methyl methacrylate and 30 wt. ^ Ethyl acrylate 897 "Water

core sized and dried on the air dryer at 135 C, the size ^{content is 10 1} ^ atro, and then woven with unsized yarn material of thickness Nm 23 to form X-abrasive raw fabric (twill, warp 34 threads / cm, weft 20.5 threads / cm). The X-abrasive raw fabric produced in this way is without desizing with a finish consisting of

50 parts by weight of kaolin,

30 "of a water-soluble copolymer ^ from

30 wt.% Acrylic acid and 70 wt.% Butyl acrylate,

100 "of a copolymeric aqueous acrylate dispersion

from 45 wt.; t ethyl acrylate, 35 wt. % butyl acrylate, 10 wt. % vinyl acetate and wt. % N-methylolacrylamide 5 "toluene,

815 ". Water

impregnated and stretched to dry at 145 ° C - the fabric jumps in width by 12 % - and fixed. The finish content of the. X fabric is 90 g / m 2. The X-abrasive backing fabric is processed into a waterproof abrasive fabric.

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As proof of the technical port step, the after The webs obtained in Example 1-6 were further treated by finishing as follows:

The impregnation is followed by a squeegee finish on the stamp side using starch and crosslinking aqueous copolymeric acrylate dispersion based on methyl, ethyl, butyl, methacrylic or aqueous acrylonitrile-butadiene-styrene dispersion and on the grain side a spread consisting of a copolymer acrylate dispersion (for example, 45 wt.% Ä'thylacrylat, 35 wt. '£ butyl acrylate, 20 wt.% acrylonitrile, 10 Qevi.% N-methylol acrylamide _) or epoxy resin-curing agent mixture as described in the German patent specification 1 ™ 226 451 and in French patent specification 1 4 ^ 4 056. A phenolic resin base binder and then the abrasive grain and the phenolic resin cover binder are applied to the prepared abrasive backing fabric.

The abrasive fabric tape obtained shows a good bond, good Flexibility, high wet strength and good adhesion of the finish to the non-desized fabric.

The abrasive backing fabric finished in accordance with the invention is after impregnation according to the intended use, further treated in the conventional manner by means of finishing, e.g. Coated, dried and calendered on the stamp and grain side.

To test the adhesive effect achieved, the prepared abrasive backing fabric was primed with phenolic resin and then electrostatically abrasive (electro corundum or silicon carbide) grit no. 40 applied and pre-dried or pre-hardened in the slope. Thereafter a phenolic resin binder with appropriate filler and dye additives was used to create the second binder layer applied and the entire system., again on the slope dried and then cured. Pre-cooked after curing the abrasive backing cloth was used to restore its hygroscopic equilibrium in moist

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- 13 air atmosphere conditioned: and then rolled up

The abrasive cloth produced in this way was then subjected to a mechanical breaking process - using abrasive cloth technology * Manufacture referred to as "Flexen" - subject and "to Abrasive cloth belts verarbelV-et. These were put on a belt sander Clamped and tested in the test grinding process. In this test grinding process, one according to the invention was made produced abrasive cloth with a conventionally sized, then not desized and then conventionally finished abrasive backing fabric by test grinding compared. With a constant pressure load, the grinding was carried out from a defined iron pipe. Further the surface of the abrasive cloth after the test grinding process with regard to sanding and grain breakage visually assessed. The benchmark for value is the grinding time achieved until the abrasive grain has broken out completely. The bond strength of the abrasive cloth finish was also assessed by applying a phenolic resin intermediate layer and laminating this sample to sheet metal using the same phenolic resin checked. The sample was cured and, after air conditioning, the peel strength and the point of the Peeling determined.

Belt sander
machine Kornaus
break from Ge
weave after: Peeling
attempt Peeling
he follows Traditionally sneaked
did not kill abrasive cloth ~
desized and here
Conveniently impregnated 2 minutes 7.2 kg between
plain
and finishing Sneaked according to the innovation
tete abrasive cloth with
according to the invention
Arbitration and finishing
impregnated 14 minutes 17 kg Tissue.
tears

The tests show that the abrasive grain fabric web after

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of the present invention in several respects surprisingly V / eis-e improved present ·; ..

The present invention also relates to a finishing agent, which is intended for finishing the kerngeschlichteten warp and dnc ungeschlichceten weft yarn for the production of abrasive grain carrier fabric sheets and which is characterized in that this in ^{w;? J} membered medium organic solvent and swelling agent en'halmen which at temperatures from 15 - ^ 5 ⁰ C a swelling agent and at £ 5 - 200 ° C a solvent for the entire length of a part of the heat on the warp thread, and the finishing agent is a binder combination which in the preferred embodiment is composed as follows, and its use is explained in more detail in the following examples.

Example 7

A sized as in Example 3; -; and blown yarn material is impregnated as follows:

120 parts by weight of copolymeric aqueous aorylate dispersion

75 Gev;.. ./ 1 ethyl acrylate, 15 wt $ 2 acrylonitrile and 10 Gevi '''N-methylolacrylamide, 10 "water-soluble copolymer is at from 30% Gevi.

Acrylic acid and "0 wt.; * Butyl acrylate, 10" toluene,

60 "kaolin,

50 "degraded starch ioxydntlv)

750 "water

and dried under stretching at 130 ⁰ C. The finish

2 '

is So g / m with an average plan: ewK * ht of \ ^v »^ V The X fabric is suitable for phenolic resin linings:; att wac-iWr-fV .- 'fe'n abrasive fabric.

Example 3

• An abrasive raw fabric produced as in Example 4 · λ'ι: \ 1

• Impregnated with the following recipe

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100 parts by weight of acrylate version (as in example 7)

10 "methylene chloride

20. "· -. ·; Coconut fatty alcohol polyglycol ether with 6 ethy-

Ionox id molecules-η 'O- ". Kaolin,

'* · 0 ". Animal Hau'-leira (300 sheets IAO mp) .-. ■

7ciO ". Water

and our Recrcunt- · dried at 1-Ί5 C and fixed. The apprytur content was 75 ß / m "with an average weight per unit area of? 70 fi / m of the abrasive backing fabric. It is suitable for waterproof abrasive fabrics.

Example 9

A loop fabric produced as in Example 2 is used

impregnated with a subsequent finish

60 parts by weight of animal hide glue (300 sheets size 100 mp) 50 ^l! copolymeric aqueous acrylate dispersion

35 Gevt.vj Sthylacrylat, 10 Gew .. ^ Methacrylic acid, ^ O Gew.ν? ¹ methyl methacrylate and 15% by weight of acrylamide,

30 "'- kaolin,
30 "'coconut fatty alcohol polyglycol ether with 5

lenoxide molecules dissolved 1: 1 in test benzine (330 "water - ^; -

and under " ¹ " stretching at 1-J5 C, dried and fixed. The Appro turgehalt is 90 g / m with an average area weight

of 335 g / m '. The X weave is said to be preferred for partial resin weave can be used.

Example 10 '' V

A raw abrasive fabric produced as in Example 6 is used

impregnated with the following finish

100 parts by weight of copolymeric aqueous acrylate dispersion

45 wt.; ^ Ethyl acrylate, 35 wt. % Butylacry- ■ ._,., ..-:. lat, 10 wt.% vinyl acetate, 10 percent.?> N-Methylolaerylamid ·

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20 parts by weight of methylene chloride

30 "kaolin

2C "Dimethylolglyoxalmonourein

2 '' magnesium chloride

... 23 "'.vasser

and dried and stretched at l ^ü 5 ^{O C for fixation.} The X-abrasive backing fabric has an average basis weight of 395 g / m ^. The X-fabric is used for phenolic resin bonds.

Example 11

A raw abrasive fabric produced according to Example 3 is used with

impregnated afterwards

50 parts by weight of kaolin

30 ". VJasp-.erlöFliches copolymer of 30 wt.%

Acrylic acid and JO wt.% Of butyl acrylate

100 "copolymeric aqueous acrylate dispersion

45 Gevr.fi · ethyl acrylate, 35 wt.% Butyl acrylate, 10 wt. # Vinyl acetate and 10 wt.% Of N-methylolacrylamide

10 "coconut fatty alcohol polyglycol ether with δ ethyl

lenoxjd per molecule '

310 "V / water

and dried and fixed with stretching at 145 ° C. The X-

Abrasive backing fabric has a finish content of 90 g / m 2

with an average basis weight of 335 g / m 2. It will preferably used for phenolic resin bonds.

Figure 1 shows: under A the core sized and finished Warp thread A without boundary layer and the finished weft thread B.

As a raw abrasive fabric for the production of abrasive grain backing fabrics e.g. the fabrics listed in the table below are also suitable.

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Totti! Technical kvjdtm over Sehleifrohgewbt

(jwwbtsrt

üiiulung number of wheels / ee

. Warp length ücnuuncnty.

strong M Iheor. Tissue-

Warp direction Shot dir. weight g / i

Raw fabric weight (sizedj g / i

Tear resistance
iwttnctitung
break 1. örochd.
kp / c « % 15th Tear resistance
Weft direction
Fractional Fractional
kp / ci % 9 16 Ib 11th ö Ib I / rt b 21 17th 1b b 24 I / 11th ti 23 17th IU b 27 1b 12th b 3. 2 B ' ⁶ 30th 20th

j-ow .- * uper carded l'A 3b, 5 26.5 to
O J4! W »body käaat 2: 1 3b, 5 26.5 so
00 J-Bw.-Köpw eakc
chewed 2: 1 3b, b 2b, 5 O X-Öw-twill weighed 2: 1 32.5 23.5 CO X-ßw-twill cards 2: 1 34.0 20.5 approx X-Uw-Kbper eako
gekäaat 2: 1 34.0 20.5 X-GW twill 'cards 2: 1 34.0 20.5 xx-BW "* oper carded 3: 1 32.5 10.0

34 34 34 34 34 34 20th 34 20th 2 B 20th 2 B 20th 2U 1? 10

191.5

iai, 5

191.5

232, -243 ,.

243.00

2 / 2.5
370.0

210 2ib 21b

270 2 / over 270

3ÜU 417

Claims (1)

Claims Abrasive grain carrier interwoven fibers, thereby marked that ".." a) the warp thread ge ^ chlich-et ..nd finished and aie Sizing and finishing without boundary layer! ' tied together fe b) the weft thread has a finish. 2. Abrasive grain carrier ge v / er: el: ahn according to claim 1, characterized in that the warp thread was opened with a core is provided. . ^. Abrasive grain traction fabric web according to claim 1 or 2, characterized marked because:? the finish located on the warp thread and the weft thread by finishing, with a Finishing agent, which contains organic solvent emulsified in the aqueous medium, which at temperatures from 15 - 'o ^ C a swelling agent and above C5 - 200 "° C a solvent for the on -uem warp thread ) Sizing is arranged. 4. Abrasive grain backing fabric web according to one of claims 1 to 3i characterized in that the woven fibers are cotton, regenerated cellulose fibers, in particular from Type polynosic fibers, as well as their mixtures with each other, as well as admixtures of synthetic fibers, especially polyester and polyamide fibers. As far as this Are made of cotton fiber materials, these are alkaline before being processed into warp yarns by one or more Washing and rinsing processes have been freed from the anti-adhesive components. 909849/0873 BADORIGiNAU 5 · - chleirkomträgerneviobebahn according to one or more of the Ariyprüone 1 to · *, characterized in that the contain ?. Warp thread contains a Gchiioh ^ o -which was composed in finishing like -success "-: - 9- ¹ weight steep d'ir? H acid degradation unlocked May:--. Re i? - or potato starch - 20 "Fe ^ t ^ lcor. Ol polyflycol ether, preferred wise kc lcosf er ta lkohol riding 5 - 12 - 50 "" copolymer, c-re aqueous acrylate dispersion from "5 C? 3V. ^ A'thy 1 acrylate, 10 Gew.i? I4et-ha- ° T-yi <5äu:" e, 40 Gew. ^ Hethyl ^ ethaerylct 'and IZ Gew-Γί Acrylair.id , 95'7 - "'^ O" VJasser. "". Web of abrasive grit backing fabric according to one or more of the Claims 1 to 4, characterized in that the contained The warp thread contains a size that was composed as follows during the finishing process: 1-25 parts by weight of water laudable copolymers from " -% of acrylic acid and 70 wt .; 30 wt. " Butyl acrylate, 3-15 "coconut fatty alcohol polyglycol ether with 5-12 ethylene oxide per fat molecule, do "copolymeric aqueous acrylate dispersion . from 45% by weight Sthylacrylat, 35 wt% butyl acrylate, 10 wt% vinyl acetate and 10 wt% N-methylolacrylamide, -... Ö70 "water. 7, abrasive grain backing fabric web according to one or more of the Claims 1 to 6, characterized in that the sized warp thread has a finish without a boundary layer and the weft thread has a finish which was composed as follows during the finish, 909849/0873 -Χίο - 100 weight pieces of animal hide glue (300 sheets size 100 mp) 'OC -' 30 "- ::" copolymers of aqueous acrylate .. Disperöion of 35 wt% - 20 wt% Athylacr / lat, 5 wt ^ - 25 wt% ML-thacrylbüure, 0 wt ^ - 40% by weight Mev;... Iylnx.-methacrylate, 5% by weight of acrylonitrile.. 0 wt.% - 45 butyl acrylate and 5 wt. % - 15 wt. % N-methylolacrylamide, - 10 '' Kokopfetta alcohol polyglycol ether with 5-1? Ethylene oxide per molecule of fatty alcohol, - 35 "r-.chlorinated hydrocarbon, loaded vorzurt methylene chloride, contains. Abrasive grain carrier web according to one or more of Claims 1 to ^r ·, characterized in that the sized warp thread has a finish without a boundary layer and the weft thread has a finish which was composed as follows during finishing - 150 parts by weight of an aqueous copolymeric acrylate Dispersion of 45 wt% -.. 20% by weight of ethyl acrylate, 5 wt% -. 25% by weight methacrylic acid, 0 wt% -.. $ 40 weight methyl methacrylate, 5% by weight -.. 25 wt .; Acrylonitrile, 0 wt ". ^ -. 45% by weight butyl acrylate and 5 wt% -. 15% by weight N-methylolacrylamide. - 20 "· water-soluble copolymer made of 30 wt. Acrylic acid and 70 wt.% Butyl acrylate, 5 - 40, ", -.- Diraethylolglyoxalmonourein, 1 - 5 "magnesium chloride, 1 - 30 "toluene, 75S - 940 ^ir water ... contains .. 909849/0873 9 · Process for the production of the 5 ^ hIe-If'tornträgergewe webbing according to one or more of the Arr-prUche 1 - o, characterized in that »ier Kor-" f :: "Ip? Η resohl i ih ^ et , preferably core-sized, is 'rCet ^' - aden and weft faders. 7uv 1e ^T .vebebahn are blown and then the fabric is finished V .-. 1 approx. BAD LOCATION. Blank page