DE1419431A1 - Method and device for finishing or gluing fiber fleeces, feathers, fabrics, etc. - Google Patents

Description

EIEKTHOCHEMISGHE FABHIK KEKPEl GMBE. KempenZMdrh., July 7, 1961

Dr.i, l / T '

Construction for finishing or gluing fiber fleeces, threads, fabrics, etc.

Eb is known to use nonwovens, threads, fabrics, etc. for the purpose of Finishing or gluing with solutions from animal, vegetable or synthetic * adhesives. The application These finishing agents or adhesives are usually done in such a way that solutions of these products are given to the finishing agent or to be disguised Squeegee, foams or material on one or both sides fluff or by passing the material through solutions. Afterward the drying takes place in such a way that hot air or hot air is applied to the iVLaterial to be dried using known devices Infrared rays act or by the finished material strips over, heated to a maximum of 100 G, drying cylinders runs. "You have to avoid putting the material in yet wet or damp condition under themselves or with heated surfaces comes into contact, - as far as it is a little solid in itself f-iaterial is - to prevent sticking or sticking together. First After complete drying, such r.materials can be used in the course their further processing are rolled up or placed on top of one another.

The type of drying under the action of warm air or radiation requires a lot of space and relatively large machine units. The efficiency in terms of utilization of the supplied energy in the drying process is low, especially through the necessarily bed in- ¹ Le air circulation.

On the other hand, there is also the fact that the finished or glued Surfaces have a rough surface even when the finishing agent or adhesive is applied very evenly.

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A drying τοπ with such adhesive finishing agents LABEL FOR Well heated to a maximum of 100 ⁰ C drying cylinder has proved just as beneficial for solid tissue such as Baptist, carpets and others. Such a method has not yet become known for loose material. Nor was there any reason to use higher temperatures than a maximum of 10O ⁰ O-, since yellowing, deformation and burns of the material were to be feared.

Furthermore, in the shown and known methods of Throughput of I / I material to be dried, glued or finished is relatively small for easily recognizable reasons.

It has now been found that, contrary to all expectations, the object described above can be achieved by gluing and / or finishing fiber nonwovens, threads, woven fabrics, etc. using aqueous solutions, foams or dispersions of vegetable, animal and synthetic materials Glues that can still contain surface-active substances by using solutions, foams or dispersions that contain at least 2 parts of water per 3 parts of dry matter, and the glued and / or finished goods by direct filling of the glue or Appretseite old heated Vfalzen a drying subjects, with temperatures from 170 to 230 ⁰ G, preferably 210 to 220 ⁰ C are observed. _; .- "_ -..-.-- ..- 1 _.; ■■ - ■.: _ ^:.

In this way it is possible by a too .Hold immediately after completion of 'contact between the heating surface and of glued area "' entering '''' evaporation, the temperature of both the Trockenfilmes.als of the treated material at the Ve rdamp prüfungsgesellschaft temperature, · an extremely rapid drying effect and to achieve completely smooth, glossy coatings or gluing *

The aqueous solutions or dispersions of vegetable, animal or synthetic glues or adhesives, which may still contain surface-active bodies such as ethylene oxide addition products, alkylarylsulfohates, etc., are preferably applied as foams to the material to be finished or glued, if necessary by means of a doctor blade ''"

- 3 BAD OFUGiNAL

930 3/0

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or elnex "pressure roller distributed over the surface or - if this is desired - pressed into the Ilaterial and then immediately then a pressureless one in the manner described Contact drying on plates; heated rollers, subjected,

Surprisingly, the resulting anti-fouling pad prevents one Glue on so that the finished and glued materials. .

In this way it is possible to use adhesives and finishing agents · !! of all kinds, as long as they can be applied in the form of aqueous solutions, to carry out coatings or glueing in extraordinarily economical way both with regard to the 'rrociorunr used energy expenditure as well as with regard to the Performance per square meter of heating surface and next to it in a 4working ~ gang to achieve a surface effect that is not in the same flawless form in other Y / elae such as the following Calendering can be achieved.

A large praktiscne importance ^f ewinnt this method for the production of nonwoven materials that Oberfläcnenbehandlung for everyone of nonwoven fabrics (V / atteverleimung), for the finish of G-ev / provide all kinds, f ^ r coating Liaterialien, .wobei even the Gumming paper webs, as is customary in the manufacture of adhesive rolls, for example, can be carried out in this way without damaging the n'ieüei'belebunrseipenschaiten of the applied I.eimfilraes.

Sgemäiie erfindnn-for carrying wex ^v the Aporeturmittel on the basis of known animal and / or ofl ^ nzliehen and / or synthetic glues alone or with per se known surface-active bodies, such as Aethylfiiox ^ donlagerungsprodukte, Alk ^ '- larylsulfonate etc. -mixed. It does not matter whether the combination of the above-mentioned components already takes place in the dry finishing agent itself, in the finishing agent solution or only during the preliminary finishing stage. The mixtures are used as foams, solutions, dispersions or emulsions. ·. . .

BATH

These mixtures can also be used for finishing purposes per se "known products are added. These are to be understood, for example, fillers such as kaolin, ghinoclay, talc, latex, rubber, weighting salts such as Epsom salts, pigments, pigments, chemicals to reduce flammability, plasticizers, such as an sulfonated OeIe or Ph thai acid derivatives, as well as urea, Glycerin, hardening agents and the like.

example 1

A fleece made of finely fiberized cellulose is foamed on one side by means of a foam application device, namely with a glue solution, which contains 200g / l of the following mixture:

90 parts by weight of a 45 $ aqueous polyvinyl acetate emulsion lphthalat 3 parts by weight Dibut ^Tr

7 parts by weight of an approximately 80% strength tetrapropylene benzene sulfonate.

After foaming, the applied foam is pressed into the fiber fleece through a flexible hook plate and immediately afterwards fed to a drying drum, which is heated by 2 radially arranged oil burners, which are electronically controlled and has a temperature of 220 C on the roller surface. The speed of the dryer drum is adjusted so that at the moment of the nonwoven fabric is completed by the drying drum, the drying ^ Erade fens, wherein the developing water vapor is discharged in a manner known per s. By adjusting the pressure of the lime sheet, with very slight pressure, a fiber fleece is obtained that is only superficially glued; with stronger pressure and with thinner fleece, a thoroughly glued material is obtained, the surface always having a glossy, smooth film coating.

Example 2

A printed cotton fabric is treated with a solution according to Example 1 foamed and treated accordingly, kan receives a filmed Material that has a chintz-like character with a glossy effect that makes the colors shimmering.

_ 5. BATH

809808/0

Example 3

A woven carpet, which base fabric comprises jute, is on the back with a 35 follow Lederleimlösung, further 10 ^σ / Ό contains an approximately 80 foipen Tetrapropylenbenzolsulfonates, beschäumt and according to Example 1 and further treated. 2 The result is a uniform, mirror-smooth finish which, when the carpet is placed on a smooth surface, prevents the carpet from slipping through effective adhesive forces.

Example 4

A fiber fleece, consisting of a mixture of white wool and regenerated cellulose, is ^{foamed on both sides with a 25% solution of a magnesite leather glue that contains 7 c} / o of a tetrapropylene benzene sulfonate and fed synchronously with a woven carpet over a drying cylinder, the surface temperature of which is 200 ⁰ C, the fleece side is guided over the roller under pressure. The fiber fleece is glued through and through by the penetrating glue solution, at the same time laminated onto the carpet and receives a flat, even surface on the floor side.

A carpet made in this way represents a combination between a woven upper part and a non-woven laminated lower part.

- 6 BAD GfiiGINAL

80 9808/06 * 2 *

Claims (1)

Pat ent a η s ρ ru ^ ch Method and device for finishing and gluing nonwovens, threads, fabrics, inter alia, using aqueous solutions, foams or dispersions of vegetable, animal and synthetic glues which may also contain surface-active substances, characterized in that such solutions, foams or dispersions are used which contain at least 2 parts water to 3 parts of dry matter, and the glued and / or appretierte V / arengut by direct contact of the glue or Appretseite with heated rolls to a drying subjects, with temperatures of 170 - 23O ⁰ G, preferably 210-220 ⁰ C. BATH 809808/0 6 24