DE1769735A1 - Method for the production of a porous textile floor covering, floor covering produced according to the method and method for laying it - Google Patents

Description

<' Ready to submit for

\ Forwarding received

Patent attorney

/ Dipl.- Ing.H. Lesser 1769735

Brevetex S ₀ A., Friborg (Schweia)

Method for dividing a porous textile Floor covering «manufactured according to the method Flooring and single installation method.

The present invention relates to a method ssur Production of a porous textile floor covering, the back of which = e side is coated in places with a pressure-sensitive adhesive, one floor covering produced according to the process and an EU process of its installation,

It is known "to coat the entire surface of the back of webs or plates with a pressure-sensitive adhesive, which is applied in the form of a solution or an aqueous dispersion, whereupon the solvent or the water is made to evaporate." Since the full-surface coating of covering sheets requires a lot of material, a device has already been developed which allows a strip-shaped coating of a sheet-like material with adhesive (British patent 788 547)

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Squeegee applied "whose knuras sink through under the squeegee" Cover the running web of fabric. In this way, adhesive strips form on the fabric web between the Kaamsink while the same adhesive zones are created, because the edges of the squeegee do not completely prevent the adhesive from admitting to the web of fabric running beneath them can prevent. Wall or floor coverings »by means of this known device are coated * can be speaking pad (wall or floor) only by means of this Adhesive strelfen are attached · When the adhesive ages if this loses its adhesive strength and the connection loosens, or it loses its cohesion and becomes a permanent adhesive. A securing additional adhesive is not possible because it is open a pressure sensitive adhesive »or the adhesive name strip» a dispersion adhesive cannot adhere, and a solution ■ the adhesive would be used and mixed.

This problem is to be eliminated by the invention, which creates the opportunity to take advantage of a partial flow » direct point or strip-shaped connection permanent bonding bit an inexpensive dispersion « Glue to join, but experience has shown that only after

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A fairly long tent results in adhesion if the watery Solvent evaporates and the remaining hair becomes one Fillet can form.

The method, which is the subject of the invention, for the production of a porous textile floor covering, the back of which is coated in places with a pressure-sensitive adhesive, is based on the fact that an adhesive, which is only applied when a pressure of at least 100 g / cm or at Erwär * ffiung at least 5O ⁰ C sufficient Fläohenhaf processing of the coating au soil ensures a maximum of about half of the Belagrttokeeite part of the area and musterföraig under Belas * solution of more than 3 «a wide non-tacky intermediate = vacate the sohmelBflttselgen state medium", respectively is applied to an orphan with depressions and is thus firmly connected to the back of the floor covering, so that the flooring parts that have remained non-sticky can be glued with aqueous adhesives (adhesive solutions or adhesive dispersions).

The method according to the invention also gives the possibility « kelt, in cases where a less permanent connection is desired will, on the second part of the procedure eu provided and a removable partial surface gluing can only be carried out by act!

Ee has found itself in practice that usual pressure sensitive adhesive have extraordinary specialist areas, in particular in addition to the known aging and the resulting uncertainty of the Bonding the major difficulty that your attaining

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In order to ensure sufficient adhesion, the pressure-sensitive adhesive “must be made so sticky that it adheres very well” which has the disadvantage in other cases “that sticking takes place immediately upon first contact with the floor, which can only be corrected by removing the whole covering upwards again . But this has general, extraordinary disadvantages, because dust particles, cement, concrete or hollow parts usually remain glued to the glue, which reduce the glue feeling to the extent that it is glued as well as it does when it is peeled off and hay laid later do a new place. With the one before «! Once bonded with the special adhesive mass, whose low tackiness can easily be pushed at room temperature until the correct position is reached, without any disadvantages that ai * & less experienced people know how to carry out the laying. As a result, for the first time “it is practically feasible to lay sheet goods on this catfish, because up until now it was absolutely impossible” an immediately adhering product, sheet next to sheet “to lie exactly parallel”, so that the ice can remain lying without later correction. · Both by dl «; Adhesive-free surfaces as attoh the low level of tackiness of the adhesive coating without any sruok or heating, can be brought about relatively easily here when laying. It is even possible to re-cut bahtts numbers and edges without difficulty to be carried out and only after this re-cutting with a final partial surface connection, for example this edge abutment>,

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this edge υ "edge hooh" uneven, bring it to an elevated temperature by means of a normal funnel and connect it to the floor with sufficient pressure while pressing on it. Sufficiently strong to say here so that an unwanted shift in the position does not take place, but also with the possibility of trackless Again withdrawal in ümiugsfalle because the Haftmaeee at Baumtem _"# temperature kohäsir let so strong that they fled under train τοη the subfloor whether HoIs, concrete, linoleum, etc., can be removed again · The heating temperature is selected here so that the compound becomes "noticeably sticky, but far below the flow point of the adhesive compound, as was required for the liquid application of the load-bearing adhesive compound to the flooring." In practice, this temperature will be between 60 and 100 ° and can be easily reached using a normal household or industrial hairdryer Send a hot air stream to the adhesive material su with the hair dryer or some other device, so that it softens and d By simply pressing ▼ on the top is fastened in places in a previously unknown, simple way ·

As an alternative to this heating, an activation of the Adhesive layer is also possible through strong pressure, for example by lawyers with an orphan or concrete orphan or by running out, which is of course the simplest means

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can cause adhesion in places by worming and in some cases by Druok »which in practice means a further significant reduction in the price of the laying gate. Sohlleaslloh the final permanent connection with the floor for those VaIIe ₉ where a wheelchair loading takes place or for other reasons a more similar connection is desired with a commercially available, cheap Kunatharsdispereions * glue or another adhesive, either by streaking this on the floor or on the goods token side will. When spreading on the floor, this can be done over the entire surface or by means of a toothed squeegee and the strip-shaped or dot-shaped adhesive clasps press the adhesive onto them by themselves, dare to rise from, for example, 0.5 to 1 mm

Put away on the tack-free areas "where" Houron Verdun

sof. ”Houron Ve

due to the porous floor covering, there is no longer any water has released, can produce a permanent bond by forming a film Yes, the adhesive is automatically pressed into the gaps that are free of adhesive by the Bakel coating. Activation The adhesive, even if it is caused by pressure or hit, does not interfere with the setting of the watery glue. In the case of heat " On the contrary, activation takes place more quickly due to the faster waaaerduneten.

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This laying technique achieves, in particular, that the weighting of the edge seams and other lower areas is avoided, since it was previously very time-consuming to prevent the covering from being lifted at these points and to cause reliable gluing this example of stairs and other nloht flat surfaces, ao that there sticking to dispersions was possible only if followed ble to setting an attachment with hailing it "*; Otherwise, you would have to resort to expensive and dangerous gluing with glue: a glue containing solvents. If one wanted to avoid the weighting of sheet-like gluing, one previously had to use an extremely attractive solvent adhesive, a so-called impact adhesive, at the edges of the sheet, which was both expensive and labor-intensive and, in particular, the risk of edges being distorted by excess adhesive The present invention avoids all these parts in a very defeating manner, and without being very expensive, because the use of agile solvents is avoided as a result of the use of 100% solids-containing Solvents accomodat hired "men so far, probably a bond with einlgemassen again be" seltlgungsfählgen aqueous adhesives was sulUssig, however, not with solvent adhesives, adhesive edges etc., L is a

Damage to the Ec- nn "ur result.

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Another object of the invention is a after Process of produced oporeal textile flooring Bit adhesive eiver backsohioht.

The procedure for laying such a floor covering is characterized by the fact that sub-purposes of easier relocation and the possibility of removal without a trace are those of eioh only a little sticky, strongly cohesive adhesive layer, therefore one Sufficient traction is brought about that after laying down and straightening the surface in the places required Immediate adhesion the adhesive layer is made more adhesive by heating or by applying "strong pressure, and that su" sütelich for an exceptionally strong permanent liability a » Gluing is done with a commercially available water-based adhesive, which is stuck on the floor or on the back of the goods later hardening a permanent bond «wipe the floor and the non-stick surfaces of the besieged tokels are guaranteed.

The invention is described below, for example, on the basis of τοη Drawings explained in which represents » Pig. 1 the rear view of a first implementation

a floor produced according to the method according to the invention · coverings in sheet form,

Fig. 2 shows the view of a “wide execution example, Fig. 5 shows the rear view of a third execution example, Fig. 4 shows the rear view of a fourth execution example

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5 shows the rear view of a fifth exemplary embodiment in the form of a plate, on an enlarged scale.

Fig «1 shows the top view of the back of a ge = wove carpet 1 in the form of sheet goods, the invention is coated with strips 2 of a pressure sensitive adhesive υ The pressure sensitive adhesive « Stripes 2 run near the edges of the web and parallel to them * You can apply any known on the back of the carpet Way to be applied. In doing so, however, it is important to ensure that not only an area of at least 50 # length remains free to accommodate the WUBSerigen glue to give enough attack surface, but that the strips that remain free are sufficiently wide, at least 3 to 5 mm for a sufficient adhesive surface

Fig. ₉ 2 shows a porous textile floor covering consisting of a needle felt web 1a, the rear side of which is provided with rows of pressure-sensitive adhesive strips 2a running in the direction of the web There are three adhesive dots in each case, regardless of where the cut is made, i.e. at A, B, C or D.

The same result - but with a lower amount of adhesive compound - is achieved if, according to FIG. 3, a porous, textile covering sheet Ib with oblique to the direction of the web »

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under a parallel strip 2b of adhesive dimensions · With any cut parallel to the edge, the distance between two points of pressure-sensitive adhesive is at the cutting edge - a, while with every cut running at right angles to the direction of the web, the distance is between two points of pressure-sensitive adhesive at the cutting edge «b · The distance b depends on the Angle OL , which is 45 ° in the roped embodiment example, but other options could also be chosen.

The back of the porous textile floor covering 1o after Pig. 4 has diagonal stripes 2c on the adhesive material When cutting dlesss flooring in any direction there will always be a favorable distribution of the glue dots along the cut edge

In the same or similar catfish as railways can auoh porous textile panels with a pre-timed grid of an adhesive * mass to be coated on the back · In VIg. 5 is the Top view of a eolohe plate Id geselgt »with the pattern» formally applied Haftmaeee with 2d be se is worthwhile. The plates can not only be coated with the adhesive on one side »there is also the possibility« in the BsJm su soled and then soak the one of its plates

The according to the inventive method on your return » Rarely porous textile floor coverings that have been coated with adhesive

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can mm - as desired - connected wiederabnehmbar or inextricably linked to the ground werdenο In the first case the lining only needs to be pressed, and then the other in the form of a strip or pattern brings about on the back of the covering existing adhesive material, the adhesive effect} if, however, a permanent connection If the floor covering is unsuitable, the back of the floor covering or the floor bit is coated with an aqueous adhesive, e.g. a dispersion, whereupon the floor covering is placed on the floor and remains permanently bonded to it after the water has evaporated.

In the case of tufted or woven floor coverings, the adhesive must be softened by means of a hair dryer or in some other way take place from below, which can be achieved by lifting the glued part of the covering can be easily accomplished.

Kormalerwelse will be the softening of Haftmaese tracks only Wi at the edges, particularly on the front shocks of two pads *, make, then a very simple installation that he is "with adhesion is permanent and adequate to the remaining land at the edges"

An improvement in the bond between the adhesive mass and the goods

occurs when the back of the goods, for example, is thermally « contains plastic fibers (felt made of thermoplastic fibers,

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Tufting made of thermoplastic threads or yarns) or with a layer of a softenable synthetic resin or resin mask. is covered.

According to the method according to the invention, floor coverings of all types are produced, for example needle felt coverings, tufted coverings with backing, woven coverings with and without back finish and carpet tiles.

Regarding the partial surface coating with the adhesive " various modifications are possible; for example Instead of straight stripes, corrugated stripes can also be applied to the back of the covering *

In addition, combinations of longitudinal tires with horizontal or diagonal tires can be provided.

109841/1768

The following exemplary embodiment serves to explain the method according to the invention:

To prepare the Haftmaeae used 20 parts by weight Aethylenaorylat copolymer, 20 ^w "polyisobutylene having a Molekularge"

weight of approx. 15Ό00,

45 "" rosin esters of glycols, 10 "^{" micro wax and 5 w} "butylated hydroxytoluene.

First, the 20 parts by weight of ethylene aorylate copolymer and the 20 parts by weight of polyisobutylene ^{are kneaded together in a double-Z kneader at about 130 °} C. and the resin is slowly added with constant kneading. Then the micro wax and the butylated hydroxytoluene are added and the goose is mixed thoroughly. The order of the finished adhesive "mass in the form of pattern takes place - also at a lemperatur of about 130 ⁰ C - by means of an orphan, in the grooves of 0.5 to 2.0 mm depth · -? and 4 to 15 mm wide are engraved. The adhesive compound filling these grooves is transferred to the substrate in strip form, while the excess adhesive compound located between the hats on the roll jacket is wiped off with the help of a doctor blade and into the high-viscosity adhesive compound located in a vessel into which the roller is immersed, to =

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Claims (1)

Patent claims: 1. A method for producing a porous text lien bottom "beläges whose back is locally coated with a" pressure-sensitive adhesive, characterized in that a Haftraasse, one upon the exercise of a pressure of at least 100 g / om or when heated to at least 5O ⁰ C Sufficient surface adhesion of the covering on the ground is guaranteed on a maximum of about half of the back of the covering and muaterför = measured, leaving more than 3 mm wide, adhesive-free spaces in the molten state by means of a roller provided with depressions and thus firmly attached to the The back of the lining is connected so that the non-sticky areas of the lining are accessible for gluing old aqueous adhesives (adhesive solutions or adhesive dispersions). 2. The method according to claim 1, characterized in that the adhesive is applied to places where there is a need for immediate adhesion, such as the edges of goods. 3. The method according to claim 1, characterized in that the adhesive is applied in strips diagonally or in waves to the direction of the web in order to avoid cuts in the web direction = direction and transversely to enable a favorable distribution of the adhesive dots. 109841/1768 4. Porous textile floor covering produced by the method according to claim 1 with an adhesive backing layer, 5. Procedure for laying a porous textile floor " Covering with an adhesive backing layer according to claim 41 thereby marked, that for the purpose of easier laying and the possibility of traceless removal, the at sioh only little sticky, strongly cohesive adhesive layer, resulting in a sufficient The right grip is brought to the point that after laying down and straightening the floor covering, the required immediate grip is required the adhesive layer is made more adhesive by heating or by applying strong pressure, and that in addition for a Exceptionally strong, permanent adhesion is made with a commercially available water-based adhesive, which is applied to the floor or painted on the back of the goods, after subsequent hardening a permanent bond between the floor and the guaranteed non-stick surfaces on the back of the covering 6. The method according to claim 5 »characterized in that, in the case of use, sufficiently air-permeable Floor coverings the adhesive layer was heated from above by means of blown hot air 109841/1768 ORIGINAL BATHROOM jer- 7c method according to claim 5 »characterized in that that the strong pressure is exerted by means of heavy rollers, 8. The method according to claim 5, characterized in that the strong pressure due to the use of the soil * bslages is effected. 9ο method according to claim 8, characterized thereby, that the strong pressure is caused by heavy walking. 10. The method according to claim 8, characterized in that that the strong pressure is caused by planes. 1 098 ^ 1 / 17G8