DE1504351B2 - Process for the production of a composite body consisting of sheets on top of one another - Google Patents

Description

1 '■■■ - ■■■■ ₂ ■ ■ ■

The invention relates to a method for manufacturing Fig. 1 is a schematic representation of a pre

len of a direction for carrying out the method according to FIG

the composite body. the invention,

It is one method of making one such Figure 2 is a schematic illustration of another

Composite body known, with an adhesive on 5 device,

selected locations on one side of a foam F i g. 3 is a perspective view of an in accordance with FIG

web applied, a second web on this side of the composite made of the invention,

placed and then both tracks together- F i g. 4 a plan view of a pressure roller for

be pressed. This composite body is melted

dig and elastic and is z. B. to produce 10 Fig. 3,

Related to garments. Since the adhesive is not shown in FIG. 5, a partial section through a according to FIG

on the entire surface of the foam sheet, composite body produced in accordance with the invention,

but only at certain points on these on- Fig. 6 schematically shows a view of another

is brought, there is no continuous hard design of a pressure roller,

Adhesive layer, and the two webs can _i5 F i g. 7 schematically shows a section through a

when bending or folding against each other, foam sheet after applying the adhesive

push so that the product is pliable and and

becomes elastic. . F i g. 8 is a view similar to FIG. 7 in the final state

The invention is based on the object of one of the composite bodies.

to create such a composite body that is not only ₂₀ The method can be illustrated using the example of FIG. 1

is supple and elastic, but also easy to understand. A foam sheet 10

ner surface additional depressions and he- from z. B. Polyurethane foam with each other &

exhibits elevations. The surface of the composite pores 11 lies on a carrier layer 12, \ _

pers thus receives a contour or an ornament, which is expediently made of a textile fabric or a

z. B. the character of a quilt. Such ₂₅ different material. Layer 12 is preferred

Composite with a surface pattern that is air-permeable to allow quick drying of the

body can be used to make clothing and also foam sheet 10 to facilitate.

Process quilts further. Likewise, both tracks 10 and 12 can be through one

use it to line containers, coat the walls of the pinch point 14 between the rollers 15 and 16

and use it wherever an elastic, _{30 is} carried out. The roller 15 is an engraved roller,

Shock-absorbing material is required, which is wetted with an adhesive 17, which is the same

has an attractive surface in good time. a stripping plate 18 is applied. In the present

In order to achieve the object, the invention provides the example of the adhesive having a color which, based on the known method, contrasts with the foam board 10,
that the adhesive is below the surface of one _35. The roller 16 is a cylinder with a smooth upper side of the foam sheet and applied to the surface of metal or rubber or rubber over the known compression of the drawn metal. The backing roll 16 may, if foam web is desired with a stretchable other to Oberflächenornamentierung be a web and at least partial curing of the roller 15 similar engraved roll, wherein the adhesive is of the pressure of the webs abgenom- _4O either a similar or a contrasting men and the foam sheet is engraved with a Beibehal pattern. Both rollers 15 and 16 are evaluated for compaction on the rollers driven synchronously with adhesive.

The 'surface of the roller 15 contains recesses on its remaining surface.

normal state springs back. gen 19, 20 and 21. Each recess is marked with the

The result is an elastic composite body which is filled with adhesive 17 which, for example, runs into the recesses 19 through capillary action in the areas treated with adhesive. When passing through, the thickness or depressions of the web 13 through the pinch point between the size of these depressions corresponds to the strength of the pressing together The printed surface has the original thickness of the superimposed ₅ o contact, which begins at position 22, with the laid lanes. the adhesive at positions 23 and 24 in the foam, in an expedient development, sees the invented fabric web 10 being embedded. The depth of the on this manure before that a laminar material with extensible manner embedded adhesive corresponds to the depth speed predominantly in the direction of the short dimensions of the recesses in the roller 15. The depth to solutions of the elongated 55 treated with adhesive to the the adhesive in the foam web 10 penetrates surface sections onto the foam web and impregnates it, fluctuates between the two. Pressure points 22, 23 and 24, but at every point

To produce a composite body, the adhesive penetrates transversely into the depth of the web.

has depressions on both sides, the invention can be seen from the wetted pressure points 26,

tion before that both broad sides of the foam sheet 60 27 and 28 that these relatively straight lines

be coated. Finally, the invention provides, running across the web 10,

before that a layer made of stretchable After applying the adhesive this is

Material pressed onto the foam sheet and at least partially

the compression force is decreased while wise brought to hardness. Is the adhesive z. Am

this position is still flexible. 65 a volatile carrier or a solvent

Using the example of the removal shown in the drawing, the adhesive is transferred when the

management forms the invention is explained in more detail. Web 13 via a heater 29 to expel min-

It shows at least part of the solvent curable, and that

3 4

The product is ready for the next step. are wetted. For example, the adhesive is 217

Some glue then becomes sticky. by a stripping pawl 218 onto the roller 215 and

The web 13 is then applied to a printing device on the roller 216 by partially immersing it

fed, for example, two nip rollers 29 a and 29 b, applied to a container 211 , the over-

which include a nip between them, 5 shots removed with another scraper 212

which is narrower than the normal thickness of the web 13. will.

This second compaction of web 13 after the surfaces of rollers 215 and 216 contain-

Adhesive 17 is made curable, sets the strength of the th recesses 219. In these, adhesive 217

Train down. In those areas where the back-

Adhesive was applied, keep the selected io kept.

th sections at their compacted state, and when the web 210 is passed through the

the unselected areas spring due to the pinch point 214 between the rollers

their elasticity back to their original strength. Recesses 219 gradually follow the path 210 in

This creates a certain contour on the web, brought pressure contact.

15 The recesses store adhesive in the

worn adhesive. To prevent, foam sheet 210 , essentially

that the wetted surfaces of the web 13 on the as described with reference to FIG. 1 was explained.

Pinch roller 29 α stick, it is sufficient, The patterns on rollers 215 and 216 can

this roller to cool with the usual adhesives, be identical to each other, and both rollers will

preferably driven to a temperature below 21 ° C. 20. The same or can be used on both rollers

After passing through the rollers 29a and various patterns to be engraved.
29 b sweep only those sections of the web which, after the adhesive has been applied, are free of adhesive, made fully curable to their original at least partially. In Fig. 2 strength is back, while the foam cells in the for this purpose an oven 229 with openings 231 and 232 for surfaces coated with adhesive in the deformed entry and exit of the web 210 .
The web 210 is then fed to two nip rollers 233 of the thickness of the plate in these areas 33 and 234, which cause a nip between them, which include a certain dimension

A second web 34 is thus over the web 13 below the normal thickness of the web 210 ,
sets that it adapts to their contour. In many cases it is desirable that the web 34 of the fabric webs 235 and 236 be stretchable on the top at least in one direction so that, respectively, the underside of the web 210 works better. The webs 235 and themselves better to the contour of the web 13 adapts. In 236, a knitted one is advantageously supplied from the supply rollers 237 and 238 to such a case. Drag rollers 241 and 242 control the fabric used. . 35 Tension in the railways.

It is desirable that the adhesive 17 also The second compaction of the webs 210, 235 and

the track 34 connects with the track 13. For example 236 decreases the strength of web 210 at the

the web 34 in FIG. 1 via a guide roller pinch point of rollers 233 and 234 and causes

35 is fed to an overlay roller 36, which rolls the web 34 that rolls the fabric webs 235 and 236 on the foam onto the web 13 and exerts sufficient pressure to adhere 40 fabric web 210 in those areas 220 to cause the two webs to adhere to the adhesive 217 are coated. The rollers ken. The roller 36 may for ease of use 233 and 234 are preferably heated. The heating must be heated. the rollers 233 and 234 facilitate the adherence of the

Of course, additional adhesive can be added to the fabric sheets 235 and 236 on the foam sheet

Attaching the web 34 to the web 13 uses 45 210. The heating is carried out e.g. B. electrical or

be what such an adhesive between the by steam. The roller temperature is z. B. at

Passage under the roller 29 a and under the roller 120 ° C or, more generally, in the range between

35a sprayed onto the surface of the web 13 at 65 and 175 ° C. In many cases it is advisable to

will. the fabric overlay as it passes between the

A support roller 36 b acts with the roller 50, rollers 233 and 234 more strongly than the foam web

36a together. The one between the rollers 36a and to be heated. This improves the adhesion. The in

36 b by passing the composite is therefore overall the pads 220 deposited adhesive bemäß the pattern of the pressure roller 15 is contoured and acts in that the walls of the cells adhere to one another, the foam carries in accordance with this contour, a web 210, and permanently deformed fabric overlay 34. In some cases, the 55 stay. Accordingly, after the fabric 34, these areas become partially transparent and the adhesive passes between the rollers 233 and 234 17 to be colored. no longer show their original strength, and than

In the device according to FIG. 1, the result of both sides of the foam is that the web 12 is previously deformed onto the foam web 210, 235, 236 according to a pattern, the web 10 is applied, and that the thickness is at the same time. 60 corresponds to the webs arranged by the pressure rollers 215 and 216 in relation to the fabric overlay 34 genes pattern.

is dimensioned so that the contour effect on the attractively decorated composite can be

Upper side of the finished composite predominates. thus with the device according to FIG. 2 manufacture,

Contour effects on both sides with z. B. the imitated quilt-like material the device shown in Fig. 2 is achieved. In 65 Fig. 3.

F i g. 2 is a foam sheet 210 between. 3 removes, the quilting

Rolls 215 and 216 performed. The rollers 215 cover-like composite body 310 made of an open

and 216 are engraved rollers coated with adhesive 217 porous elastic plate 311, e.g. B. made of polyurethane

foam, which is inserted between corresponding layers 312 and 313 made of cloth material. Knitted textile fabric is particularly useful because it is elastically stretchable and adapts to the pattern of the depressions 314 , which in the composite body 310 result in the quilt effect.

F i g. FIG. 4 shows one form of pressure roller useful in making the material of FIG. 3 is suitable. The roller 320 has a cylindrical surface 321 with depressions 322 which form a pattern with a grid-like structure.

While the in F i g. 2 and the corresponding method shown with the immediate Applying the adhesive to the foam sheet may be advisable in some cases be to wet the fabric overlay with the adhesive that is then applied when the Fabric and the foam sheet is applied to this so that essentially the same Result as in FIG. 2 entry.

F i g. 5 shows an embossed composite body 50, e.g. B. on the in F i g. 1 shown device can be produced and recesses 51 and 52 has. A surface sheet 53 consists of one knitted or woven material or from a plastic film, e.g. B. made of polyethylene or a Vinyl layer. In a preferred form, the material is extensible to provide deep contouring the layer plate to facilitate. The base layer 54 is applied before or after the deformation process attached or attached. It can also be omitted.

To produce the composite body 50, the adhesive is first applied in the manner described above applied. The adhesive contains a color component only in the case of a transparent web 53. the Tracks 50, 53 and 54 can be connected to one another in the manner described above.

As in Fig. 6, the pressure roller 61 has long projections 62 and short projections 63 for receiving adhesive 64 from a rubber roller 64 α . As the foam web 65 passes through the nip between the rollers 61 and 66, the adhesive is applied at 67, 68 and so on.

The longer protrusions 62 receive less adhesive, while the shorter protrusions 63 absorb a larger amount, so that essentially the same result as with the device according to FIG. 1 is reached. Various other types of pressure rollers can be used for application of the adhesive.

F i g. 7 shows a cross-section of a base layer 70 carrying a foam sheet 71 having a Has surface portion 72 which extends over the entire depth of the foam web, and another wedge-shaped portion 73 or adhesive attached to another selected area is applied. The layer is heated after the adhesive has been applied, as shown in Fig. 7, making the adhesive sticky, and then passed through a cold nip. After the shape recovery, the composite body shown in FIG. 8 results. Here the one points to the base layer 70 attached foam web 71 a compacted surface section 72 ', which corresponds to the printed Surface portion 72 corresponds, and another beveled surface portion 73 ', which in the generally has a contour corresponding to the pressure surface 73. This allows contours to be more desirable Form inclination as well as depth and essentially in an overlying layer (not shown) reproduce. The F i g. 7 and 8 therefore explain the manner in which the depth and The slope of the contour is determined by influencing the density of the adhesive applied with the roller 15 can be.

The composite body produced according to the invention is not only useful as a decorative material, but can also be used as a heat and sound insulator, e.g. B. on the walls of aircraft cabins, in motor vehicles, on room walls, as a housing lining, as a bed cover, on items of clothing and in other cases where decoration or insulation or both are desired is. In the case of automobile linings, its flexibility and elasticity greatly facilitate installation by untrained workers. Fire retardant or other coatings can be applied to its outside apply either before or after the treatment according to the invention, if such an application does not adversely affect the properties desired for the end product.

Claims (4)

Patent claims: 1. A method for producing one from one another Sheets of existing composite body, wherein an adhesive is applied to selected locations on one side of a foam sheet, another strip is placed on this side and both strips are pressed together, characterized in that the adhesive extends below the surface of one side applied to the foam sheet and after the known compression of the Foam sheet with another stretchable sheet and at least partially curing the The pressure of the adhesive is removed from the webs and the foam web under Maintaining compression at the adhesive treated areas on their remaining surface springs back to its original state. 2. The method according to claim 1, characterized in that a laminar material with Extensibility predominantly in the direction of the short dimensions of those treated with glue elongated surface sections is applied to the foam web. 3. The method according to claim 1 and 2, characterized in that both broad sides of the Foam web are coated. 4. The method according to claims 1 to 3, characterized in that a layer of stretchable made material pressed onto the foam sheet and the compression force decreased becomes while this layer is still stretchable. 1 sheet of drawings