BE625951A - - Google Patents

Info

Publication number
BE625951A
BE625951A BE625951DA BE625951A BE 625951 A BE625951 A BE 625951A BE 625951D A BE625951D A BE 625951DA BE 625951 A BE625951 A BE 625951A
Authority
BE
Belgium
Prior art keywords
article
fibrous material
web
laminated
adhesive
Prior art date
Application number
Other languages
French (fr)
Publication of BE625951A publication Critical patent/BE625951A/fr

Links

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Description

       

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  ".ARTICLES STRATIFIES EN MATIERE FIBREUSE" 
La présente invention a pour objet un article stratifié en matière fibreuse, ainsi que le procédé de fabrication de cet article. 



     On   fabrique généralement les nappes   stratifiées   de matière fibreuse en assemblant les différentes couches à l'état encore humide et en les comprimant. L'article   ainsi   

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   produit   présente cependant   l'inconvénient   que dans de   mauvai-   ses conditions les diverses couches tendent à se séparer facilement. C'est pourquoi on a proposé de coller ensemble les différentes couches, ce qui demande cependant des mani-   pulations   et installations supplémentaires. En outre,on risque que l'article stratifié devienne facilement raide et cassant. 



   La présente invention permet d'éviter   ces     inconvé-   niente et de fabriquer un article dont les différentes cou- chea sont réunies entre elles   d'une   manière indissoluble et qui présente malgré la simplicité de sa fabrication des qua- lités très avantageuses. 



   On obtient ce résultat en produisant un article en matière fibreuse constitué de plusieurs nappes reliées soli- dement entre elles, le dit article comportant au moins deux nappes en matière fibreuse dont   l'une   au moine est adhésive. 



   L'article conforme à   l'invention   est caractérisé par le fait que les différentes nappes adhésives sont solide- ment reliées entre elles ou à des nappes non adhésives d'une manière indissoluble. 



     L'adhérence   des nappes de matière fibreuse est pro- duite en ajoutant des substances thermoplastiques De manière connue, on peut ajouter des solutions ou des dispersions à la matière fibreuse ou bien imprégner la nappe ultérieurement de telles solutions. Les articles conformes à l'invention sont particulièrement avantageux, lorsque leur adhésivité est obtenue par introduction de fibres thermoplastiques et/ou de matières analogues. 



   Les articles stratifiée conformes à l'invention sont particulièrement avantageux quand la nappe de matière 

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 fibreuse adhésive est constituée en grande partie de fibres synthétiques. Les papiers en fibres synthétiques se carac-   térisent   en effet par leur bonne solidité et la stabilité des dimensions, Cependant, la   nature   même des fibres synthétique peut entraîner certains inconvénients. C'est ainsi que les papiers à écrire et à dessin sont difficiles à gommer.

   Cet inconvénient peut être supprimé en utilisant l'article atra-   tifié   en matière fibreuse conforme à   l' invention.   En   utili-   eant comme nappe de matière fibreuse adhésive un papier synthétique et comme seconde nappe un papier cellulosique, l'article obtenu . possède les qualités désirées du papier synthétique de support et reste néanmoins bien gommable grâce. à la couche de papier cellulosique appliquée. 



   La stabilité accrue des dimensions de cet article permet avantageusement son emploi en imprimerie. Pour pou- voir utiliser les procédés et machines habituels, on emploie de préférence un article stratifié contenant du papier syn- thétique adhésif comme couche du milieu, dont les deux côtés sont   liée   à une couche de papier cellulosique, de sorte que la surface à imprimer est tout à fait similaire aux papiers habituels. 



   En outre un tel article à trois couches de   fabri-   cation symétrique tend beaucoup moins   à   se rouler. 



   La nappe stratifiée en matière fibreuse conforme à l'invention présente l'avantage   d'être   d'une fabrication simple. Ainsi peut-on utiliser pour la fabrication de l'ar- fiole conforme   à   l'invention des nappes déjà finies tirées de rouleaux, ce qui permet un travail indépendant de la vitesse de la machine à papier, la vitesse de travail étant réglée d'après les propriétés des substances thermoplastiques de 

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 soudage. La réunion des différentes nappes s'effectue   sous   l'effet de la pression   et/ou   de la chaleur, de préférence par cylindrage. 



     En   utilisant comme nappe adhésive, dans   l'article   stratifié conforme à   l'invention   une nappe constituée en grande partie de fibres synthétiques, on obtient un   procède   simple et avantageux de fabrication de l'article stratifié du fait que le papier synthétique est combiné immédiatement après la formation d'une nappe prête à être enlevés,   mais.non   encore complètement consolidée avec la ou les nappes non adhé-   sives.   Sous   l'effet   de la chaleur   et/ou   de la pression, de préférence sous l'effet du cylindrage à chaud, la liaison des fibres à l'intérieur de la nappe de matière fibreuse et la réunion indissoluble des différentes nappes peuvent s'ef- fectuer en une seule opération.



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  ". LAMINATED ARTICLES IN FIBROUS MATERIAL"
The present invention relates to a laminated article of fibrous material, as well as the method of making this article.



     The laminated webs of fibrous material are generally produced by assembling the various layers while still wet and compressing them. The article as well

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   However, the product suffers from the drawback that under bad conditions the various layers tend to separate easily. This is why it has been proposed to glue the different layers together, which however requires additional handling and installations. Further, there is a risk that the laminated article will easily become stiff and brittle.



   The present invention makes it possible to avoid these drawbacks and to manufacture an article the different colors of which are joined together in an indissoluble manner and which, despite the simplicity of its manufacture, has very advantageous qualities.



   This is achieved by producing an article of fibrous material consisting of several webs firmly joined together, said article comprising at least two webs of fibrous material, one of which is adhesive.



   The article in accordance with the invention is characterized in that the different adhesive layers are firmly connected to each other or to non-adhesive layers in an indissoluble manner.



     Adhesion of the webs of fibrous material is produced by adding thermoplastics. In known manner, solutions or dispersions can be added to the fibrous material or the web can be impregnated subsequently with such solutions. The articles in accordance with the invention are particularly advantageous when their adhesiveness is obtained by introducing thermoplastic fibers and / or similar materials.



   The laminated articles according to the invention are particularly advantageous when the web of material

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 Fibrous adhesive is made up largely of synthetic fibers. Synthetic fiber papers are in fact characterized by their good strength and dimensional stability. However, the very nature of synthetic fibers can lead to certain drawbacks. This is how writing and drawing papers are difficult to erase.

   This disadvantage can be overcome by using the atatified article of fibrous material according to the invention. By using synthetic paper as a web of adhesive fibrous material and cellulosic paper as a second web, the article obtained. has the desired qualities of the synthetic backing paper and nevertheless remains easily erasable. to the applied layer of cellulose paper.



   The increased stability of the dimensions of this article advantageously allows its use in printing. In order to be able to use the usual methods and machines, a laminated article containing adhesive synthetic paper is preferably employed as the middle layer, both sides of which are bonded to a layer of cellulosic paper, so that the surface to be printed is quite similar to the usual papers.



   Further, such a symmetrically constructed three-layer article tends to curl much less.



   The laminated web of fibrous material according to the invention has the advantage of being simple to manufacture. Thus can be used for the manufacture of the flask according to the invention already finished webs drawn from rolls, which allows work independent of the speed of the paper machine, the working speed being adjusted to after the properties of thermoplastic substances of

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 welding. The different layers are brought together under the effect of pressure and / or heat, preferably by rolling.



     By using as an adhesive web, in the laminated article according to the invention a web consisting largely of synthetic fibers, a simple and advantageous method of manufacturing the laminate article is obtained because the synthetic paper is combined immediately afterwards. forming a web ready to be removed, but not yet fully consolidated with the non-stick web (s). Under the effect of heat and / or pressure, preferably under the effect of hot rolling, the bonding of the fibers inside the web of fibrous material and the indissoluble union of the different webs can take effect. - perform in a single operation.


    

Claims (1)

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BE625951D BE625951A (en)

Publications (1)

Publication Number Publication Date
BE625951A true BE625951A (en)

Family

ID=196954

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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