SE458214B - Fibre material treatment for chemical consolidation - Google Patents

Fibre material treatment for chemical consolidation

Info

Publication number
SE458214B
SE458214B SE8502556A SE8502556A SE458214B SE 458214 B SE458214 B SE 458214B SE 8502556 A SE8502556 A SE 8502556A SE 8502556 A SE8502556 A SE 8502556A SE 458214 B SE458214 B SE 458214B
Authority
SE
Sweden
Prior art keywords
polymer
added
dried
fibers
pulp
Prior art date
Application number
SE8502556A
Other languages
Swedish (sv)
Other versions
SE8502556D0 (en
SE8502556L (en
Inventor
A O K Johansson
Original Assignee
Sca Development Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sca Development Ab filed Critical Sca Development Ab
Priority to SE8502556A priority Critical patent/SE458214B/en
Publication of SE8502556D0 publication Critical patent/SE8502556D0/en
Publication of SE8502556L publication Critical patent/SE8502556L/en
Publication of SE458214B publication Critical patent/SE458214B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent paper
    • D21H27/008—Tissue paper; Absorbent paper characterised by inhomogeneous distribution or incomplete coverage of properties, e.g. obtained by using materials of chemical compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)

Abstract

Cellulose fibres are treated in water which includes a surfactant. The fibre is then dewatered and dried. It is then added to a polymer in a liq. in a finely divided form e.g. as a pulp, and stirred.

Description

'du 458 214 10 15 20 25 2 avvattnas fibermaterialet, torkas och finfördelas. En lösning av poly- propen i xylen i en koncentration av 1-2 % beredes och det torkade och finfördelade fibermaterialet tillsättes lösningen så att fiberkon- centrationen uppgår till ca 2 % och blandningen uppvärmes till en temperatur av 100-115 OC. Efter 15 minutef'tas fibermaterialet upp ur lösningen, pressas till en torrhalt av ca 20 % och torkas. 458 214 10 15 20 25 2 the fibrous material is dewatered, dried and comminuted. A solution of polypropylene in xylene in a concentration of 1-2% is prepared and the dried and finely divided fibrous material is added to the solution so that the fiber concentration amounts to about 2% and the mixture is heated to a temperature of 100-115 ° C. After 15 minutes, the fibrous material is taken out of the solution, pressed to a dry content of about 20% and dried.

EXEMPEL 2 En massasuspension innehållande tensid framställes på samma sätt som i exempel 1. Efter omrörning i 15 minuter avvattnas fiber- materialet, torkas och finfördelas. Till en massasuspension av den beredda massan tillsättes polypropen i form av ett fint pulver i en mängd av 5-10 % räknat på massan. Efter omrörning avvattnas materialet och torkas.EXAMPLE 2 A pulp suspension containing surfactant is prepared in the same manner as in Example 1. After stirring for 15 minutes, the fibrous material is dewatered, dried and comminuted. To a pulp suspension of the prepared pulp is added polypropylene in the form of a fine powder in an amount of 5-10% based on the pulp. After stirring, the material is dewatered and dried.

EXEMPEL 3 Materialet framställes på samma sätt som i exempel 2 men med den skillnad att i stället för polypropen användes polyeten i pulverform. n EXEMPEL ä En vattenlösning av en nonjonisk tensid som marknadsföres under namnet Berol 09 (Berol Aktiebolag) beredes och i exempel1 angivna massan tillsättes så att massakoncentrationen uppgår till ca 0,5 %. Den använda mängden tensid motsvarar 1-3 kg per ton massa. Efter omrörning i 15 minuter avvattnas massan, torkas och finfördelas. En lösning av polypropen i xylen beredes och den torkade och finfördelade massan tillsättes så att massakoncentrationen uppgår till ca 2 till en temperatur av 100- í en koncentration av 1-2 % % och uppvärmes 115 OC. Efter 15 minuter tas massan upp ur lös- ningen, pressas till en torrhalt av ca 20 % och torkas.EXAMPLE 3 The material is prepared in the same manner as in Example 2 but with the difference that instead of polypropylene polyethylene in powder form is used. n EXAMPLE ä An aqueous solution of a nonionic surfactant marketed under the name Berol 09 (Berol Aktiebolag) is prepared and the pulp specified in Example 1 is added so that the pulp concentration amounts to about 0.5%. The amount of surfactant used corresponds to 1-3 kg per tonne of pulp. After stirring for 15 minutes, the mass is dehydrated, dried and comminuted. A solution of polypropylene in xylene is prepared and the dried and comminuted pulp is added so that the pulp concentration amounts to about 2 to a temperature of 100- at a concentration of 1-2%% and heated to 115 ° C. After 15 minutes, the pulp is taken out of the solution, pressed to a dry content of about 20% and dried.

Uppfinningen är icke begränsad till de angivna utföringsexemplen, utan kan varieras inom ramen för uppfinningstanken.The invention is not limited to the stated exemplary embodiments, but can be varied within the scope of the inventive idea.

Claims (6)

10 15 20 _3,__ 458 214 P a t e n t k r a v10 15 20 _3, __ 458 214 P a t e n t k r a v 1. Sätt att påföra syntetiska, termoplastiska polymerer på cellu- losafibrer i avsikt att underlätta konsolidering av fibrerna vid torr- formning, k ä n n e t e c k n a t av att fibrerna först behandlas i vatten innehållande en tensid, att materialet därefter avvattnas och torkas, att materialet sedan finfördelas och blandas med polymeren i en vätska under omrörning.A method of applying synthetic thermoplastic polymers to cellulosic fibers in order to facilitate consolidation of the fibers in dry forming, characterized in that the fibers are first treated in water containing a surfactant, that the material is then dewatered and dried, that the material is then comminuted. and mixed with the polymer in a liquid with stirring. 2. Sätt enligt kravet 1, k ä n n e t e c k n a t av att fiber- materialet efter torkningen slås upp i vatten och att polymeren till- sättes i pulverform.2. A method according to claim 1, characterized in that the fibrous material is dissolved in water after drying and that the polymer is added in powder form. 3. Sätt enligt kravet 1, materialet efter torkningen och finfördelningen sättes till en lösning k ä n n e t e c k n a t av att fiber- av polymeren i ett organiskt lösningsmedel, företrädesvis ett cykliskt lösningsmedel, t ex xylen, under uppvärmning. ä.3. A method according to claim 1, the material after drying and atomization is added to a solution characterized in that the fiber of the polymer in an organic solvent, preferably a cyclic solvent, eg xylene, is heated. ä. 4. Sätt enligt kravet 1 - 3, den syntetiska termoplastiska polymeren har en smältpunkt av 40-22000, företrädesvis en _ 170 °c.A method according to claims 1-3, the synthetic thermoplastic polymer has a melting point of 40-22000, preferably a 170 ° C. 5. Sätt enligt kravet 3, värmníngen sker till en temperatur av 70-150OC, företrädesvis till en temperatur av 80-110°C.A method according to claim 3, the heating takes place to a temperature of 70-150 ° C, preferably to a temperature of 80-110 ° C. 6. Sätt enligt kravet 1, k ä n n e t e c k n a t av att k ä n n e t e c k n a t av att upp- k ä n n e t e c k n a t av att poly- meren utgöres av en polyolefin.6. A method according to claim 1, characterized in that it is known that the polymer consists of a polyolefin.
SE8502556A 1985-05-23 1985-05-23 Fibre material treatment for chemical consolidation SE458214B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8502556A SE458214B (en) 1985-05-23 1985-05-23 Fibre material treatment for chemical consolidation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8502556A SE458214B (en) 1985-05-23 1985-05-23 Fibre material treatment for chemical consolidation

Publications (3)

Publication Number Publication Date
SE8502556D0 SE8502556D0 (en) 1985-05-23
SE8502556L SE8502556L (en) 1986-11-24
SE458214B true SE458214B (en) 1989-03-06

Family

ID=20360324

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8502556A SE458214B (en) 1985-05-23 1985-05-23 Fibre material treatment for chemical consolidation

Country Status (1)

Country Link
SE (1) SE458214B (en)

Also Published As

Publication number Publication date
SE8502556D0 (en) 1985-05-23
SE8502556L (en) 1986-11-24

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