WO1986004367A1 - Method at manufacture of carbon-coated fibre material - Google Patents

Method at manufacture of carbon-coated fibre material Download PDF

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Publication number
WO1986004367A1
WO1986004367A1 PCT/SE1985/000502 SE8500502W WO8604367A1 WO 1986004367 A1 WO1986004367 A1 WO 1986004367A1 SE 8500502 W SE8500502 W SE 8500502W WO 8604367 A1 WO8604367 A1 WO 8604367A1
Authority
WO
WIPO (PCT)
Prior art keywords
carbon
fibre material
manufacture
tenside
pulp
Prior art date
Application number
PCT/SE1985/000502
Other languages
French (fr)
Inventor
Hans Einar LUNDSTRÖM
Original Assignee
Sca Development Aktiebolag
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 Aktiebolag filed Critical Sca Development Aktiebolag
Priority to DE1986900315 priority Critical patent/DE245260T1/en
Publication of WO1986004367A1 publication Critical patent/WO1986004367A1/en
Priority to DK416786A priority patent/DK416786D0/en
Priority to NO863642A priority patent/NO863642L/en
Priority to FI873110A priority patent/FI873110A0/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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/07—Nitrogen-containing compounds
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments

Definitions

  • This invention relates to a method of manufacturing a fibre material coated with atomized particles of active carbon.
  • a fibre material coated with atomized particles of active carbon is used as absorption material , for exanple, in gas masks, protective clothing, at waste disposal and, above all, in bandages.
  • absorption material for exanple, in gas masks, protective clothing, at waste disposal and, above all, in bandages.
  • the material absorbs bacteria and odours from infected wounds and assists in a rapid healing of the wound.
  • Active carbon is well-known as absorption material and is since long used in many different connections. In certain connections, however, it is an advantage if the active carbon could be available in sheet fom.Progosals have been made earlier to produce such sheet form.
  • One proposal implies that a normal rayon fabric is exposed to an atmosphere of carbon dioxide at an increased temperature of about 300oC, whereafter a partial carbonizationn of the fabric is brought about by heating to about 900oC. This method, however, is time-consuming and expensive, and the resulting properties of the material did not satisfy the expectations.
  • fibre material coated with active carbon has been proposed to manufacture a fibre material coated with active carbon by a method in aqueous solution.
  • fibre material have been used cotton and asbestos, which were disintegrated in water and to which atomized carbon was added at heavy stirring.
  • the atomized active carbon is applied on a fibre material in aqueous suspension by adding a tenside to the suspension.
  • active carbon in sheet form is produced in that the atomized carbon is applied on cellulose fibres in suspension, and that thereafter sheets are formed of the suspension.
  • the amount of carbon contained in the carbon - cellulose pulp mixture is 1-65%.
  • the amount of added tenside should be so that the tenside concentration in the fibre suspension is 10 -7 - 10 -1 %.
  • Suitable tensides have proved to bequarternary ammonium compounds based on dinonylphonol,for example Berocell 564.
  • a certain amount of the material was shaken in a solution of methylene blue, the material was filtered off, and the colour depth of the solution was measured in a spectrophotometer.

Abstract

A method of manufacturing fibre material containing atomized active carbon. According to the invention, the method is carried out in aqueous suspension with the addition of a tenside.

Description

Method at manufacture of carbon-coated fibre material
This invention relates to a method of manufacturing a fibre material coated with atomized particles of active carbon. Such material is used as absorption material , for exanple, in gas masks, protective clothing, at waste disposal and, above all, in bandages. As a component in bandages, the material absorbs bacteria and odours from infected wounds and assists in a rapid healing of the wound.
Active carbon is well-known as absorption material and is since long used in many different connections. In certain connections, however, it is an advantage if the active carbon could be available in sheet fom.Progosals have been made earlier to produce such sheet form. One proposal implies that a normal rayon fabric is exposed to an atmosphere of carbon dioxide at an increased temperature of about 300ºC, whereafter a partial carbonizationn of the fabric is brought about by heating to about 900ºC. This method, however, is time-consuming and expensive, and the resulting properties of the material did not satisfy the expectations.
It further has been proposed to manufacture a fibre material coated with active carbon by a method in aqueous solution. As fibre material have been used cotton and asbestos, which were disintegrated in water and to which atomized carbon was added at heavy stirring.
The problem, however, has been to make the carbon particles adhere to the fibres. It was tried to solve this problem by adding certain binders to the aqueous solution. The effect of the binder, however, is low, and at the same time the properties of the material are affected in negative direction.
This problem is solved by the present invention in a simple and effective way.
According to the invention, the atomized active carbon is applied on a fibre material in aqueous suspension by adding a tenside to the suspension. According to an especially important embodiment of the method according to the invention, active carbon in sheet form is produced in that the atomized carbon is applied on cellulose fibres in suspension, and that thereafter sheets are formed of the suspension.
The amount of carbon contained in the carbon - cellulose pulp mixture is 1-65%.
The amount of added tenside should be so that the tenside concentration in the fibre suspension is 10 -7 - 10-1 %.
Suitable tensides have proved to bequarternary ammonium compounds based on dinonylphonol,for example Berocell 564.
For measuring the absorption of the material produced an absorption test with methylene blue was used.
A certain amount of the material was shaken in a solution of methylene blue, the material was filtered off, and the colour depth of the solution was measured in a spectrophotometer.
At experiments for the manufacture of cellulose fibres coated with active carbon different pulp types were used, viz. unbleached pine sulphate pulp, bleached pine sulphate pulp, bleached birch sulphate pulp and chemi-mechanical pulp, so-called CTMP. From the different pulp types a suspension with a concentration of 3 g/l was made. The desired carbon amount was added to 1 litre of the suspension in question. To the pulp suspension a cationic tenside was added in an amount of 0,02 ml/g pulp. After careful stirring resulting in the safe wetting of all carbon, the mixture was moulded to sheet form. After the moulding, the sheet was pressed and dried on a rotary drier at 60ºC for 2 hours. The results obtained are shown in the Table below. Charged Real Retent- Absorption carbon carbon ion amount amount Theor. Theor.
Pulp porport.
% % % mg MB/g mg MB/g mg MB/ g carbon %
X)
Carbon - 114
Unbleached 0 0 25 pine 10 5,7 57 sulphate 20 16,5 83 pulp 30 15,3 51 30 38 58 79
Bleached 0 0 0 pine 10 5,9 59 sulphate 20 14,8 74 pulp 30 23,8 79 20 27 84 74
Bleached 0 0 17 birch 10 7,3 73 sulphate 20 18,4 92 pulp 30 24 80 24 40 46 60
CTMP 0 0 22 10 8 80 20 13,2 66
30 25,6 85 28 46 46 61
X) MB = methylene blue
As is apparent from the test results, it is possible to make sheets of carbon andcellulosepulp with good retention of the carbon and without deteriorating the absorption capacity of the carbon. The invention is not restricted to the embodiments described, but can be varied within the scope of the invention idea.

Claims

Claims
1. A method at the manufacture of fibre material containing atomized active carbon in aqueous suspension, c haract er ¬i z ed in that prior to the addition of the active carbon a tenside is added to the aqueous suspension of the fibre material.
2. A method as defined in claim 1, c h ar a c t er i z e d in that the tenside is used in a concentration of 10-7 -
10-1 %.
3. A method as defined in claim 1 or 2, c haract erized in that the tenside consists of a quarternary ammonium compound of dionylphenol.
4. A method as defined in the claims 1-3, charact erized in that the fibre material consists of cellulose pulp.
PCT/SE1985/000502 1985-01-15 1985-12-04 Method at manufacture of carbon-coated fibre material WO1986004367A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE1986900315 DE245260T1 (en) 1985-01-15 1985-12-04 METHOD FOR PRODUCING CARBON-COATED FIBER MATERIAL.
DK416786A DK416786D0 (en) 1985-01-15 1986-09-02 PROCEDURE FOR THE MANUFACTURING OF COATED FIBER MATERIAL
NO863642A NO863642L (en) 1985-01-15 1986-09-12 PROCEDURE FOR MANUFACTURING CARBON COATED FIBER MATERIAL.
FI873110A FI873110A0 (en) 1985-01-15 1987-07-14 FOERFARANDE FOER TILLVERKNING AV KOLBEKLAETT FIBERMATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8500177A SE451205B (en) 1985-01-15 1985-01-15 SET FOR MANUFACTURING FIBER MATERIAL COATED WITH ACTIVE COAL
SE8500177-4 1985-01-15

Publications (1)

Publication Number Publication Date
WO1986004367A1 true WO1986004367A1 (en) 1986-07-31

Family

ID=20358773

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1985/000502 WO1986004367A1 (en) 1985-01-15 1985-12-04 Method at manufacture of carbon-coated fibre material

Country Status (6)

Country Link
EP (1) EP0245260A1 (en)
DK (1) DK416786D0 (en)
FI (1) FI873110A0 (en)
NO (1) NO863642L (en)
SE (1) SE451205B (en)
WO (1) WO1986004367A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8945287B2 (en) 2006-05-09 2015-02-03 Cocona, Inc. Active particle-enhanced membrane and methods for making and using the same

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO127414L (en) * 1968-10-17 1900-01-01 Ransburg Electro Coating Corp
US3034947A (en) * 1956-04-25 1962-05-15 John R Conlisk Gas-aerosol filter material
US3266973A (en) * 1963-07-25 1966-08-16 Richard P Crowley Method of preparing adsorbent filter paper containing crystalline zeolite particles, and paper thereof
GB1173143A (en) * 1965-09-20 1969-12-03 Secr Defence Improvements in Protective Clothing
FR2216377A1 (en) * 1973-02-01 1974-08-30 Ghh Basel Ag Filtration felt for liq. purificn. - with sheet of coarse fibres backed by network of fine fibres
US3969268A (en) * 1974-12-31 1976-07-13 Toyobo Co., Ltd. Process for preparing active carbon fibers
US4239516A (en) * 1979-03-08 1980-12-16 Max Klein Porous media to separate gases liquid droplets and/or solid particles from gases or vapors and coalesce entrained droplets
US4289513A (en) * 1978-03-27 1981-09-15 The Mead Corporation Activated sorbtion paper and products produced thereby
EP0144553A1 (en) * 1983-09-12 1985-06-19 American Cyanamid Company Non-woven activated carbon fabric
EP0145849A1 (en) * 1983-12-15 1985-06-26 American Cyanamid Company Filter paper

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034947A (en) * 1956-04-25 1962-05-15 John R Conlisk Gas-aerosol filter material
US3266973A (en) * 1963-07-25 1966-08-16 Richard P Crowley Method of preparing adsorbent filter paper containing crystalline zeolite particles, and paper thereof
GB1173143A (en) * 1965-09-20 1969-12-03 Secr Defence Improvements in Protective Clothing
NO127414L (en) * 1968-10-17 1900-01-01 Ransburg Electro Coating Corp
FR2216377A1 (en) * 1973-02-01 1974-08-30 Ghh Basel Ag Filtration felt for liq. purificn. - with sheet of coarse fibres backed by network of fine fibres
US3969268A (en) * 1974-12-31 1976-07-13 Toyobo Co., Ltd. Process for preparing active carbon fibers
US4289513A (en) * 1978-03-27 1981-09-15 The Mead Corporation Activated sorbtion paper and products produced thereby
US4239516A (en) * 1979-03-08 1980-12-16 Max Klein Porous media to separate gases liquid droplets and/or solid particles from gases or vapors and coalesce entrained droplets
EP0144553A1 (en) * 1983-09-12 1985-06-19 American Cyanamid Company Non-woven activated carbon fabric
EP0145849A1 (en) * 1983-12-15 1985-06-26 American Cyanamid Company Filter paper

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Chemical Abstracts, vol 82 (1975) abstract No 32714 *
Chemical Abstracts, vol 98 (1983) abstract No 127 998 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8945287B2 (en) 2006-05-09 2015-02-03 Cocona, Inc. Active particle-enhanced membrane and methods for making and using the same

Also Published As

Publication number Publication date
FI873110A (en) 1987-07-14
EP0245260A1 (en) 1987-11-19
NO863642D0 (en) 1986-09-12
NO863642L (en) 1986-09-12
SE8500177D0 (en) 1985-01-15
SE451205B (en) 1987-09-14
SE8500177L (en) 1986-07-16
FI873110A0 (en) 1987-07-14
DK416786A (en) 1986-09-02
DK416786D0 (en) 1986-09-02

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