BG28240A3 - Filter material and method of its obtaining - Google Patents

Filter material and method of its obtaining

Info

Publication number
BG28240A3
BG28240A3 BG037507A BG3750777A BG28240A3 BG 28240 A3 BG28240 A3 BG 28240A3 BG 037507 A BG037507 A BG 037507A BG 3750777 A BG3750777 A BG 3750777A BG 28240 A3 BG28240 A3 BG 28240A3
Authority
BG
Bulgaria
Prior art keywords
cellulose ester
filter material
suspension
preparing
staple fibers
Prior art date
Application number
BG037507A
Other languages
Bulgarian (bg)
Inventor
Charles KEITH
Richard Tucker
Original Assignee
Celanese Corp
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 Celanese Corp filed Critical Celanese Corp
Publication of BG28240A3 publication Critical patent/BG28240A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/40—Formation of filaments, threads, or the like by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/06—Cellulose esters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)
  • Artificial Filaments (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Филтърен материал, предназначен за използване главно като филтърен за цигари, характеризиращ се с това, че се състои от нетъкан листообразен материал, включващ от 65 до 95% целулозно-естерни щапелни влакна с дебелина от 1,0 до 8,0 дение на едно елементарно влакно и дължина от 0,31 до 1,59 сантиметра и от 5 до 35% целулозно-естерни фибрети метод за получаване на филтърния материал, характеризиращ се с твоа, че включва етап на смесване на 5 до 35% целулозно-естерни фибрети в целулозноестерните щапелни влакна, за да се формува готов свързан самоподдържащ се лист, като процентите са изразени с оглед на крайния продукт. Метод за получаване на филтърния материал, характеризиращ се с това, че включва етапи на получаване на суспензия от целулозно естерни щапелни влакна и целулозно-естерни фибрети във вода, смесване на суспензията, за да се получи хомогенна смес от щапелно влакно и фибрети, разстилани на суспензията върху порьозна повърхност, която позволява изцеждане на водата от разстланата влакнеста структура, изсушаване на влакнестата структура и повдигане на така оформения лист от порьозната повърхност. Патентните претенции са формулирани в 10 точки.A filter material intended for use primarily as a cigarette filter material, characterized in that it consists of a non-woven sheet material comprising 65 to 95% cellulose ester staple fibers having a thickness of 1.0 to 8.0 denier per unit fiber and a length of 0.31 to 1.59 centimeters and from 5 to 35% cellulose ester fibrils, a method of preparing the filter material, characterized in that it includes the step of mixing 5 to 35% cellulose ester fibrils in the cellulose ester staple fibers to form a finished bonded self-supporting sheet, the percentages being expressed in terms of the final product. A method of preparing the filter material, characterized in that it includes the steps of preparing a suspension of cellulose ester staple fibers and cellulose ester fibrates in water, mixing the suspension to obtain a homogeneous mixture of staple fiber and fibrates spread on the suspension on a porous surface, which allows the water to be squeezed out of the laid fibrous structure, drying of the fibrous structure and lifting of the sheet thus formed from the porous surface. The patent claims are formulated in 10 points.

BG037507A 1976-10-06 1977-10-05 Filter material and method of its obtaining BG28240A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73003976A 1976-10-06 1976-10-06

Publications (1)

Publication Number Publication Date
BG28240A3 true BG28240A3 (en) 1980-03-25

Family

ID=24933659

Family Applications (1)

Application Number Title Priority Date Filing Date
BG037507A BG28240A3 (en) 1976-10-06 1977-10-05 Filter material and method of its obtaining

Country Status (26)

Country Link
JP (1) JPS5345468A (en)
AT (1) AT370293B (en)
AU (1) AU514462B2 (en)
BE (1) BE859459A (en)
BG (1) BG28240A3 (en)
BR (1) BR7706686A (en)
CA (1) CA1076912A (en)
DE (1) DE2744796A1 (en)
DK (1) DK441177A (en)
ES (1) ES467483A1 (en)
FI (1) FI772956A (en)
FR (4) FR2367133A1 (en)
GB (1) GB1562134A (en)
GR (1) GR66108B (en)
IL (1) IL53062A (en)
IN (1) IN148341B (en)
IT (1) IT1087755B (en)
LU (1) LU78254A1 (en)
NL (1) NL7710795A (en)
NO (1) NO773391L (en)
NZ (1) NZ185357A (en)
PT (1) PT67104B (en)
SE (1) SE7711170L (en)
SU (1) SU860678A3 (en)
TR (1) TR20555A (en)
ZA (1) ZA775993B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147413A (en) * 1981-03-10 1982-09-11 Asahi Chem Ind Co Ltd Filter medium for high-performance air filter and production thereof
TW241198B (en) * 1993-09-06 1995-02-21 Daicel Chem A tobacco filter material and a method of producing the same
CN1219797C (en) 1994-09-22 2005-09-21 大世吕化学工业株式会社 Cellulose derivatives
JP3420359B2 (en) * 1994-10-21 2003-06-23 ダイセル化学工業株式会社 Filter material for tobacco smoke, fibrous cellulose ester and method for producing the same
EP0709037B1 (en) * 1994-10-31 2001-05-02 Daicel Chemical Industries, Ltd. A tobacco filter material and a tobacco filter as produced using the same
JP3606950B2 (en) * 1995-05-31 2005-01-05 ダイセル化学工業株式会社 Cigarette filter and manufacturing method thereof
JP3677332B2 (en) * 1995-10-20 2005-07-27 ダイセル化学工業株式会社 Tobacco filter material and tobacco filter using the same
DE19753195A1 (en) * 1997-11-21 1999-05-27 Reemtsma H F & Ph Biologically decomposable filter for cigarettes
DE19951062C2 (en) * 1999-10-22 2002-04-04 Rhodia Acetow Gmbh A high performance cigarette filter
US20060021302A1 (en) * 2004-07-30 2006-02-02 Bernard Bobby L Anti-microbial air filter

Also Published As

Publication number Publication date
IL53062A0 (en) 1977-12-30
FR2381853B1 (en) 1982-04-02
ATA713377A (en) 1982-08-15
IN148341B (en) 1981-01-24
GR66108B (en) 1981-01-16
FR2381853A1 (en) 1978-09-22
FI772956A (en) 1978-04-07
IL53062A (en) 1980-09-16
FR2367133B1 (en) 1982-03-26
PT67104B (en) 1979-03-13
FR2381480A1 (en) 1978-09-22
ES467483A1 (en) 1978-10-16
JPS5345468A (en) 1978-04-24
NL7710795A (en) 1978-04-10
NZ185357A (en) 1980-05-08
LU78254A1 (en) 1978-01-26
FR2381840A1 (en) 1978-09-22
SE7711170L (en) 1978-04-07
AT370293B (en) 1983-03-10
IT1087755B (en) 1985-06-04
BR7706686A (en) 1979-05-02
DK441177A (en) 1978-04-07
NO773391L (en) 1978-04-07
PT67104A (en) 1977-11-01
FR2367133A1 (en) 1978-05-05
ZA775993B (en) 1979-05-30
GB1562134A (en) 1980-03-05
TR20555A (en) 1981-11-05
DE2744796A1 (en) 1978-04-13
SU860678A3 (en) 1981-08-30
CA1076912A (en) 1980-05-06
BE859459A (en) 1978-04-06
AU514462B2 (en) 1981-02-12
AU2929077A (en) 1979-04-05

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