ES2149346T3 - Procedimiento de fabricacion de papel. - Google Patents

Procedimiento de fabricacion de papel.

Info

Publication number
ES2149346T3
ES2149346T3 ES95907732T ES95907732T ES2149346T3 ES 2149346 T3 ES2149346 T3 ES 2149346T3 ES 95907732 T ES95907732 T ES 95907732T ES 95907732 T ES95907732 T ES 95907732T ES 2149346 T3 ES2149346 T3 ES 2149346T3
Authority
ES
Spain
Prior art keywords
impulse
value
duration
gray value
pixels
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES95907732T
Other languages
English (en)
Inventor
John Oliver Stockwell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ciba Specialty Chemicals Water Treatments Ltd
Original Assignee
Ciba Specialty Chemicals Water Treatments Ltd
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 Ciba Specialty Chemicals Water Treatments Ltd filed Critical Ciba Specialty Chemicals Water Treatments Ltd
Application granted granted Critical
Publication of ES2149346T3 publication Critical patent/ES2149346T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/48—Condensation polymers of aldehydes or ketones with phenols
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Making Paper Articles (AREA)
  • Image Processing (AREA)

Abstract

LA PRESENTE INVENCION SE REFIERE A UN PROCESO Y A UN DISPOSITIVO DE EMISION Y DE RECEPCION PARA LA TRANSMISION A DISTANCIA DE IMAGENES DE VIDEO CONSTITUIDAS POR UNA SERIE DE PIXELS, EN EL QUE EL VALOR DE GRIS DE CADA PIXEL, O DE CADA GRUPO DE PIXELS, ESTA DEFINIDO DE MANERA ANALOGICA POR UN VALOR DE TENSION DADA, EN EL QUE SE CONVIERTE EL VALOR ANALOGICO DE LA TENSION EN UNA PALABRA BINARIA CUYO VALOR DIGITAL ES UNA FUNCION DE ESTA TENSION. LA PRESENTE INVENCION SE CARACTERIZA EN QUE SE GENERA UN IMPULSO, CUYA DURACION ES UNA FUNCION DE DICHO VALOR DIGITAL, ESTANDO ESTE IMPULSO CONSITUIDO POR DOS PARTES, A SABER UNA PRIMERA PARTE DE IMPULSO CUYA DURACION ES INDEPENDIENTE DEL VALOR DE GRIS DEL PIXEL CONSIDERADO Y UNA SEGUNDA PARTE CUYA DURACION DEPENDE DE DICHO VALOR DE GRIS, Y SE AJUSTA LA DURACION DE LA PRIMERA PARTE DE IMPULSO EN FUNCION DE LA FRECUENCIA DEL IMPULSO GLOBAL DESEADO.
ES95907732T 1994-02-04 1995-02-06 Procedimiento de fabricacion de papel. Expired - Lifetime ES2149346T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9402169A GB9402169D0 (en) 1994-02-04 1994-02-04 Process of making paper

Publications (1)

Publication Number Publication Date
ES2149346T3 true ES2149346T3 (es) 2000-11-01

Family

ID=10749880

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95907732T Expired - Lifetime ES2149346T3 (es) 1994-02-04 1995-02-06 Procedimiento de fabricacion de papel.

Country Status (19)

Country Link
US (1) US5733414A (es)
EP (1) EP0695385B1 (es)
JP (1) JPH08508795A (es)
AT (1) ATE193915T1 (es)
AU (1) AU701218B2 (es)
BR (1) BR9505837A (es)
CA (1) CA2159592C (es)
DE (1) DE69517474T2 (es)
DK (1) DK0695385T3 (es)
ES (1) ES2149346T3 (es)
FI (1) FI954676L (es)
GB (1) GB9402169D0 (es)
MX (1) MX9504151A (es)
NO (1) NO953935L (es)
NZ (1) NZ279257A (es)
PH (1) PH31656A (es)
PL (1) PL180183B1 (es)
WO (1) WO1995021295A1 (es)
ZA (1) ZA95923B (es)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5595629A (en) * 1995-09-22 1997-01-21 Nalco Chemical Company Papermaking process
EP0773319A1 (en) * 1995-11-08 1997-05-14 Nalco Chemical Company Method to enhance the performance of polymers and copolymers of acrylamide as flocculants and retention aids
ZA9711714B (en) 1996-12-31 1998-06-25 Allied Colloids Ltd Processes of making paper and materials for use in this.
US6093217A (en) * 1997-02-05 2000-07-25 Akzo Nobel N.V. Sizing of paper
US6033524A (en) * 1997-11-24 2000-03-07 Nalco Chemical Company Selective retention of filling components and improved control of sheet properties by enhancing additive pretreatment
US6099689A (en) * 1998-02-17 2000-08-08 Nalco Chemical Company Production of paper and board products with improved retention, drainage and formation
EP1398413A2 (en) 1998-06-12 2004-03-17 Fort James Corporation Method of making a paper web having a high internal void volume of secondary fibers and a product made by the process
USD421714S (en) * 1998-07-10 2000-03-21 Jerry Moscovitch Catch
AU760487B2 (en) 1999-03-31 2003-05-15 Fpinnovations Retention agent comprising PEO
US6918995B2 (en) 2000-08-07 2005-07-19 Akzo Nobel N.V. Process for the production of paper
US6451169B1 (en) * 2000-12-20 2002-09-17 Nalco Chemical Company Structurally rigid polymer coagulants as retention and drainage aids in papermaking
US6444091B1 (en) * 2000-12-20 2002-09-03 Nalco Chemical Company Structurally rigid nonionic and anionic polymers as retention and drainage aids in papermaking
US7156955B2 (en) * 2001-12-21 2007-01-02 Akzo Nobel N.V. Papermaking process using a specified NSF to silica-based particle ratio
PT1456469E (pt) * 2001-12-21 2014-06-05 Akzo Nobel Nv Composição contendo sílica aquosa e processo a produção de papel
US20040138438A1 (en) * 2002-10-01 2004-07-15 Fredrik Solhage Cationised polysaccharide product
US20040104004A1 (en) * 2002-10-01 2004-06-03 Fredrik Solhage Cationised polysaccharide product
US7303654B2 (en) 2002-11-19 2007-12-04 Akzo Nobel N.V. Cellulosic product and process for its production
JP4770121B2 (ja) * 2004-03-30 2011-09-14 栗田工業株式会社 紙及び板紙の製造方法
JP5448853B2 (ja) 2007-03-15 2014-03-19 データレース リミテッド レゾルシニルトリアジン誘導体を主成分とする感熱性コーティング組成物
US8425723B2 (en) 2007-04-05 2013-04-23 Akzo Nobel N.V. Process for improving optical properties of paper
CA2696032A1 (en) * 2007-08-22 2009-02-26 Basf Se Laser-sensitive coating composition
WO2009059888A1 (en) * 2007-11-07 2009-05-14 Basf Se New fiber products
JP5645832B2 (ja) 2008-10-27 2014-12-24 データレース リミテッドＤａｔａｌａｓｅ Ｌｔｄ． 基材にマーキングするためのレーザー感受性水性組成物
EP2402503A1 (en) 2010-06-30 2012-01-04 Akzo Nobel Chemicals International B.V. Process for the production of a cellulosic product

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2549089C3 (de) * 1974-11-15 1978-12-14 Sandoz-Patent-Gmbh, 7850 Loerrach Verfahren zur Verbesserung der Retentions- und Entwässerungswirkung in der Papierherstellung
GB8602121D0 (en) * 1986-01-29 1986-03-05 Allied Colloids Ltd Paper & paper board
DE3683151D1 (de) * 1986-03-06 1992-02-06 Monsanto Co Fleckenabweisende nylonfasern.
US5538596A (en) * 1994-02-04 1996-07-23 Allied Colloids Limited Process of making paper

Also Published As

Publication number Publication date
MX9504151A (es) 1997-06-28
PL310978A1 (en) 1996-01-22
CA2159592A1 (en) 1995-08-10
FI954676A0 (fi) 1995-10-02
ZA95923B (en) 1996-02-06
AU1583095A (en) 1995-08-21
WO1995021295A1 (en) 1995-08-10
PL180183B1 (pl) 2000-12-29
DK0695385T3 (da) 2000-10-30
FI954676A7 (fi) 1995-10-02
GB9402169D0 (en) 1994-03-30
ATE193915T1 (de) 2000-06-15
AU701218B2 (en) 1999-01-21
DE69517474T2 (de) 2001-03-08
FI954676L (fi) 1995-10-02
JPH08508795A (ja) 1996-09-17
EP0695385B1 (en) 2000-06-14
DE69517474D1 (de) 2000-07-20
NO953935D0 (no) 1995-10-03
EP0695385A1 (en) 1996-02-07
CA2159592C (en) 2000-03-14
NZ279257A (en) 1998-05-27
PH31656A (en) 1999-01-12
BR9505837A (pt) 1996-02-27
US5733414A (en) 1998-03-31
NO953935L (no) 1995-10-03

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