IT1127312B - Procedimento per l'eliminazione della fluorescenza dei candeggianti ottici - Google Patents

Procedimento per l'eliminazione della fluorescenza dei candeggianti ottici

Info

Publication number
IT1127312B
IT1127312B IT28326/79A IT2832679A IT1127312B IT 1127312 B IT1127312 B IT 1127312B IT 28326/79 A IT28326/79 A IT 28326/79A IT 2832679 A IT2832679 A IT 2832679A IT 1127312 B IT1127312 B IT 1127312B
Authority
IT
Italy
Prior art keywords
fluorescence
elimination
procedure
optical bands
bands
Prior art date
Application number
IT28326/79A
Other languages
English (en)
Other versions
IT7928326A0 (it
Inventor
Giuseppe Raspanti
Original Assignee
Apital Prod Ind
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 Apital Prod Ind filed Critical Apital Prod Ind
Priority to IT28326/79A priority Critical patent/IT1127312B/it
Publication of IT7928326A0 publication Critical patent/IT7928326A0/it
Priority to US06/145,489 priority patent/US4328069A/en
Priority to FR8023726A priority patent/FR2472050A1/fr
Priority to GB8038102A priority patent/GB2066317B/en
Application granted granted Critical
Publication of IT1127312B publication Critical patent/IT1127312B/it

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
    • 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
    • D21H21/14—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 characterised by function or properties in or on the paper
    • D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/686—Fugitive optical brightening; Discharge of optical brighteners in discharge paste; Blueing; Differential optical brightening

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Detergent Compositions (AREA)
IT28326/79A 1979-12-21 1979-12-21 Procedimento per l'eliminazione della fluorescenza dei candeggianti ottici IT1127312B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT28326/79A IT1127312B (it) 1979-12-21 1979-12-21 Procedimento per l'eliminazione della fluorescenza dei candeggianti ottici
US06/145,489 US4328069A (en) 1979-12-21 1980-05-01 Process for the elimination of the residual fluorescence resulting from optical bleaching agents
FR8023726A FR2472050A1 (fr) 1979-12-21 1980-11-06 Procede pour l'elimination de la fluorescence des azurants optiques
GB8038102A GB2066317B (en) 1979-12-21 1980-11-27 Paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT28326/79A IT1127312B (it) 1979-12-21 1979-12-21 Procedimento per l'eliminazione della fluorescenza dei candeggianti ottici

Publications (2)

Publication Number Publication Date
IT7928326A0 IT7928326A0 (it) 1979-12-21
IT1127312B true IT1127312B (it) 1986-05-21

Family

ID=11223367

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28326/79A IT1127312B (it) 1979-12-21 1979-12-21 Procedimento per l'eliminazione della fluorescenza dei candeggianti ottici

Country Status (4)

Country Link
US (1) US4328069A (it)
FR (1) FR2472050A1 (it)
GB (1) GB2066317B (it)
IT (1) IT1127312B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677167B5 (it) * 1985-05-08 1991-10-31 Sandoz Ag
GB8518489D0 (en) * 1985-07-22 1985-08-29 Sandoz Ltd Organic compounds
ITMI20121647A1 (it) * 2012-10-02 2014-04-03 3V Sigma Spa Abbattitori di fluorescenza per il trattamento superficiale della carta

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1268802A (en) * 1968-03-15 1972-03-29 Sandoz Ltd Process for counteracting the brightening effect due to an optical brightener
CH572128A5 (it) * 1973-10-19 1976-01-30 Sandoz Ag
US4098454A (en) * 1976-11-08 1978-07-04 Easter Robert C Newspaper receptacle

Also Published As

Publication number Publication date
US4328069A (en) 1982-05-04
GB2066317A (en) 1981-07-08
GB2066317B (en) 1983-07-27
FR2472050A1 (fr) 1981-06-26
IT7928326A0 (it) 1979-12-21
FR2472050B1 (it) 1984-10-26

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971223