EP1881108A1 - Composition de blanchiment fluorescent - Google Patents
Composition de blanchiment fluorescent Download PDFInfo
- Publication number
- EP1881108A1 EP1881108A1 EP06117354A EP06117354A EP1881108A1 EP 1881108 A1 EP1881108 A1 EP 1881108A1 EP 06117354 A EP06117354 A EP 06117354A EP 06117354 A EP06117354 A EP 06117354A EP 1881108 A1 EP1881108 A1 EP 1881108A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alkyl
- composition
- paper
- hydroxyalkyl
- fluorescent whitening
- 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.)
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- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 235000004400 serine Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229960003080 taurine Drugs 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
- 235000002374 tyrosine Nutrition 0.000 description 1
- 239000004474 valine Substances 0.000 description 1
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
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
-
- 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
- D21H21/16—Sizing or water-repelling agents
Definitions
- the present invention relates to a composition for the fluorescent whitening of paper, size or film press liquors and coating colours containing the composition and use and process for application of the composition to paper.
- Coatings containing FWA's are traditionally applied from either size or film press liquors or coating colours, the pH value of which lie in the neutral or slightly alkaline region of between 7.0 and 9.5.
- an increase in the pH value results in higher degrees of whiteness when FWA's are applied to paper by such coating techniques.
- the invention relates to a composition for fluorescent whitening of paper comprising
- any suitable base may be employed.
- bases are preferably water-soluble inorganic bases, especially alkali metal hydroxides, in particular lithium, potassium and sodium hydroxides, whereby aqueous sodium hydroxide solution is most preferred.
- the FWA used in the composition, component a) is a compound of formula (1), in which each R 1 and R 3 group and each R 2 and R 4 group are identical and each pair, independently, represents -NH 2 , -NHC 1 -C 4 alkyl, -N(C 1 -C 4 alkyl) 2' -N(C 1 -C 4 alkyl)(C 1 -C 4 hydroxyalkyl), -NHC 1 -C 4 hydroxyalkyl, -N(C 1 -C 4 hydroxyalkyl) 2 , or -NHaryl, whereby aryl is phenyl, which may be unsubstituted or substituted by one or two sulphonic acid groups, a morpholino residue, or an amino acid or amino acid amide residue from which a hydrogen atom has been abstracted from the amino group and M represents hydrogen or an alkali metal ion.
- Preferred amino acid or amino acid amide residue from which a hydrogen atom has been removed are those derived from glycine, alanine, serine, cysteine, phenylalanine, tyrosine (4-hydroxyphenylalanine), diiodotyrosine, tryptophan ( ⁇ -indolylalanine), histidine (( ⁇ -imidazolylalanine), ⁇ -aminobutyric acid, methionine, valine ( ⁇ -aminoisovaleric acid), norvaline, leucine ( ⁇ -aminoisocaproic acid), isoleucine ( ⁇ -amino- ⁇ -methylvaleric acid), norleucine ( ⁇ -amino-n-caproic acid), arginine, ornithine ( ⁇ , ⁇ -diaminovaleric acid), lysine ( ⁇ , ⁇ -diaminocaproic acid), aspartic acid (aminosuccinic acid), glutamic acid ( ⁇ -aminoglutari
- R 1 and R 3 both represent -NHC 1 -C 4 hydroxyalkyl, -N(C 1 -C 4 hydroxyalkyl) 2 , or-NHaryl, whereby aryl is phenyl, which may be unsubstituted or substituted by one or two sulphonic acid groups
- R 2 and R 4 represent -NHC 1 -C 4 hydroxyalkyl, -N(C 1 -C 4 hydroxyalkyl) 2 or an aspartic acid, an iminodiacetic acid or a 2-hydroxyethylamino-propionamide residue and M represents hydrogen or sodium
- Preferred distyryl biphenyl fluorescent whitening agents as component a) of the composition are those selected from the compounds of formulae and in which M' represents hydrogen, lithium, potassium or sodium, whereby the 2,2'-disulphonic acid derivatives of formula (3) are most preferred.
- C 1 -C 4 alkyl radicals are branched or unbranched and are, for example, methyl, ethyl, propyl, isopropyl or n-, sec- or tert-butyl; they may be unsubstituted or substituted by halogen, for example fluorine, chlorine or bromine.
- C 1 -C 4 alkoxy is, for example, methoxy, ethoxy, propoxy, isopropoxy or n-butoxy whilst C 2 -C 4 hydroxyalkyl is, for example, hydroxyethyl, hydroxypropyl or hydroxybutyl.
- the fluorescent whitening agents of formulae (1) and (2) are known compounds or may be prepared by known methods.
- the content of fluorescent whitening agent in the composition may vary over large ranges. However, typically, the content of compounds of formulae (1) and/or (2) is between 5 and 40, preferably, between 10 and 30 and, most preferably, 15 to 25% by weight, based on the total weight of the composition.
- the composition of the invention When used for the fluorescent whitening of paper, the composition of the invention may be applied to the substrate by means of a size or film press or in the form of a coating composition.
- the invention relates to the use of the composition of the invention for the fluorescent whitening of paper in the size press or film press or in a coating composition.
- the composition of the invention may be initially prepared by mechanical mixing of the components, adjustment of the pH to the desired value of between 10 and 13 by addition of a suitable base and then adding the desired quantity of the composition to the size press or film press liquor, prior to application to the paper.
- a size press or film press liquor composition useful for the fluorescent whitening of paper, comprising
- the size press or film press liquor may be prepared in situ by addition of one or more of the FWA's to the liquor bath and then adjusting the pH of the composition in the size press or film press to the desired value of between 10 and 13 by addition of a suitable base.
- the invention relates to a size press or film press liquor composition, useful for the fluorescent whitening of paper, comprising
- compositions of the invention may be applied to paper in the form of a coating colour, whereby the composition may be applied to the substrate by coating using any type of coating equipment such as a blade coater, roll coater etc.
- the amount of the composition for use according to the invention employed in the paper coating composition depends on the desired whitening effect; but usually corresponds to an amount containing from 0.01 to 5% by weight of the fluorescent whitening agent
- the paper coating compositions generally have a solids content of from 20 to 80% by weight, preferably from 25 to 70% by weight.
- the invention relates to a paper coating colour composition
- a paper coating colour composition comprising, in addition to 0.01 to 20 parts by weight of the composition disclosed above, per 100 parts of inorganic pigment,
- the whitening compositions according to the invention are excellently suitable for whitening the optionally pigmented coating compositions customarily used in the textile, paint, adhesives, plastics, wood and paper industries.
- coating compositions comprise, as binders (co-binders), plastics dispersions based on copolymers of butadiene and styrene, of naphthalene sulphonic acids and formaldehyde, of polyethylene and polypropylene oxides, of acrylonitrile, butadiene and styrene, of acrylic acid esters, of ethylene and vinyl chloride and of ethylene and vinyl acetate, or homopolymers, such as polyvinyl chloride, polyvinylidene chloride, polyethylene, polyvinyl acetate, polyvinyl alcohol, or polyurethane.
- the coating colour composition may, in addition to the whitening composition, contain further fluorescent whitening agents and/or shading dyes or pigments.
- aluminium silicates such as China clay or kaolin
- barium sulphate satin white, silicon dioxide, titanium dioxide or calcium compounds.
- the whitening compositions according to the invention may be used especially for the coating of paper, including ink-jet and photographic paper, wood, foils, textiles, non-woven materials and suitable building materials. Special preference is given to use on paper and cardboard and on photographic and ink-jet papers.
- the coating colour composition or size press or film press liquor composition may contain, as further auxiliaries, binders, agents for improving rheology and printability, fixing agents, wet-strength agents, antifoams and/or biocides.
- binders are polyvinyl alcohols, polyvinyl acetate, acrylic ester/styrene co-polymers, carboxylated styrene/butadiene copolymers, polyvinyl pyrrolidone, oxidized starch, carboxymethyl cellulose and other water-soluble cellulose derivatives, whilst, for example, polyacrylamides and co-polymers thereof may serve to improve rheology and printability.
- the invention relates to a process for the fluorescent whitening of paper by applying to the paper a composition comprising
- the invention relates to paper, which has been treated with a composition as disclosed above, a size press or film press liquor composition or a paper coating colour composition as disclosed above or according to the above process, whereby coatings or coverings so obtained have, in addition to a high degree of fastness to light, an excellent degree of whiteness.
- Solutions containing 20.2% of the compound of formula are prepared by dissolving the compound in water and the pH of the respective solutions adjusted to values of 9.3, 10.5, 11.0, 11.5, 12.0 and 12.5 by addition of 4N aqueous sodium hydroxide solution.
- aqueous solution containing 8.0g of anionic potato starch (Perfectamyl® A4692)
- anionic potato starch Perfectamyl® A4692
- the size press baths contain 0.5, 1.0, 2.0, 3.0, 4.0, 6.0 and 8.0g of the fluorescent whitening agent (FWA)/kg of paper.
- FWA fluorescent whitening agent
- This solution is applied to a neutral sized, wood- and FWA-free base paper having a weight of 80g/m 2 by means of a Mathis size press running at 2m/min and a pressure of 2500kpascal, whereby the pick-up corresponds to 20-25 ⁇ 0.5%.
- compositions of higher pH values result in substantially higher efficiency of the FWA.
- the composition of the invention was applied to plastic foils in the form of a paper coating composition.
- a 22% aqueous solution of the compound of formula is diluted to 1 % with water and the pH adjusted to 11.8 by addition of aqueous sodium hydroxide solution.
- a further sample is diluted with water to 1%, whereby the resulting solution has a pH value of 9.1.
- a formulation suitable for preparing ink jet papers is prepared by the addition of 5.0 g of the poly-DADMAC (diallyl dimethyl ammonium chloride) Catiofast® LF Harz DA (40% solution), 100 g of Gasil® M35 powder (silicon dioxide) and 120 g of the polyvinyl alcohol Mowiol® 4-98 (25% solution) to 365 g of water. Sufficient amounts of the solutions of compound (102) are added such that the coating colour contains 4.0 and 8.0g of the fluorescent whitening agent (FWA)/kg of coating, i.e. 0.4 and 0.8% respectively.
- the poly-DADMAC diallyl dimethyl ammonium chloride
- Catiofast® LF Harz DA 50% solution
- Gasil® M35 powder silicon dioxide
- Mowiol® 4-98 25% solution
- the coatings are then applied with a K Control 202 Erichsen coater equipped with rod #3 to Imperial Drafting Film 50 double matt plastic foils at a speed of 6m/min.
- the coated substrates are subsequently passed once through an infrared dryer heated to 185°C at a speed of 5-10 m/min to provide a dry coat weight of 5.4 ⁇ 0.2g/m 2 .
- the degrees of whiteness, W CIE of the resulting sheets are measured using a Datacolor Elrepho 450x spectrophotometer and appear in Table 2 below.
- Table 2 Example No pH of Composition Whiteness at 0.4% Whiteness at 0,8% 6 11.8 92.1 101.2 7 9.1 88.4 90.0
- compositions of higher pH values result in substantially higher efficiency of the FWA.
Landscapes
- Paper (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06117354A EP1881108A1 (fr) | 2006-07-18 | 2006-07-18 | Composition de blanchiment fluorescent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06117354A EP1881108A1 (fr) | 2006-07-18 | 2006-07-18 | Composition de blanchiment fluorescent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1881108A1 true EP1881108A1 (fr) | 2008-01-23 |
Family
ID=37733999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06117354A Withdrawn EP1881108A1 (fr) | 2006-07-18 | 2006-07-18 | Composition de blanchiment fluorescent |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP1881108A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2966467A1 (fr) * | 2010-10-26 | 2012-04-27 | Berkem Sa | Composition pour le traitement du bois |
| US20150123037A1 (en) * | 2013-11-06 | 2015-05-07 | Meng Jun Li | Novel FWA formulation used for the papermaking process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2277749A (en) * | 1993-05-08 | 1994-11-09 | Ciba Geigy Ag | Fluorescent whitening of paper using a bis-stilbene |
| EP0884312A1 (fr) * | 1997-05-23 | 1998-12-16 | Ciba SC Holding AG | Composés de triazinylaminostilbène |
| US20010014989A1 (en) * | 1997-03-25 | 2001-08-23 | Peter Rohringer | Fluorescent whitening agents |
| EP1355004A1 (fr) * | 2002-04-19 | 2003-10-22 | Bayer Aktiengesellschaft | Utilisation d'agents de blanchiment optiques pour la fabrication des melanges d'enduisage |
| EP1712677A1 (fr) * | 2005-04-08 | 2006-10-18 | Clariant International Ltd. | Solutions aqueuses d'azurants optiques |
-
2006
- 2006-07-18 EP EP06117354A patent/EP1881108A1/fr not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2277749A (en) * | 1993-05-08 | 1994-11-09 | Ciba Geigy Ag | Fluorescent whitening of paper using a bis-stilbene |
| US20010014989A1 (en) * | 1997-03-25 | 2001-08-23 | Peter Rohringer | Fluorescent whitening agents |
| EP0884312A1 (fr) * | 1997-05-23 | 1998-12-16 | Ciba SC Holding AG | Composés de triazinylaminostilbène |
| EP1355004A1 (fr) * | 2002-04-19 | 2003-10-22 | Bayer Aktiengesellschaft | Utilisation d'agents de blanchiment optiques pour la fabrication des melanges d'enduisage |
| EP1712677A1 (fr) * | 2005-04-08 | 2006-10-18 | Clariant International Ltd. | Solutions aqueuses d'azurants optiques |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2966467A1 (fr) * | 2010-10-26 | 2012-04-27 | Berkem Sa | Composition pour le traitement du bois |
| EP2447336A1 (fr) * | 2010-10-26 | 2012-05-02 | Berkem | Composition pour le traitement du bois |
| US20150123037A1 (en) * | 2013-11-06 | 2015-05-07 | Meng Jun Li | Novel FWA formulation used for the papermaking process |
| US9181656B2 (en) * | 2013-11-06 | 2015-11-10 | Meng Jun Li | FWA formulation used for the papermaking process |
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