IT8050115A1 - IMPROVEMENT IN THE ABSORBENT DISPOSABLE ITEMS AND PROCEDURE FOR THEIR PRODUCTION. - Google Patents
IMPROVEMENT IN THE ABSORBENT DISPOSABLE ITEMS AND PROCEDURE FOR THEIR PRODUCTION. Download PDFInfo
- Publication number
- IT8050115A1 IT8050115A1 IT1980A50115A IT5011580A IT8050115A1 IT 8050115 A1 IT8050115 A1 IT 8050115A1 IT 1980A50115 A IT1980A50115 A IT 1980A50115A IT 5011580 A IT5011580 A IT 5011580A IT 8050115 A1 IT8050115 A1 IT 8050115A1
- Authority
- IT
- Italy
- Prior art keywords
- pulp
- dye
- weight
- absorbent
- classified
- Prior art date
Links
- 230000002745 absorbent Effects 0.000 title claims description 18
- 239000002250 absorbent Substances 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title description 3
- 229920001131 Pulp (paper) Polymers 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- IHZXTIBMKNSJCJ-UHFFFAOYSA-N 3-{[(4-{[4-(dimethylamino)phenyl](4-{ethyl[(3-sulfophenyl)methyl]amino}phenyl)methylidene}cyclohexa-2,5-dien-1-ylidene)(ethyl)azaniumyl]methyl}benzene-1-sulfonate Chemical compound C=1C=C(C(=C2C=CC(C=C2)=[N+](C)C)C=2C=CC(=CC=2)N(CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S(O)(=O)=O)=C1 IHZXTIBMKNSJCJ-UHFFFAOYSA-N 0.000 claims description 5
- 210000001124 body fluid Anatomy 0.000 claims description 5
- 239000010839 body fluid Substances 0.000 claims description 5
- 238000004040 coloring Methods 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000004061 bleaching Methods 0.000 claims 1
- 238000005282 brightening Methods 0.000 claims 1
- AXMCIYLNKNGNOT-UHFFFAOYSA-M sodium;3-[[4-[(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)-[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]methyl]-n-ethylanilino]methyl]benzenesulfonate Chemical compound [Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](C)C)C=2C=CC(=CC=2)N(CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 AXMCIYLNKNGNOT-UHFFFAOYSA-M 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 235000015927 pasta Nutrition 0.000 description 5
- 229920005610 lignin Polymers 0.000 description 4
- 230000000930 thermomechanical effect Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010876 untreated wood 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
- D21H21/28—Colorants ; Pigments or opacifying agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
-
- 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
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Inorganic Chemistry (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- External Artificial Organs (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Description
DESCRIZIONE DESCRIPTION
a corredo di una domanda di brevetto per invenzione avente per titolo: accompanying a patent application for an invention entitled:
"Perf?zionamento negli articoli assorbenti a perdere e procedimento per la loro produzione" "Perf? Tioning of disposable absorbent articles and process for their production"
RIASSUNTO SUMMARY
Vengono forniti articoli assorbenti e particolarmente articoli assorbenti da gettar via dopo l'uso impiegati per assorbire fluidi corporei (ad esempio pannolini, tamponi ecc..) e che sono generalmente strutturati con un foglio superiore o con fogli superiori, una massa di materiale assorbente al disotto e un foglio posteriore per trattenere la perdita dei fluidi dall'articolo, con una massa assorbente derivata da pasta di legno termomeccanica o meccanica in cui la massa assorbente si approssima o equivale come bianchezza alla bianchezza dei prodotti in pasta chimica di legno. Ci? ? ottenuto trattando la pasta con quantit? minuscole di un sistema colorante misto cio? con quantit? ad esempio in ragione di 0,001%-0,05% in peso rispetto al peso totale della pasta. Absorbent articles and particularly absorbent articles are provided to be thrown away after use used to absorb body fluids (e.g. diapers, tampons, etc.) and which are generally structured with a topsheet or topsheet, a mass of absorbent material at the underneath and a back sheet to retain fluid loss from the article, with an absorbent mass derived from thermo-mechanical or mechanical wood pulp in which the absorbent mass approximates or is whiteness equivalent to the whiteness of chemical wood pulp products. There? ? obtained by treating the pasta with quantity? lowercase letters of a mixed coloring system that is? with quantity? for example in the ratio of 0.001% -0.05% by weight with respect to the total weight of the pasta.
La presente invenzione si riferisce a prodotti assorbenti che generalmente sono caratterizzati come prodotti a perdere o da gettar via dopo l'uso e trattare i prodotti sono i pannolini, i tamponi per l'igiene femminile, i tamponi per il ciclo mestruale e simili e in particolare la presente invenzione si riferisce a perfezionamenti riguardanti tali prodotti con l'impiego di lanugine di legno derivata da pasta meccanica o termomeccanica. La lanugine viene usata come massa assorbente principale in questi prodotti e si fa riferimento a brevetti recenti quali i brevetti statunitensi 4.069.821; 4.066.081; 4.062.362; The present invention relates to absorbent products that are generally characterized as disposable or throwaway products after use and treating products are diapers, feminine hygiene tampons, menstrual tampons and the like and in in particular, the present invention refers to improvements concerning such products with the use of wood fluff derived from mechanical or thermo-mechanical pulp. Fluff is used as the primary absorbent mass in these products and reference is made to recent patents such as US Patents 4,069,821; 4,066,081; 4,062,362;
4.060.085; 4.044.768; 4.029.101; 4.029.100 e 4.027.672 in cui la pasta di legno viene impiegata come nastro assorbente nei prodotti del tipo ivi previsto. Tali brevetti sono incorporati qui per riferimento. La pasta usata per produrre la lanugine in questi brevetti della tecnica precedente generalmente ? stata pasta chimica e tale lanugine ? un prodotto altamente imbianchito in adiempezza di circa 90 o superiore. Lo standard di bianchezza 100 viene riferito alla superficie del magnesio carbonato ed ? accettato come criterio per una eccellente bianchezza. La pasta chimica ? anche vantaggiosa per il fatto che si ottengono lunghezze di fibra ottimali dalla fonte del legno per cui si arriva ad ottenere tamponi assorbenti aventi una integrit? di struttura tollerabile (cio? resistenza meccanica e stabilit? di forma) che ? maggiormente desiderabile dato che il procedimento di formazione del tampone generalmente ? un procedimento di deposizione dall'aria. 4,060,085; 4,044,768; 4,029,101; 4,029,100 and 4,027,672 in which the wood pulp is used as an absorbent tape in products of the type specified therein. Such patents are incorporated herein by reference. The pulp used to make the fluff in these prior art patents generally? was chemical pulp and such fluff? a highly bleached product in a size of about 90 or more. The whiteness standard 100 refers to the surface of the magnesium carbonate and? accepted as a criterion for excellent whiteness. The chemical pulp? also advantageous due to the fact that optimal fiber lengths are obtained from the source of the wood so that it is possible to obtain absorbent pads having an integrity? of tolerable structure (that is mechanical resistance and stability of shape) that? more desirable since the tampon-forming process generally? a process of deposition from the air.
E' stato trovato desiderabile e vantaggioso impiegare pasta termomeccanica in strutture assorbenti da gettar via dopo l'uso a causa non solamente degli ovvi vantaggi economici ma anche a causa dei miglioramenti ottenuti nel potere assorbente. Il potere assorbente risulta dalla natura semiidrofuga di una pasta termomeccanica dovuta alla presenza di lignininaturali che comunicano una maggiore resilienza al tampone non int?ssuto e contemporanea maggiore capacit? di trattenere i liquidi. It has been found desirable and advantageous to use thermo-mechanical pulp in absorbent structures to be thrown away after use due not only to the obvious economic advantages but also to the improvements obtained in absorbency. The absorbing power results from the semi-hydrophobic nature of a thermo-mechanical paste due to the presence of natural lignin which communicate greater resilience to the non-woven pad and, at the same time, greater capacity. to retain liquids.
Uno degli svantaggi della pasta termomeccanica consiste nel "colore anomalo" del prodotto che rende i pannolini da gettar via ottenuti con tale prodotto meno desiderabili per l'utilizzatore particolarmente per quegli utilizzatori che impiegano pannolini da gettar via su bambini ove un prodotto "deve essere bianchissimo". One of the disadvantages of the thermomechanical paste consists in the "anomalous color" of the product which makes the disposable diapers obtained with this product less desirable for the user, particularly for those users who use disposable diapers on children where a product "must be very white. ".
E' stato ora trovato che la bianchezza della pasta termomeccanica e di altre paste cellulosiche di colore anomalo come ad esempio paste meccaniche e paste semi chimiche e anche paste chimiche che non sod-. disfano gli standard di bianchezza accettati, si pu? ampiamente migliorare approssimandosi alla bianchezza delle migliori paste chimiche (cio? paste prive di lignina e imbianchite) mediante trattamento della pasta preferibilmente in un impasto liquido con un sistema colorante misto che comprende (a) CI Acid Volet 49 e (b) CI Acid Violet 47 in un rapporto in peso tra (a) e (b) che va da circa 10:1 a 1:10 preferibilmente da 6:1 a 1:6, pi? preferibilmente da 4:1 a 1:4, pi? preferibilmente ancora da 3 : 1 ? 1:3 e con massima preferenza da 1:1 a 1:3 per fornire la pasta con circa lo 0,001% a circa 0,0 5% in peso di colorante rispetto al peso della pasta secca. It has now been found that the whiteness of thermo-mechanical pulp and of other cellulosic pulps of abnormal color such as mechanical pulps and semi-chemical pulps and also unsatisfactory chemical pulps. undo the accepted whiteness standards, can you? widely improve approaching the whiteness of the best chemical pastes (i.e. lignin-free and bleached pastes) by treating the paste preferably in a slurry with a mixed coloring system which includes (a) CI Acid Volet 49 and (b) CI Acid Violet 47 in a weight ratio between (a) and (b) ranging from about 10: 1 to 1:10, preferably from 6: 1 to 1: 6, plus? preferably from 4: 1 to 1: 4, plus? preferably still 3: 1? 1: 3 and most preferably 1: 1 to 1: 3 to provide the paste with about 0.001% to about 0.0 5% by weight of dye relative to the weight of the dry pasta.
Il miscuglio colorante ? convenientemente aggiunto alla pasta acquosa (di solito circa 85:90$ o pi? di residuo secco) come soluzione preferibilmente acquosa ma si pu? impiegare qualsiasi adatto solvente per il colorante (ad esempio alcool oppure alcool in soluzione acquosa). Nonostante la soluzione di colorante possa essere di qualsiasi concentrazione preferibile, generalmente si preferisce usare soluzioni diluite per evitare una colorazione eccessiva in punti localizzati della pasta che pu? dar luogo a valori di rapido esaurimento e di esaurimento abbatanza elevato del colorante dalla soluzione sul materiale cellulosico della pasta. The dye mixture? conveniently added to the aqueous paste (usually about 85: 90% or more of dry residue) as a preferably aqueous solution but it can be done. use any suitable solvent for the dye (for example alcohol or alcohol in aqueous solution). Although the dye solution can be of any preferable concentration, it is generally preferred to use diluted solutions to avoid excessive coloring in localized points of the paste which can be used. give rise to values of rapid exhaustion and high abatance exhaustion of the dye from the solution on the cellulosic material of the pulp.
Dopo, il trattamento la pasta viene manipalata in maniera, comune per formare prodotti in foglio per qualsiasi uso susseguente e in articolar la pasta pu? essere trasformata in fogli per formare cartoni da impiegare nella produzione di lanugine assorbente per i prodotti da gettar via dopo l'uso, di cui si parla precedentemente. After, the treatment the pasta is manipulated in a common way to form sheet products for any subsequent use and in articulate the pasta can be used. be transformed into sheets to form cartons to be used in the production of absorbent fluff for products to be thrown away after use, which was discussed above.
Qui di seguito si d? una illustrazione specifica della presente invenzione. Below you d? a specific illustration of the present invention.
Esempio 1. Example 1.
Ad 1,5 g della pasta di cellulosa, acquosa (pasta termochimica non privata di lignina) contenente un residuo secco cellulosico del 90% si aggiungono 50 cm3 di una soluzione colorante conten To 1.5 g of the aqueous cellulose pulp (thermochemical pulp not deprived of lignin) containing a dry cellulose residue of 90%, 50 cm3 of a coloring solution containing
(a) 7,5 mg/l di CI Acid Violet 47 e (b) 2.5mg/l di CI Acid Violet 49. Dopo l'essiccazione della pasta susseguentemente alla vagliatura per formare un foglio si trova che la riflettanza Tappi misurata comunemente su un riflettometro G.E. ? pari all'80 % mentre la riflettanza di un materiale in foglio in pasta di legno non trattata (cio? senza trattamento con il colore) similmente ha una riflettanza Tappi solamente pari al 65%. Il prodotto trattato con il colore non solamente ha una migliore riflettanza e una migliore bianchezza ma ? equivalente alla solita pasta chimica (priva di lignina) quando viene trasformata in fogli in maniera simile nonostante la presenza della lignina nel materiale costituito da pasta termomeccanica. (a) 7.5 mg / l of CI Acid Violet 47 and (b) 2.5 mg / l of CI Acid Violet 49. After drying of the paste following screening to form a sheet it is found that the Tappi reflectance commonly measured on a G.E. ? equal to 80% while the reflectance of an untreated wood pulp sheet material (ie without color treatment) similarly has a Cappi reflectance of only 65%. The color treated product not only has better reflectance and better whiteness but? equivalent to the usual chemical pulp (free of lignin) when it is transformed into sheets in a similar way despite the presence of lignin in the material consisting of thermomechanical pulp.
E' anche preferibile aggiungere una piccola quantit? di pigmento a base di titanio diossido oppure bario solfato alla pasta acquosa (carica) per imbianchire ulteriormente il prodotto. Generalmente solo quantit? piccolissime, da circa 0,01% a circa 10% in peso preferibilmente da 0,5% a circa 3% in. peso producono notevoli risultati come illustrato nell'esempio che segue. Is it also preferable to add a small amount? of pigment based on titanium dioxide or barium sulphate to the aqueous paste (filler) to further whiten the product. Generally only quantity? very small, from about 0.01% to about 10% by weight, preferably from 0.5% to about 3% by weight. weight produce remarkable results as illustrated in the example below.
Esempio II a) Si ripete l'esempio I con l'aggiunta alla soluzione di colorante di 0,5 g/l di titanio diossido. Example II a) Example I is repeated with the addition of 0.5 g / l of titanium dioxide to the dye solution.
b) Si ripete l'esempio I con l'aggiunta alla soluzione di colorante di 0,5 g/l di bario solfato. b) Example I is repeated with the addition of 0.5 g / l of barium sulphate to the dye solution.
In ciascuno degli stadi (a) e (b) il valore di riflettanza dei campioni ? l'85%. In each of the stages (a) and (b) the reflectance value of the samples? 85%.
Nonostante l'invenzione sia stata descritta con riferimento ad un miscuglio di colorante CI acid violet 47 Although the invention has been described with reference to a mixture of CI acid violet 47 dye
Claims (11)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9280779A | 1979-11-09 | 1979-11-09 | |
| US20504480A | 1980-11-07 | 1980-11-07 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| IT8050115A0 IT8050115A0 (en) | 1980-11-10 |
| IT8050115A1 true IT8050115A1 (en) | 1982-05-10 |
| IT1188963B IT1188963B (en) | 1988-01-28 |
Family
ID=26786077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT50115/80A IT1188963B (en) | 1979-11-09 | 1980-11-10 | Absorbent article, e.g. sanitary towel |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | IT1188963B (en) |
| NL (1) | NL8006112A (en) |
-
1980
- 1980-11-07 NL NL8006112A patent/NL8006112A/en not_active Application Discontinuation
- 1980-11-10 IT IT50115/80A patent/IT1188963B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8050115A0 (en) | 1980-11-10 |
| IT1188963B (en) | 1988-01-28 |
| NL8006112A (en) | 1981-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5068009A (en) | Method of producing fluff pulp with improved defibration properties | |
| ES2529104T3 (en) | Additive for dried sheets of spongy paper pulp | |
| JP5816280B2 (en) | Composition containing polyvalent cationic metal and amine-containing antistatic agent, and method for producing and using the same | |
| ES445717A1 (en) | Use of ozone treated chemithermomechanical pulp in a high bulk tissue papermaking process | |
| JPS607060B2 (en) | Manufacturing method of fluff pulp | |
| FI88525C (en) | Foerfarande Foer ljushetsstabiliserande av blekt lignininnehaollande cellulosamassa | |
| BR0207929A (en) | Improved method for use of water-insoluble chemical additives with pulp and products produced by said method | |
| PT2462277E (en) | Process for applying composition containing a cationic trivalent metal and debonder and fluff pulp sheet made from same | |
| ES2307485T3 (en) | SOFTENING COMPOSITION FOR TISU PAPER. | |
| SE8703654L (en) | PACKAGING PAPER, PROCEDURES FOR THE PREPARATION OF PACKAGING PAPER AND APPLICATION OF DIFFERENT PAPER PAPER FOR PAPER MAKING | |
| CA1145508A (en) | Disposable article of improved color, composition and method for making same | |
| US3986922A (en) | Method of deinking printed waste cellulosic stock | |
| CN106676929B (en) | Mineral skin-protecting oil-absorbing paper and preparation method thereof | |
| AU707582B2 (en) | Absorbent cellulosic material and production thereof | |
| BR9204097A (en) | PROCESS TO OBTAIN IMPROVED, SELECTIVITY OF DESIGNIFICATION OF PULP DURING DESIGNIFICATION WITH OXYGEN, OF HIGH CONSISTENCY | |
| IT8050115A1 (en) | IMPROVEMENT IN THE ABSORBENT DISPOSABLE ITEMS AND PROCEDURE FOR THEIR PRODUCTION. | |
| NO862163L (en) | PROCEDURE FOR THE PREPARATION OF A LIQUID ABSORPERS, SPECIAL FOR USE IN SOFT HYGIENE ARTICLES AND SANITARY PRODUCTS. | |
| ECSP24011897A (en) | DISPERSIBLE PAPER, ITS PRODUCTION PROCESS, PACKAGING AND USE OF SUCH PAPER | |
| SU1601274A1 (en) | Paper for articles for sanitary and hygienic purposes | |
| SU779483A1 (en) | Paper for sanitary and household uses | |
| CA1152710A (en) | Pulp containing hydrophilic debonder and process for its application | |
| SE9203801L (en) | MASS PREPARATION PROCEDURE WITH ALKALITE ADDITION FOR THICK MASS OXYGEN ELIGIBILITY | |
| FI924751A0 (en) | TVAETTPRESSMODIFIKATION FOER EN SYREDELIGNIFIERINGSMETOD | |
| SE7510677L (en) | PROCEDURE FOR THE PREPARATION OF CELLULOSA ACCORDING TO THE SULPHITE METHOD | |
| SU443139A1 (en) | Paper Sizing Compound |