Process for applying composition containing a cationic trivalent metal and debonder and fluff pulp sheet made from same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
D21H-021/24
D21H-021/22
D21H-017/66
D21H-017/03
D21H-017/07
D21C-009/00
D21H-017/00
D21H-011/16
D21H-027/00
D21H-017/63
출원번호
US-0681689
(2017-08-21)
등록번호
US-10260201
(2019-04-16)
발명자
/ 주소
Sealey, James E.
Hevenor, Michael
출원인 / 주소
INTERNATIONAL PAPER COMPANY
대리인 / 주소
Barnes, III, Thomas W.
인용정보
피인용 횟수 :
0인용 특허 :
99
초록▼
A process is provided for making a fluff pulp sheet, comprising contacting at least one cationic trivalent metal, salt thereof, or combination thereof with a composition comprising fluff pulp fibers and water at a first pH, to form a fluff pulp mixture; forming a web from the fluff pulp mixture; and
A process is provided for making a fluff pulp sheet, comprising contacting at least one cationic trivalent metal, salt thereof, or combination thereof with a composition comprising fluff pulp fibers and water at a first pH, to form a fluff pulp mixture; forming a web from the fluff pulp mixture; and applying at least one debonder surfactant to the web and raising the pH to a second pH, which is higher than the first pH, to make the fluff pulp sheet. A fluff pulp sheet is also provided, comprising a web comprising fluff pulp fibers; at least one cationic trivalent metal, salt thereof, or combination thereof; at least one debonder surfactant; and a fiberization energy of 145 kJ/kg. Products and uses of the fluff pulp sheet are also provided.
대표청구항▼
1. A process for making a fluff pulp sheet with decreased fiberization energy requirements and maintains a good Mullen value, comprising: contacting at least one cationic trivalent metal, salt thereof, or a combination thereof with a composition comprising fluff pulp fibers and water at a first pH,
1. A process for making a fluff pulp sheet with decreased fiberization energy requirements and maintains a good Mullen value, comprising: contacting at least one cationic trivalent metal, salt thereof, or a combination thereof with a composition comprising fluff pulp fibers and water at a first pH, to form a fluff pulp mixture;forming a web from the fluff pulp mixture; andapplying at least one debonder surfactant to the web and raising a pH of the web to a second pH, which is higher than the first pH, to make the fluff pulp sheet,wherein the first pH is 1% by weight,wherein the debonder surfactant is neat, in combination with one or more second debonder surfactant, in solution, or a combination thereof,wherein the debonder surfactant is in the form of a composition further comprising water and optionally one or more pH adjusting agent, whitener, colorant, pigment, optical brightening agent, wetting agent, binder, bleaching agent, trivalent cationic metal, alum, other additive, or a combination thereof, andwherein the debonder surfactant comprises one or more of linear or branched monoalkyl amine, linear or branched dialkyl amine, linear or branched tertiary alkyl amine, linear or branched quaternary alkyl amine, ethoxylated alcohol, linear or branched, saturated or unsaturated hydrocarbon surfactant, fatty acid amide, fatty acid amide quaternary ammonium salt, dialkyl dimethyl quaternary ammonium salt, dialkylimidazolinium quaternary ammonium salt, dialkyl ester quaternary ammonium salt, triethanolamine-ditallow fatty acid, fatty acid ester of ethoxylated primary amine, ethoxylated quaternary ammonium salt, dialkyl amide of fatty acid, cationic surfactant, non-ionic surfactant, C16-C18 unsaturated alkyl alcohol ethoxylate, compound having CAS Registry No. 68155-01-1, compound having CAS Registry No. 26316-40-5, or a combination thereof. 3. A fluff pulp sheet, made by the process of claim 1, comprising a SCAN-C 33:80 adsorption-time of <4.0,on screen fractionation a % Good of ≥50%, wherein the % Good is a percent retained on a USA Std #200 sieve and passing a USA Std #50 sieve,on screen fractionation a % Fines of ≤40%, wherein the % Fines is a percent passing the USA Std #200 sieve, andon screen fractionation a % Pieces of ≤30%, wherein the % Pieces is a percent retained on a USA Std #8 sieve. 4. The sheet of claim 3, wherein the cationic trivalent metal is present in the fluff pulp sheet in an amount ≥150 ppm. 5. The sheet of claim 3, further comprising a moisture content of about 6.3%. 6. The sheet of claim 3, further comprising a density of 0.5 to 0.75 g/cc. 7. The sheet of claim 3, further comprising a caliper of 40 to 70 mm. 8. The sheet of claim 3, further comprising a finished basis weight of 100-1100 gsm. 9. An adsorbent product, paper product, personal care product, medical product, insulating product, construction product, structural material, cement, food product, veterinary product, packaging product, diaper, tampon, sanitary napkin, gauze, bandage, fire retardant, or a combination thereof, comprising the sheet of claim 3.
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