KR870002332A - Improvement of kraft liner cardboard made of unbleached kraft pulp, bleached kraft cardboard, TMP cardboard and cardboard made of SCMP and sulfite pulp - Google Patents

Improvement of kraft liner cardboard made of unbleached kraft pulp, bleached kraft cardboard, TMP cardboard and cardboard made of SCMP and sulfite pulp Download PDF

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Publication number
KR870002332A
KR870002332A KR1019860006958A KR860006958A KR870002332A KR 870002332 A KR870002332 A KR 870002332A KR 1019860006958 A KR1019860006958 A KR 1019860006958A KR 860006958 A KR860006958 A KR 860006958A KR 870002332 A KR870002332 A KR 870002332A
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KR
South Korea
Prior art keywords
pulp
wet strength
cardboard
kraft
paper
Prior art date
Application number
KR1019860006958A
Other languages
Korean (ko)
Inventor
에쓰. 스웬손 로이
엠. 맥도날드 도날드
링 미첼
에이취. 휘일드 자스피
케이트 홀 에프.
Original Assignee
아더 윌리스
인터내쇼날 페이퍼 캄파니
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
Priority claimed from US06/768,598 external-priority patent/US4718982A/en
Priority claimed from US06/768,642 external-priority patent/US4718981A/en
Priority claimed from US06/768,776 external-priority patent/US4692212A/en
Application filed by 아더 윌리스, 인터내쇼날 페이퍼 캄파니 filed Critical 아더 윌리스
Publication of KR870002332A publication Critical patent/KR870002332A/en

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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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses

Abstract

내용 없음No content

Description

표백되지 않은 크라프트 펄프로 제조된 크라프트 라이너판지, 표백된 크라프트판지, TMP판지 및 SCMP 및 아황산염 펄프로 제조된 판지의 개량Improvement of kraft liner cardboard made of unbleached kraft pulp, bleached kraft cardboard, TMP cardboard and cardboard made of SCMP and sulfite pulp

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 라이너판지를 제조하는 통상적인 장치의 극히 간소화한 계통도.1 is an extremely simplified schematic diagram of a typical apparatus for making liner cardboard.

제2도는 본 발명을 실시하는 장치의 극히 간소화한 계통도.2 is an extremely simplified schematic diagram of a device embodying the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 웨브형성스크린 12,13,14,15,16,17 : 습윤프레스닙로울10: web forming screen 12, 13, 14, 15, 16, 17: wet press nip roller

18,19 : 예비-건조로울 20,21,22,23 : 건조로울18,19: pre-drying rolls 20,21,22,23: drying rolls

25,26,27,28 : 압력로울 30,31,32,33 : 건조로울25,26,27,28: Pressure roll 30,31,32,33: Drying roll

35,36,37,38 : 압력로울 40 : 외포35,36,37,38: Pressure roll 40: Sheath

41,42,43,44,60,61 : 공기캡 50,51 : 최종로울41,42,43,44,60,61: Air cap 50,51: Final roll

Claims (20)

표백되거나 표백되지 않은 크라프트 펄프, 열기계식 펄프, SCMP 또는 아황산염 펄프로 제조된 종이 제품의 접지내구성(folding endurance)을 그대로 보존하면서 습윤강도(wet strenght)를 향상시키는 방법에 있어서, 제조과정중에 종이를 고압의 치밀화(densification)처리를 하는 단계를 포함하며, 종이의 습윤강도를 상승시키기에 충분한 정도의 시간동안 종이의 내측온도를 최소한 420℉(216℃)까지 상승시키는 가열단계를 포함하는 방법.A method of improving the wet strength while preserving the folding endurance of paper products made from bleached or unbleached kraft pulp, thermomechanical pulp, SCMP or sulfite pulp. Performing a high pressure densification process and heating the inner temperature of the paper to at least 420 ° F. (216 ° C.) for a time sufficient to increase the wet strength of the paper. 제1항에 있어서, 전술한 치밀화 단계와 가열단계를 동시에 실시하는 방법The method of claim 1, wherein the above-mentioned densification step and heating step are carried out simultaneously. 제1항에 있어서, 전술한 치밀화 단계를 전술한 가열단계보다 선행시키는 방법.The method of claim 1, wherein the densifying step described above precedes the heating step described above. 제1항에 있어서, 전술한 내측온도가 420℉(216℃)의 범위로 되는 방법.The method of claim 1 wherein the aforementioned internal temperature is in the range of 420 ° F. (216 ° C.). 제1항에 있어서, 크라프트 펄프를 표백하지 않고 내측온도를 약 550℉(289℃)로 하며, 펄프를 표백하거나 펄프를 열기계식 펄프인 경우에는 내측온도가 약 465℉(240℃)가 되며, 펄프가 SCMP 또는 아황산인 펄프인 경우에는 내측온도를 450℉(232℃)로 하는 방법.The process of claim 1 wherein the inner temperature is about 550 ° F. (289 ° C.) without bleaching the kraft pulp, and the inner temperature is about 465 ° F. (240 ° C.) when the pulp is bleached or the pulp is thermomechanical pulp. If the pulp is pulp with SCMP or sulfurous acid, the inner temperature is 450 ° F. (232 ° C.). 제1항에 있어서, 전술한 치밀화 단계에서 판지(paperboard)를 600 내지 1200kg/m3의 밀도까지 압축시키는 방법.The method of claim 1 wherein the paperboard is compressed to a density of 600 to 1200 kg / m 3 in the aforementioned densification step. 제1항에 있어서, 전술한 치밀화단계가 전술한 가열단계를 하기전에 700-900kg/m3의 범위의 밀도를 얻기 위하여 종이를 충분히 압축시키는 것을 포함하는 방법The method of claim 1 wherein the densification step described above comprises sufficiently compressing the paper to obtain a density in the range of 700-900 kg / m 3 before the aforementioned heating step. 제1항에 있어서, 전술한 치밀화 단계전의 전술한 종이가 10% 내지 70중량%범위의 수분함량을 가지는 방법.The method of claim 1 wherein the aforementioned paper prior to the densification step has a moisture content in the range of 10% to 70% by weight. 제1항에 있어서, 전술한 종이제품이 라이너판지(linerboard) 또는 판지 (paperboard)인 방법.The method of claim 1 wherein the paper product described above is a linerboard or paperboard. 제9항에 있어서, 전술한 종이제품이 라이너판지이고 125 내지 464kg/m2범위의 기본중량(basis weight)를 가지는 방법.The method of claim 9 wherein the paper product described above is a linerboard and has a basis weight in the range of 125 to 464 kg / m 2 . 제1항에 있어서, 전술한 종이제품이 판지(paperboard)이고 30 내지 464kg/m2범위의 기본중량을 가지며 이 판지를 열기개식 펄프로 만드는 경우 기본중량이 60 내지 464kg/m2가 되는 방법.The method of claim 1 wherein the paper product described above is paperboard and has a basis weight in the range of 30 to 464 kg / m 2 and the basis weight is 60 to 464 kg / m 2 when the cardboard is made from a hot air pulp. 제1항 내지 제10항 중 어느 한항에 따라서 제조된 습윤강도가 높고 접지내구성이 높은 라이너판지.A liner board having a high wet strength and a high ground durability manufactured according to any one of claims 1 to 10. 제12항에 있어서, 습윤강도가 최소한 15lb/in이고, 최소한 1000 싸이클의 접지내구성을 만족시키는 라이너판지.13. The linerboard of claim 12 wherein the wet strength is at least 15 lb / in and satisfies ground durability of at least 1000 cycles. 제12항에 있어서, 습윤강도가 최소한 15lb/in이고, 최소한 300 싸이클의 접지내구성을 만족시키는 라이너판지.13. The linerboard of claim 12 wherein the wet strength is at least 15 lb / in and satisfies the ground durability of at least 300 cycles. 제12항에 있어서, SCMP 또는 아황산염 펄프로 제조되며, 최소한 6lb/in의 습윤강도를 가지며, 최소한 10싸이클의 접지내구성을 만족시키는 라이너판지.13. The linerboard of claim 12, made of SCMP or sulfite pulp, having a wet strength of at least 6 lb / in and satisfying at least 10 cycles of ground durability. 제1항 내지 제9항 및 제11항 중 어느 한 항에 따라 제조된 높은 습윤강도와 높은 접지내구성을 가지는 표백된 크라프트판지.Bleached kraft paper having high wet strength and high ground durability made according to any one of claims 1 to 9 and 11. 제16항에 있어서, 최소한 5lb/in의 습윤강도를 가지며 최소한 50 싸이클의 접지내구성을 만족시키는 표백된 크라프트판지.17. The bleached kraft board of claim 16, having a wet strength of at least 5 lb / in and satisfying a ground durability of at least 50 cycles. 제16항에 있어서, 최소한 15lb/in의 습윤강도를 가지며 최소한 300싸이클 의 접지내구성을 만족시키는 표백된 크라프트판지.17. The bleached kraft board of claim 16, having a wet strength of at least 15 lb / in and satisfying a ground durability of at least 300 cycles. 제1항 내지 제9항 및 제11항 중 어느 한항에 따라 열기계식 펄프로 제조되고 높은 습윤강도와 높은 접지내구성을 가지는 판지.12. Paperboard made of thermomechanical pulp according to any one of claims 1 to 9 and 11 and having a high wet strength and a high earthing durability. 제19항에 있어서, 최소한 10lb/in의 습윤강도를 가지며 최소한 1싸이클의 접지내구성을 만족시키는 판지.20. The paperboard of claim 19 having a wet strength of at least 10 lb / in and satisfying at least one cycle of ground durability. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860006958A 1985-08-23 1986-08-22 Improvement of kraft liner cardboard made of unbleached kraft pulp, bleached kraft cardboard, TMP cardboard and cardboard made of SCMP and sulfite pulp KR870002332A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US76877885A 1985-08-23 1985-08-23
US06/768,598 US4718982A (en) 1985-08-23 1985-08-23 Densification and heat treatment of paperboard produced from SCMP and other sulfite pulps
US06/768,642 US4718981A (en) 1985-08-23 1985-08-23 Bleached kraft paperboard by densification and heat treatment
US768778 1985-08-23
US768598 1985-08-23
US768776 1985-08-23
US06/768,776 US4692212A (en) 1985-08-23 1985-08-23 Kraft linerboard by densification and heat treatment
US768642 2007-06-26

Publications (1)

Publication Number Publication Date
KR870002332A true KR870002332A (en) 1987-03-30

Family

ID=27505713

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860006958A KR870002332A (en) 1985-08-23 1986-08-22 Improvement of kraft liner cardboard made of unbleached kraft pulp, bleached kraft cardboard, TMP cardboard and cardboard made of SCMP and sulfite pulp

Country Status (5)

Country Link
EP (1) EP0219643B1 (en)
KR (1) KR870002332A (en)
BR (1) BR8604011A (en)
DE (1) DE3676782D1 (en)
FI (1) FI863420A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002544403A (en) * 1999-05-06 2002-12-24 ノボザイムス アクティーゼルスカブ Method for producing a paper material having improved wet strength
US6610172B1 (en) 1999-05-06 2003-08-26 Novozymes A/S Process for treating pulp with laccase and a mediator to increase paper wet strength
CN100447334C (en) * 2006-12-08 2008-12-31 姜在胜 Kraft white paperboard
CN101397765B (en) * 2007-09-28 2010-08-25 中国制浆造纸研究院 Coating kraft liner board paper
FI3026173T4 (en) 2014-11-26 2023-02-09 Method of producing a containerboard from pulp comprising NSSC pulp
SE540115C2 (en) * 2016-09-21 2018-04-03 A paper or paperboard product comprising at least one ply containing high yield pulp and its production method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT221923B (en) * 1957-12-23 1962-06-25 Paul Ing Lippke Machine for the production of fibrous webs

Also Published As

Publication number Publication date
EP0219643A1 (en) 1987-04-29
DE3676782D1 (en) 1991-02-14
EP0219643B1 (en) 1991-01-09
BR8604011A (en) 1987-06-30
FI863420A (en) 1987-02-24
FI863420A0 (en) 1986-08-22

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