KR920000746B1 - Mechanical process - Google Patents

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KR920000746B1
KR920000746B1 KR1019880015768A KR880015768A KR920000746B1 KR 920000746 B1 KR920000746 B1 KR 920000746B1 KR 1019880015768 A KR1019880015768 A KR 1019880015768A KR 880015768 A KR880015768 A KR 880015768A KR 920000746 B1 KR920000746 B1 KR 920000746B1
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pulp
mechanical pulp
wood
chips
raw material
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KR1019880015768A
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Korean (ko)
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KR900008108A (en
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김은목
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전주제지 주식회사
김인호
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means

Abstract

The method is for manufcturing a mechanical pulp from Rigida Pine. After eliminating barks and knobs, logs of wood chips are ground. Selected chips are introduced into the hot silo and seasoned. Seasoned material is pressured inthe solution of 0.1-3.0 % caustic soda and 0.5-5.0 % sodium sulfite and is defibered by the beater. Then 10.0-20.0 % hydrogen peroxide and 15.0-30.0 % sodium silicate is additioned. They are secondly beaten and bleached.

Description

기계펄프의 제조방법Manufacturing method of mechanical pulp

도면은 본 발명의 공정을 나타내는 블럭도.The figure is a block diagram showing the process of the present invention.

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

1 : 박피기 2 : 쇄목기1: dermabrasion machine 2: wood cutting machine

4 : 핫사일로 6,7 : 고해기4: hot silo 6,7: confession

8 : 펄프저장 탱크8: pulp storage tank

본 발명은 기계펄프의 제조방법에 관한 것으로서, 특히 리기다 소나무를 원료로 하는 기계펄프의 제조방법에 관한 것이다.The present invention relates to a method for producing mechanical pulp, and more particularly, to a method for producing mechanical pulp based on Rigida pine.

펄프를 제조법에 따라 분류하면 물의 존재하에서 기계적 마쇄작용으로 목재를 해리서켜 만들어지는 기계펄프와, 섬유원료를 아황산과 산성아황산염의 혼합액으로 가압한다음 증숙하여 만들어지는 화학펄프와, 중성아황산염 용액으로 완만하게 증숙하고 기계적 처리를 통해 해리시켜 만들어지는 반화학 펄프로 나누어진다.When pulp is classified according to the manufacturing method, mechanical pulp made by dissociating wood by mechanical grinding in the presence of water, chemical pulp made by pressing the fiber raw material with a mixture of sulfurous acid and acid sulfite, and neutral sulfite solution It is divided into semichemical pulp that is made by steaming and dissociating through mechanical treatment.

전기한 기계펄프는 원목의 섬유장이 길어야 좋은 품질의 펄프를 얻을 수 있으므로 주로 가문비나무, 전나무, 소나무, 흑송 등과 같은 침엽수를 원료로 하고, 화학펄프는 화학처리가 손쉽도록 수지함량이 낮은 수종을 원료로 한다.The above-mentioned mechanical pulp is made of long wood fiber to obtain good quality pulp, so it is mainly made of conifers such as spruce, fir, pine, black pine, etc., and chemical pulp is made of species with low resin content for easy chemical treatment. Shall be.

또, 반화학펄프에는 가볍고 연한 수종으로서 포플러, 버들, 피나무, 너도밤나무, 참나무, 오리나무, 물푸레나무 등이 원료로 쓰이고 있다.In addition, semi-chemical pulp is used as a light and soft species of poplar, willow, blooming, beech, oak, alder, ash, etc. as raw materials.

주치된 바와같이 국내의 임산자원은 대부분 소나무가 차지하고 있는 관계로 제지산업에의 활용은 기계펄프의 제조 원료로 쓰이고 있을 뿐이다.As noted, most domestic forest resources are occupied by pine, so the utilization in the paper industry is only used as a raw material for the production of mechanical pulp.

그런데 기계펄프는 원료의 수피와 마디를 제거한 다음 쇄목기로 냉쇄 또는 열쇄하여 만들어지는 관계로 신문용지와 같은 저급품 종이의 원료로 쓰일 수밖에 없다.By the way, mechanical pulp is made by removing bark and nodes of raw materials and then cold or hot crushing with a wood mill, so it can only be used as a raw material for low-grade paper such as newspaper.

특히 소나무 종류중에서 송지 함유량이 가장 많은 리기 다소나무는 자연건조기간이 길면서도 펄프화가 극히 곤란하여 거의 활용되지 못하고 있는 실정이다.In particular, the rigi juju tree, which has the highest pine tree content among pines, has a long natural drying period and is rarely utilized due to extremely difficult pulping.

본 발명자는 이러한 실정에 착안하면 리기다 소나무를 간단한 공정으로 처리하여 양질의 펄프로 제조할 수 있는 기계펄프의 제조방법을 제공하게 된 것이다.The inventors of the present invention provide a method for producing mechanical pulp that can be processed into a pulp of high quality by treating pine wood with a simple process.

이에 따라 본 발명은 리기다 소나무를 통상의 쇄목기로 소정 규격화시키고, 이를 핫사일로에 넣어 60-80℃로 2-5일간 강제 순환하면서 시즈닝하는 공정과, 시즈닝된 칩을 스크루 프레스에 넣고 0.1-3.0% 가성소다 및 0.5-5% 아황산소다의 혼합액 분위기에서 20-30℃로 가압 처리한 후, 고해기로 1차 탈섬유화하고 10.0-20.0% 과산화수소 15.0-30.0% 규산소다를 투입하여 2차 고해시킴과 동시에 표백해서 펄프 저장조로 보내는 공정으로 행해짐을 특징으로 한다.Accordingly, the present invention is to standardize the Rigida pine with a conventional crusher, put it in a hot silo, seasoning while forced circulation at 60-80 ℃ for 2-5 days, and put the seasoned chips in a screw press 0.1-3.0 Pressurized at 20-30 ° C. in a mixed solution of% caustic soda and 0.5-5% sodium sulfite, followed by primary de-fiberization with a blast furnace, followed by secondary firing with 10.0-20.0% hydrogen peroxide and 15.0-30.0% sodium silicate. Characterized in that the process is carried out by bleaching at the same time and sending it to the pulp reservoir.

이하 본 발명은 첨부 도면에 따라 실시예로서 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[실시예]EXAMPLE

[제1공정][Step 1]

소나무원목을 도면에 나타낸 바와같이 박피기(1)에 넣어 껍질을 벗기고 쇄목기(2)로 보낸다.As shown in the drawing, the pine wood is peeled into the peeler (1) and peeled and sent to the wood mill (2).

쇄목기(2)는 껍질이 벗겨진 원목을 소정규격, 예컨대 2.0×3.0×0.2cm 크기의 칩으로 분쇄한다.The crusher 2 grinds the peeled wood into chips of a predetermined size, for example, 2.0 × 3.0 × 0.2 cm.

분쇄된 칩을 스크린(3)에 의해 선별되어 소정규격보다 큰 칩은 다시 칩퍼(2)로 되돌려지고, 여과 선별된 칩만을 핫사일로(4)에 넣어 전처리 한다.The crushed chips are screened by the screen 3, and chips larger than a predetermined standard are returned to the chipper 2 again, and only the filtered chips are put into the hot silo 4 for pretreatment.

핫사일로(4)에서 칩을 65℃의 온도로 가온시킴과 동시에 강제 순환시키면서 4일간 시즈닝한다.In the hot silo 4, the chips are warmed to a temperature of 65 ° C and seasoned for four days while being forcedly circulated.

이 공정에서 칩이 함유하고 있는 송지는 산화를 일으키게 되는 바, 원료는 소정규격의 칩 형태로 분쇄되어진 것이므로 표면적이 증대되어 송지의 산화현상은 급격히 촉진되어진다.In this process, the feed contained in the chip causes oxidation, and since the raw material is crushed into chips of a predetermined standard, the surface area is increased and the oxidation phenomenon of the feed is accelerated.

시즈닝된 칩을 스크루 프레스(5)에 넣고 0.5% 가성소다와 2% 아황산소다를 투여하여 25℃ 분위기로 가압처리한다.The seasoned chips are placed in a screw press (5) and 0.5% caustic soda and 2% sodium sulfite are pressed under a 25 ° C atmosphere.

이 가압처리 과정에서 송지의 에스테르 및 지방산계 물질이 추출제거되고, 셀룰로오즈 조직이 팽창되어 고해가 용이하게 될 수 있게 되며, 또한 칩에 함유된 리그닌(Lignin)이 연화되어 섬유장(Fiber length)을 살리고 제반 기계적 성질이 향상되어진다.In this pressurization process, the ester and fatty acid-based materials of the pineapple are extracted and removed, the cellulose tissue is expanded, and the confession can be easily facilitated, and the lignin contained in the chip is softened to reduce the fiber length. It improves the overall mechanical properties.

전처리된 칩을 1차 고해기(5)으로 보내어 고해한 다음, 여기에 15% 과산화수소와 22% 규산소다를 투여하여 혼합시킨다.The pretreated chip is sent to the first blast furnace 5 for beating and then mixed with 15% hydrogen peroxide and 22% sodium silicate.

이 과정에서 탈섬유화된 칩은 카르복실기가 증가되어 펄프로서의 강도가 향상된다. 2차 고해 및 표백 처리를 마친 펄프는 펄프 저장조(8)로 보낸다.In this process, the defiberized chip has an increased carboxyl group, thereby improving its strength as a pulp. The pulp after the second beating and bleaching treatment is sent to a pulp reservoir (8).

상술한 공정에 의해 얻어진 본 발명의 소나무제 펄프를 일반적인 쇄목펄프의 물성과 비교한 결과는 다음 표와 같이 나타났다.The result of comparing the pine pulp of the present invention obtained by the above-mentioned process with the physical property of the general wood pulp was shown as the following table.

[표][table]

Figure kpo00001
Figure kpo00001

이상과 같이 본 발명은 종래에 그 취급과 공정이 난해한 리기다 소나무를 공종상의 어려움이 없는 평이한 방법으로 펄프화할 수 있어서 국내 임산자원의 활동을 도모할 수 있고, 특히 본 발명 공정에서는 일반 쇄목 펄프의 제조공정과는 달리 분산제나 알람등을 투입하지 않고도 펄프의 제조가 가능한 이점이 있다.As described above, the present invention can pulp pine tree, which is difficult to handle and process in the related art, in a simple manner without any industrial difficulties, thereby promoting the activity of domestic forest resources, and in particular, in the process of the present invention, production of general wood pulp Unlike the process, there is an advantage in that pulp can be manufactured without adding a dispersant or an alarm.

게다가 리기다 소나무를 오래 동안 자연 건조시키지 않아도 되므로 원목의 관리에도 상당한 이점을 부여해준다.Furthermore, Rigida pines do not have to be naturally dried for long periods of time, which provides significant benefits for the management of logs.

Claims (2)

원목의 수피와 마디를 제거하고 쇄목기로 분쇄하여 해리시켜 행하는 기계펄프의 제조방법에 있어서 칩상으로 선별된 원료를 핫사일로에 넣어 시즈닝하는 공정과, 시즈닝된 원료를 0.1-3.0% 가성소다 및 0.5-5% 아황산소다의 혼합액에 넣어 가압시키고, 고해기로 1차 탈섬유한 다음, 10.0-20.0% 과산화수소와 15.0-30.0% 규산소다를 투입하여 고해기로 2차 고해 및 표백시키는 공정으로 행해짐을 특징으로 하는 기계펄프의 제조방법.In the method of manufacturing mechanical pulp by removing the bark and nodes of wood, pulverizing and dissociating with a wood mill, the process of seasoning the raw material selected in the form of chips into a hot silo, and the seasoned raw material by 0.1-3.0% caustic soda and 0.5 The mixture is pressurized into a mixed solution of -5% sodium sulfite, pressurized first with fiber, followed by 10.0-20.0% hydrogen peroxide and 15.0-30.0% sodium silicate, followed by secondary beating and bleaching with quencher. Method for producing mechanical pulp 제1항에 있어서, 원료를 리기다 소나무로 함을 특징으로 하는 기계펄프의 제조방법.The method for producing mechanical pulp according to claim 1, wherein the raw material is pine.
KR1019880015768A 1988-11-29 1988-11-29 Mechanical process KR920000746B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006098531A1 (en) * 2005-03-17 2006-09-21 Hong, Hook Manufacturing method of semichemical mechanical pulp from cornstalk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006098531A1 (en) * 2005-03-17 2006-09-21 Hong, Hook Manufacturing method of semichemical mechanical pulp from cornstalk

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