KR0144536B1 - Molding method of pulp - Google Patents

Molding method of pulp

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Publication number
KR0144536B1
KR0144536B1 KR1019940029021A KR19940029021A KR0144536B1 KR 0144536 B1 KR0144536 B1 KR 0144536B1 KR 1019940029021 A KR1019940029021 A KR 1019940029021A KR 19940029021 A KR19940029021 A KR 19940029021A KR 0144536 B1 KR0144536 B1 KR 0144536B1
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KR
South Korea
Prior art keywords
pulp
molding
mold
pellets
present
Prior art date
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KR1019940029021A
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Korean (ko)
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KR960018065A (en
Inventor
조윤철
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조윤철
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Application filed by 조윤철 filed Critical 조윤철
Priority to KR1019940029021A priority Critical patent/KR0144536B1/en
Publication of KR960018065A publication Critical patent/KR960018065A/en
Application granted granted Critical
Publication of KR0144536B1 publication Critical patent/KR0144536B1/en

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21JFIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00Fibreboard
    • D21J1/06Drying
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines

Landscapes

  • Dry Formation Of Fiberboard And The Like (AREA)
  • Buffer Packaging (AREA)

Abstract

본 발명은 펄프재를 이용한 펄프성형물의 팽화건식(膨化乾式) 성형방법에 관한 것이다.The present invention relates to a method for swelling dry molding of pulp moldings using pulp materials.

본 발명의 성형방법은 고해(叩解)된 펄프재에 송진, 젤라틴, 전분, 염료등을 혼합하여 건조시킨 펄프펠리트를 밀폐된 성형금형내에서 가열, 가압하여 호화(糊化)시킨 후, 급속 감압하여 팽창시켜 펄프재를 성형을 하는 방법이다.In the molding method of the present invention, the pulp pellets obtained by mixing rosin, gelatin, starch, dyes, and the like with a hardened pulp material are heated and pressurized in a closed mold to gelatinize, and then rapidly formed. It expands under reduced pressure and forms a pulp material.

이와 같은 본 발명의 펄프재 팽화건식 성형방법에 의한 성형물은 우수한 생산성, 경제성을 갖추고 있기 때문에, 발포스티로폴성형물의 대체자재로 유용하게 쓰일 수 있어 자원의 절감과 재활용에 아울러, 환경보전에도 많은 기여를 할 수 있다.Since the molded product according to the pulp material swelling dry molding method of the present invention has excellent productivity and economical efficiency, it can be usefully used as a substitute material for the foamed styrofoll molding, which contributes to the reduction of resources and recycling, and to the environmental conservation. can do.

Description

펄프재 성형물(pulp mold)의 팽화건식(彭化乾式) 성형방법Pulverized dry molding method of pulp material molding

제1도는 본 발명의 제1단계공정으로 성형을 위한 원료인 펄프펠리트(pulp pellet)를 제조하는 공정도이다.FIG. 1 is a process chart of manufacturing pulp pellets as raw materials for molding in a first step process of the present invention.

제2도는 본 발명의 제2단계공정으로 상기의 펄프폘리트(pulp pellet)로 성형물을 성형하는 성형금형의 구조도이다.2 is a structural diagram of a molding mold for molding a molded product from the pulp pellet in the second step process of the present invention.

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

1:펄퍼(pulper) 2:펄프슬러리(slurry)1: Pulper 2: Pulp Slurry

3:정선기(screen) 4:탈수장치3: screen 4: dewatering device

5:펄프케익 6:압출기5: Pulp cake 6: Extruder

7:건조장치 8:펄프펠리트(pulp pellet)7: Drying device 8: Pulp pellet

9:하판 10:상판9: bottom 10: top

11:히터(heater) 12:열판11: Heater 12: Hot plate

13:단열판 14:고정판13: insulation board 14: fixed plate

15:금형캐비티(cavity) 16:에어게이트(air gate)15: mold cavity 16: air gate

17:에어포킷(air pocket) 18:공기주입구17: Air pocket 18: Air inlet

본 발명은 펄프재 성형물의 팽화건식(膨化乾式)성형방법에 관한 것이다.The present invention relates to a method for swelling dry molding of pulp material moldings.

현재까지의 펄프재성형물(pulp mold)의 성형방법은, 습식(濕式)성형방법으로서 펄프재를 물에 고해(叩解)시켜 분리한 펄프섬유가 혼합된 펄프슬러리(pulp slurry)를 넣은 용기안에 성형금형을 밀어넣어 진공으로 흡인하면 금형의 저면에 부착된 그물망에 펄프가 흡착되어 펄프섬유층이 형성되는데, 이 펄프섬유층을 금형으로부터 분리하여 건조로에 보내어 가열건조시킴으로써 펄프재의 성형물을 성형하는 방법으로서, 이상과 같은 성형방법은 금형의 구조상 한쪽의 흡착면으로만 펄프섬유층이 형성되어지기 때문에 완전한 입체형상을 형성하기는 불가능하며, 성형된 조직상태가 불안정하고 균일하지 못하며, 성형과 건조과정에서 빈번한 형태의 변형 및 파손이 일어나고, 펄프의 고해(叩解)와 건조에 따른 여러 면에 있어서의 비용의 부담이 크다.Until now, the molding method of the pulp mold is a wet molding method in which a pulp slurry containing pulp fibers mixed with the pulp material by mixing the pulp material with water is put in a container. When the mold is pushed in and suctioned under vacuum, the pulp is adsorbed to the mesh attached to the bottom of the mold to form a pulp fiber layer.The pulp fiber layer is separated from the mold and sent to a drying furnace to heat-dry to form a molded product of the pulp material. In the above molding method, it is impossible to form a perfect three-dimensional shape because the pulp fiber layer is formed only on one adsorptive surface of the mold, and the formed tissue state is unstable and uneven. Deformation and breakage occur, and the burden of the cost in various aspects according to the beating and drying of the pulp is large.

본 발명의 목적은 상기 습식성형방법에 따른 펄프재 성형물의 단점을 해소시켜 환경보전문제로 사용이 규제되고 있는 발포스티로폴성형물을 대체시킬 수 있는 유용한 대용자재로써, 발포스티로폴에 버금가는 용도의 물성을 갖춘 저렴한 펄프재 성형물을 성형하는 방법을 창출하는데 있다.It is an object of the present invention to solve the disadvantages of the pulp material molding according to the wet molding method as a useful substitute to replace the foamed styrofoam moldings, which are regulated for use as an environmental preservation problem, the physical properties of the use similar to the foamed styropol It is to create a method of molding inexpensive pulp material moldings.

상기의 목적을 달성키 위한 본 발명의 구성은 성형원료인 펄프펠리트(pulp pellet)를 제조하는 제1단계공정과, 제1단계공정에서 제조된 펄프펠리트로 원하는 형상의 성형물을 성형하는 제2단계공정으로 구분되며 첨부된 도면에 의하여 다음과 같이 구체적인 설명을 한다.The configuration of the present invention for achieving the above object is a first step of manufacturing a pulp pellet (pulp pellet) which is a molding raw material, and a second of forming a molded article of a desired shape by the pulp pellet manufactured in the first step The process is divided into steps and the following detailed description will be made with reference to the accompanying drawings.

제1도는 본 발명의 제1단계공정으로 성형원료인 펄프펠리트를 제조하기 위한 공정도로서 신문지, 잡지등 펄프폐재를 펄퍼(1)에 넣어 물에 고해(叩解)시킨 후 송진, 젤라틴, 전분, 염료등 성형보조재를 넣어 혼합한다. 그리고 펄퍼(1)로부터 혼합된 펄프슬러리(pulp slurry)(2)를 정선기(screen)(3)에 통과시켜 이물을 제거한 다음 탈수장치(4)로 보내어 수분을 제거시키면 펄프케익(5)이 얻어지게 되는데, 제거된 수분은 다시 펄퍼(1)에 회수시키고 펄프케익(5)은 압출기(6)에 보내어 펠리트(pellet)형상으로 만들어 건조장치(7)에서 건조시키면 펄프펠리트(pulp pellet)(8)가 만들어진다.1 is a process chart for manufacturing pulp pellets as a molding raw material in the first step of the present invention, and pulp waste materials such as newspapers and magazines are put in the pulp (1), and then pulverized in water, and then rosin, gelatin, starch, Put molding aid such as dye and mix. Then, the pulp slurry (2) mixed from the pulper (1) is passed through a screener (3) to remove foreign substances, and then sent to the dehydrating device (4) to remove the water, the pulp cake (5) is obtained The removed water is collected again in the pulp (1) and the pulp cake (5) is sent to the extruder (6) to form a pellet (dry) in the drying apparatus (7) pulp pellet (pulp pellet) (8) is made.

제2도는 본 발명의 제2단계공정으로, 제1단계에서 만들어진 펄프펠리트(pulp pellet)(8)를 원료로 하여 성형물을 성형하는 성형금형의 구조도로서 하판(9)과 상판(10)에는 원하는 형상의 금형캐비티(cavity)(15)가 형성되어 있으며 하판(9)과 상판(10)에는 가열을 위한 히터(heater)(11)와 열판(12), 단열판(13) 및 고정판(14)이 각기 부착된다. 하판(9)에는 금형캐비티(15)와 연결되는 좁은 공기통로인 에어게이트(air gate)(16)가 있고 이 에 연결된 에어포킷(17)이 설치된다. 이 에어포킷(17)에는 외부와 연결되어 압축공기를 제어공급할 수 있도록 공기주입구(18)를 설치한다. 이러한 구조의 성형금형에 의한 펄프재의 성형과정은 다음과 같다. 이미 가열되고 있는 금형의 상판(10)을 열고 하판(9)의 금형캐비티(15)안에 펄프펠리트(8)를 적정량만큼 계량하여 넣은 다음 상판(10)을 닫아 밀폐시키고 공기주입구(18)를 통하여 적정한 압력의 공기압을 걸어준다. 시간이 경과되면 금형캐비티(15)안에 들어있는 압축공기 및 펄프펠리트(8)는 열을 받아 팽창되면서 밀폐된 금형캐비티(15)안의 압력은 올라가게 되는데, 이때의 펄프펠리트(8)는 호화(糊化)는 되지만 팽창은 압력에 의하여 억제를 받게 된다. 충분히 펄프펠리트(8)가 호화되었을 때 상판(10)을 적절한 간격만큼 급속히 위로 올려주어 금형을 개방시키면, 금형캐비티(15)안의 압력은 급강하되어 내부 압력으로 팽창이 억제되고 있던 펄프펠리트(8)는 급속히 팽창하면서 금형캐비티(15)의 내부를 채우게 된다. 이로서 금형캐비티(15)의 형상과 동일한 펄프재성형물의 성형이 완료되는 것이다.FIG. 2 is a structural diagram of a molding mold for molding a molding by using the pulp pellet 8 produced in the first step as a second step process of the present invention. A mold cavity (15) of a desired shape is formed, and the lower plate (9) and the upper plate (10) have a heater (11), a hot plate (12), a heat insulating plate (13), and a fixing plate (14) for heating. These are attached respectively. The lower plate 9 has an air gate 16, which is a narrow air passage connected to the mold cavity 15, and an air pocket 17 connected thereto is installed. The air pocket 17 is provided with an air inlet 18 so as to be connected to the outside to control and supply compressed air. The molding process of the pulp material by the molding mold of this structure is as follows. Open the upper plate 10 of the mold that is already heated, measure the pulp pellet 8 into the mold cavity 15 of the lower plate 9 by an appropriate amount, close the upper plate 10 to seal it, and close the air inlet 18. Apply air pressure of proper pressure through As time passes, the compressed air and pulp pellets 8 contained in the mold cavity 15 are expanded to receive heat, and the pressure in the sealed mold cavity 15 is increased. At this time, the pulp pellets 8 Gelatinization occurs, but expansion is inhibited by pressure. When the pulp pellet 8 is sufficiently luxury, if the top plate 10 is quickly raised by an appropriate interval to open the mold, the pressure in the mold cavity 15 drops and the pulp pellet whose expansion is suppressed by the internal pressure ( 8) rapidly expands to fill the inside of the mold cavity (15). As a result, the molding of the pulp material molded product having the same shape as the mold cavity 15 is completed.

상기와 같이 팽화건식 성형방법에 의하여 얻어진 펄프재 성형물은, 종래의 습식성형방법에서 얻을 수 없었던 정확한 성형성, 고른 품질, 탁월한 입체적 형체구성, 우수한 생산성 및 경제성을 갖추고 있어 발포스티로폴성형물의 유용한 대체자재로 발포스티로폴성형물에 버금가는 용도의 개발이 가능하여 자원의 절약과 환경의 보전에 많은 기여를 할 수 있다.As described above, the pulp material moldings obtained by the puffed dry molding method have accurate moldability, uniform quality, excellent three-dimensional shape composition, excellent productivity and economic efficiency which are not obtained by the conventional wet molding method, and thus are useful substitutes for the foamed styrofoll moldings. It is possible to develop the application comparable to the low foamed styrofoam molding, which can contribute a lot of resource saving and environmental conservation.

Claims (2)

신문 잡지 기타 펄프폐재등을 물에 풀어 해섬을 시킨 후 성형성의 향상을 위해 전분 송진 젤라틴등 성형 보조제를 함께 혼합하는 공정과, 이것을 압출기 등을 이용하여 입자구조의 펠리트(pellet)상으로 성형 건조시켜 펄프펠리트(pulp pellet)를 만드는 공정과, 상기에 의해 얻어진 펄프펠리트(pulp pellet)를 원료로 하여 밀폐된 금형내에 넣고 가압 가열하여 호화(糊化)시킨 후 금형을 급속개방시켜 줌에 의하여 펄프펠리트를 팽화(膨化)시키는 공정을 특징으로 하는 펄프재 성형물의 팽화건식 성형방법.Newspapers Magazines Pulp waste materials are dissolved in water to make them, and then molding aids such as starch rosin gelatin are mixed together to improve moldability, and these are molded and dried into pellets using an extruder. Process to make pulp pellets, and the above-mentioned pulp pellets as a raw material, placed in a closed mold, pressurized and heated to gelatinize, and then rapidly open the mold. A swelling dry molding method of a pulp material molding characterized by a step of swelling the pulp pellets by means of. 제1항에 있어서, 금형에 가열을 위한 히터(11)와 열판(12)의 설치와, 금형캐비티(cavity)(15)와 연결하여 에어게이트(air gate)(16) 및 에어포킷(17)을 설치하여 금형캐비티(15)내의 압력을 공기주입구(18)를 통하여 제어할 수 있도록되어 있는 것을 특징으로 하는 펄프재 성형물의 팽화건식 성형장치.The method of claim 1, wherein the installation of the heater 11 and the hot plate 12 for heating the mold, and connected to the mold cavity (15) to the air gate (16) and the air pocket (17) An apparatus for swelling dry molding of a pulp material molding, characterized in that the pressure in the mold cavity (15) is installed to control the air inlet (18).
KR1019940029021A 1994-11-07 1994-11-07 Molding method of pulp KR0144536B1 (en)

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KR0144536B1 true KR0144536B1 (en) 1998-07-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100545045B1 (en) * 2001-05-29 2006-01-24 에코니아 주식회사 Method for manufacturing natural biodegradable goods using useless paper
CN110387773A (en) * 2019-06-24 2019-10-29 东莞职业技术学院 A kind of novel environment friendly paper and its preparation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100545045B1 (en) * 2001-05-29 2006-01-24 에코니아 주식회사 Method for manufacturing natural biodegradable goods using useless paper
CN110387773A (en) * 2019-06-24 2019-10-29 东莞职业技术学院 A kind of novel environment friendly paper and its preparation process

Also Published As

Publication number Publication date
KR960018065A (en) 1996-06-17

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