KR20000053946A - Industrial dextrin And Method Of Preparing Thereof - Google Patents

Industrial dextrin And Method Of Preparing Thereof Download PDF

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KR20000053946A
KR20000053946A KR1020000025433A KR20000025433A KR20000053946A KR 20000053946 A KR20000053946 A KR 20000053946A KR 1020000025433 A KR1020000025433 A KR 1020000025433A KR 20000025433 A KR20000025433 A KR 20000025433A KR 20000053946 A KR20000053946 A KR 20000053946A
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weight
starch
phosphoric acid
industrial
urea
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Korean (ko)
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문윤도
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문윤도
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
    • C08B30/06—Drying; Forming

Abstract

PURPOSE: An industrial starch and preparation thereof are provided to substitute imported industrial starch and to prevent the loss of foreign currency so that the costs to be paid by final customers can be decreased. CONSTITUTION: An industrial starch according to the present invention comprises: a) 50 to 63.5 wt% of starch powder(Tapioca); b) 8.7 to 10 wt% of phosphoric acid; c) 5.2 to 10 wt% of soda ash; d) 5.3 to 10 wt% of urea; and e) 17.3 to 20 wt% of water.

Description

공업용 전분과 그 제조방법{Industrial dextrin And Method Of Preparing Thereof}Industrial starch and its manufacturing method {Industrial dextrin And Method Of Preparing Thereof}

본 발명은 제지와 철강 등의 피막 처리를 하는 데 에 사용하는 공업용 전분과 그 제조 방법에 관한 것으로, 특히 원재료인 녹말가루[다피오카(TAPIOCA)]에 인산,소다회 및 요소 등의 부재료를 첨가하여 특성 향상은 물론 경제성을 갖게 한 공업용 전분과 그 제조 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to industrial starches used to coat films and steels, and methods of manufacturing the same. Particularly, raw materials such as phosphoric acid, soda ash, and urea are added to starch powder (TAPIOCA), which is a raw material. The present invention relates to industrial starch and a method for producing the same, which have improved properties as well as economics.

일 반적으로 제지 혹은 철강 공장 등에서 피막 보호나 변형 방지를 위한 목적으로 공업용 전분을 사용함은 주지된 사실이다.In general, it is well known that industrial starch is used for film protection or deformation prevention in paper or steel mills.

제지의 경우에는 종이 수축을 방지하고 치수의 안정성을 부여하기 위해 표면 사이즈의 가공시 사용하는데, 유연성이 풍부하기 때문에 내면 사이즈 제와 표면 사이즈 제의 쌍방으로도 사용하여 지력을 높이는 증강제로도 사용된다.In the case of papermaking, it is used to process the surface size to prevent paper shrinkage and to provide stability of the dimension.Because of its flexibility, it can be used as both an inner size agent and a surface size agent, and it is also used as an enhancer to increase the intelligence. .

또 철강의 경우에는 철판 피막 처리시 사용하게 되는데, 철판에 공업용 전분을 투입하게 되면, 밀착성이 양호하게 되는 특징이 있다.In addition, in the case of steel, it is used at the time of iron plate coating treatment, when the industrial starch is added to the iron plate, there is a feature that the adhesion is good.

그러나 기존 공업용 전분은 국내 제조가 그다지 쉽지를 않아서 전량을 수입에 의존하지 않으면 안되는 실정에 있다.However, the existing industrial starch is not so easy to manufacture domestically, the amount must be dependent on imports.

이 때문에 국가적으로는 외화가 유출되는 경제적인 손실이 있게되고, 나아가 고가의 공업용 전분의 사용으로 인한 제품의 원가 상승을 초래하여 경제성과 생산성을 떨어지게 함은 물론이거니와 결과적으로 최종 소비자들에게 경제적인 부담을 안겨주게 되는 문제를 야기 시키고 있다.As a result, there are economic losses in which foreign currency is spilled in the country, and in addition, the cost of the product is increased due to the use of expensive industrial starch, thereby lowering economic efficiency and productivity, and consequently, economic burden on end consumers. It is causing a problem.

따라서 본 발명의 목적은 상기 제반 결점들을 해소하고, 수입 대체에 따른 공급 안정성과 경제성을 갖게 한 공업용 전분과 그 제조 방법을 제공하는 데 에 있다.Accordingly, an object of the present invention is to provide an industrial starch and a method for producing the same, which alleviate the above-mentioned shortcomings and provide supply stability and economy according to import substitution.

상기 목적을 달성하기 위해 본 발명에 따른 공업용 전분은 청구항1의 발명과 관련된 하기와 같은 성분으로 조성된 것을 특징으로한다.Industrial starch according to the present invention to achieve the above object is characterized in that it is composed of the following components related to the invention of claim 1.

녹말가루(다피오카, Tapioca) 50 ~ 63.5 중량(%);Starch powder (Tapioca) 50 to 63.5 weight%;

인산 8.7 ~ 10중량(%);8.7 to 10 weight percent phosphoric acid;

소다회 5.2 ~ 10 중량(%);5.2 to 10 weight percent of soda ash;

요소 5.3 ~ 10 중량(%);및5.3 to 10 weight percent of urea; and

물 17.3 ~ 20 중량(%)Water 17.3-20 weight (%)

또한 상기 목적을 달성하기 위해 본 발명의 공업용 전분의 제조방법은 청구항2의 발명과 관련된 8.7 ~ 10 중량(%)의 인산과, 5.2 ~ 10 중량(%)의 소다회와, 5.3 ~ 10 중량(%)의 요소와, 17.3 ~ 20 중량(%)의 물을 혼합 후 잘 용해되게 가열 (100℃)하기 위한 단계와, 가열 용해된 상기 혼합물과 50 ~ 63.5 중량(%)의 녹말가루와를 교반기 내에 투입하여 소정 시간(30분)교반하기 위한 단계와, 교반 혼합된 점도(粘度)성 혼합물을 압착 로울러를 이용하여 2~3㎝의 두께로서 성형하기 위한 단계와, 상기에서 얻어진 성형물을 건조기 내에 투입후 대략 150 ~ 155℃를 유지하면서 3 ~4시간 동안 건조하기 위한 단계와, 고온 건조물을 상온 상태를 이루게 식힌후, 이를 분쇄기에 넣어 고운 입자로서 분쇄하는 단계를 포함하는 것을 특징으로한다.In addition, the method for producing industrial starch of the present invention to achieve the above object is 8.7 to 10% by weight of phosphoric acid, 5.2 to 10% by weight (%) of soda ash, 5.3 to 10% by weight (%) Urea, 17.3-20 wt.% Of water, followed by heating (100 ° C.) so as to dissolve well, and the hot-dissolved mixture and 50-63.5 wt.% Of starch powder in a stirrer. A step for stirring and stirring for a predetermined time (30 minutes), a step for shaping the stirred and mixed viscous mixture as a thickness of 2 to 3 cm using a compression roller, and the molding obtained above is put into a dryer. After the step of drying for 3 to 4 hours while maintaining approximately 150 ~ 155 ℃, and cooled to achieve a high temperature dry matter at room temperature, it is characterized in that it comprises a step of pulverizing as fine particles in a grinder.

상기 분쇄 단계에서 입자는 100 ~ 180Mesh의 입도를 이루게 분쇄됨이 바람직하다.In the crushing step, the particles are preferably crushed to achieve a particle size of 100 ~ 180Mesh.

상기에서 분자식 H3PO4로 표시되는 인산과, 분자식 Na2CO3로 표시되는 소다회와 그리고 분자식 CO(NH2)2로 표시되는 요소를 상기 녹말 가루에 첨가하는 이유는 녹말 가루의 특성을 보다 강한 점성을 갖는 특성으로 변환시키는 작용을 하기위해 첨가된다. 인산은 녹말가루에 대한 점도의 특성을 높이기 위해 첨가하는 것으로, 녹말가루에 대한 적정 점도 유지를 위해 상기 인산의 범위내에서 첨가함이 바람직한데, 그 인산의 첨가량이 8.7 중량(%)이하로 되면 점도가 떨어질 우려가 있고, 10 중량(%) 이상으로 되면 점도가 높아지는 이점이 있으나, 재료의 소비가 많게 되는 단점이 있다.The reason why the phosphoric acid represented by the molecular formula H 3 PO 4 , the soda ash represented by the molecular formula Na 2 CO 3 , and the urea represented by the molecular formula CO (NH 2 ) 2 is added to the starch powder is characterized by the characteristics of the starch powder. It is added to act to convert into a highly viscous property. Phosphoric acid is added to enhance the viscosity of starch powder, and it is preferable to add phosphoric acid within the range of the phosphoric acid in order to maintain an appropriate viscosity for starch powder. When the amount of phosphoric acid added is less than 8.7% by weight (%) There is a concern that the viscosity may drop, and if it is 10 wt% or more, there is an advantage in that the viscosity increases, but there is a disadvantage in that the consumption of the material increases.

또 상기 소다회는 주재료인 녹말가루와 부재료인 중화 작용을 위해 첨가되며, 또 요소는 녹말가루,인산 및 소다회가 잘 반응되게 하는 반응제로 첨가됨과 아울러 색상 조절을 위해 첨가되는데, 요소가 상기 범위 이하(5.3중량%)로 첨가되면 반응이 약화될 우려가 있고, 그 이상(10중량%)으로 첨가되면 너무 빠른 진행으로 각 성분의 특성을 상실되게 할 우려가 있다.In addition, the soda ash is added for the neutralization action of starch powder as a main material and a subsidiary material, and urea is added as a reactant to make starch powder, phosphoric acid and soda ash react well, and is added for color control. 5.3 wt%), there is a fear that the reaction is weakened, if added (10 wt%) or more, there is a risk of losing the properties of each component by too fast progress.

또한 상기 조성분 중 화학식 H2O로 표시된 물의 첨가는 강산의 인산과 강 알칼리성의 소다회가 접촉시 발생될 염려가 있는 폭발 위험성을 없도록 중화함과 아울러 주재료인 녹말가루에 대하여 부재료인 인산, 요소 및 소다회가 잘 혼합되게 하는 혼합작용을 한다.In addition, the addition of water represented by the chemical formula H 2 O in the composition neutralizes the explosion risk, which may occur when the strong acidic acid and the strong alkaline soda ash are contacted, and also phosphoric acid, urea and soda ash, which are subsidiary materials for starch powder as a main material. Mixes to make the mix well.

이하, 본 발명에 따른 공업용 전분과 그 제조방법의 보다 바람직한 실시 예를 상세하게 설명한다.Hereinafter, a more preferred embodiment of the industrial starch according to the present invention and its manufacturing method will be described in detail.

<제조예><Production example>

먼저, 기 준비된 부재료들을 잘 섞이게 혼합한다. 즉 8.7 ~ 10 중량(%)의 인산과, 5.2 ~ 10 중량(%)의 소다회와, 5.3 ~ 10 중량(%)의 요소를 17.3 ~ 20 중량(%)의 물에 순차적으로 첨가하여 잘 섞이게 혼합 한다.First, the previously prepared submaterials are mixed well. That is, 8.7 to 10% by weight of phosphoric acid, 5.2 to 10% by weight of soda ash, and 5.3 to 10% by weight of urea are added to 17.3 to 20% by weight of water in order to mix well. do.

잘 섞이게 혼합을 완료한 후에는 대략 100℃의 온도로서 가열한다. 그 혼합물을 가열하는 이유는 원소들이 용해된 상태로서 보다 잘 섞이도록 하기 위함이다.After the mixing is completed well, it is heated to a temperature of approximately 100 ° C. The reason for heating the mixture is to allow the elements to mix better as they are dissolved.

이렇게 전 처리 작업을 완료한 혼합물, 즉 가열 용해 시킨 상기 혼합물과 녹말가루 50 ~ 63.5 중량(%)와를 기 준비된 일 반적인 교반기 내에 투입후, 양자가 잘 섞이도록 대략 30분 동안에 걸쳐서 혼합 교반한다.이렇게 혼합 교반된 혼합물은 녹말가루에 의해서 점도를 띠게 된다.The mixture which has completed the pretreatment operation, that is, the heat-dissolved mixture and 50 to 63.5 weight% of starch powder is added to a general stirrer prepared beforehand, and then mixed and stirred for about 30 minutes to mix well. The mixed and stirred mixture is made viscous by starch powder.

교반 혼합된 점도(粘度)성 혼합물은 기 준비된 일반적인 압착 로울러에 투입하여 압착하면 불 연속성의 불 규칙적인 크기의 판(Sheet)형상으로 성형되는데, 이때 두께는 대략 2 ~ 3㎝ 두께를 이루도록 함이 바람 직하다.Stir-mixed viscous mixtures are put into pre-prepared conventional compacting rollers and pressed into a non-continuous irregularly shaped sheet, which is about 2-3 cm thick. desirable.

상기 로울러를 통하여 얻어진 판 형체물들은 기 준비된 일 반적인 건조기 내에 투입후 가열하여 온도가 대략 155 ~ 160℃를 유지되게 하고, 이 온도(155 ~ 160℃)에서 대략 3 ~ 4시간 동안 건조를 실시한다. 이때 건조 상태는 습기가 ±10%정도를 함유하는 바삭거리는 상태이다.Plate shapes obtained through the rollers are put into a general dryer prepared in advance and heated to maintain a temperature of about 155 ~ 160 ℃, and drying for about 3 to 4 hours at this temperature (155 ~ 160 ℃) . At this time, the dry state is a crunchy state containing about 10% of moisture.

고온 건조된 건조물은 고열로 인해 취급함에 어려움이 있으므로 일단 상온 상태를 이루게 자연 혹은 강제로 식히게 되는데, 가능하면 자연적으로 식히는 것이 바람직하다. 자연적으로 식히는 데에 걸리는 시간은 대략 2시간 정도 소요된다.The high temperature dried product is difficult to handle due to high heat, so once it is naturally or forced to cool to form a room temperature state, it is preferable to cool naturally. Natural cooling takes about two hours.

냉각 후에는 기 준비된 분쇄기에 넣어 고운 입자를 이루게 분쇄하게 되는데, 입자는 100 ~ 180Mesh의 입도를 이루게 분쇄함이 바람 직하다. 이렇게 제조된 공업용 전분은 소정 단위로 포장되어 판매된다.After cooling, it is ground in a pre-prepared mill to form fine particles. The particles are preferably ground to achieve a particle size of 100 to 180 mesh. Industrial starch thus produced is packaged and sold in a predetermined unit.

<실시예><Example>

인산 8.7 중량(%)와, 소다회 5.2 중량(%)와, 요소 5.3 중량(%)와, 물 17.3 중량(%)를 혼합 가열하여 100℃로서 용해 후, 그 용해 물과 녹말가루(다피오카, Tapioca) 63.5 중량(%)를 교반기 내에 투입하여 교반을 하였고, 교반된 점도성 혼합물을 압착 로울러를 이용하여 2 ~ 3㎝의 두께를 갖는 불 규칙적인 판(Sheet)형상으로 성형후, 건조기 내에 투입하여 대략 150 ~ 155℃에서 3 ~4시간 동안 건조를 하였고, 고온 건조물을 상온 상태를 이루게 식힌 후 이를 분쇄기에 넣어 100 ~ 180 Mesh의 입도를 이루게 분쇄를 하였다. 이렇게 수득된 공업용 전분은 종이의 수축을 방지하고 치수의 안정성을 부여하는 데 에 사용하거나 혹은 철강의 피막 처리시에 사용하게 된다.8.7% by weight of phosphoric acid, 5.2% by weight of soda ash, 5.3% by weight of urea, 1% by weight of water and 17.3% by weight of water were mixed and dissolved at 100 ° C, and then the dissolved water and starch powder (dapioka) , Tapioca) 63.5 weight (%) was added to the stirrer and stirred, and the stirred viscous mixture was formed into an irregular sheet shape having a thickness of 2 to 3 cm using a compression roller, and then in the dryer. After drying for 3 to 4 hours at about 150 ~ 155 ℃, and cooled to achieve a high-temperature dry state at room temperature and put it into a grinder was pulverized to achieve a particle size of 100 ~ 180 Mesh. The industrial starch thus obtained is used to prevent shrinkage of paper and to impart dimensional stability, or to coat steel.

또 이상과 같은 실시예로 제조된 공업용 전분과 기존 전분과의 점도 시험 결과는 표1의 기재와 같았다.In addition, the viscosity test results of the industrial starch prepared in the above-described examples and the existing starch was as described in Table 1.

구분division B형점도계 측정치Type B Viscometer Measurements 본 발명 공업용전분Industrial Starch of the Invention 기존 공업용 전분Conventional Industrial Starch 1% sol(전분1%+물 99%)1% sol (starch 1% + water 99%) 20rpm20 rpm 10 ~ 15 cps10 to 15 cps 9 ~ 14 cps9 to 14 cps PVIPVI 0.9±0.050.9 ± 0.05 0.8±0.040.8 ± 0.04 10% sol(전분10%+물 90%)10% sol (10% starch + 90% water) 20rpm20 rpm 120,000 ~ 130,000120,000-130,000 110,000~125,000110,000-125,000 PVIPVI 0.2±0.30.2 ± 0.3 0.1±0.20.1 ± 0.2

이상의 표1에서 확인되는 바와 같이, 본 발명의 공업용 전분은 기존의 공업용 전분에 비해, 점도 특성이 향상 되었음을 알 수 있는바, 본 발명의 제품은 종이나 혹은 철강에 적용되었을 경우 기존 제품에 비하여 같거나 혹은 그 이상의 효과를 갖게 됨을 짐작할 수 있다.As confirmed in Table 1 above, it can be seen that the industrial starch of the present invention has improved viscosity characteristics as compared to the existing industrial starch, and the product of the present invention is the same as that of the existing product when applied to paper or steel. It can be expected to have more or more effects.

이상과 같이 본 발명에 의하면, 주 재료(녹말가루)와 부재료(인산, 소다회,요소, 물)와의 혼합으로 기존의 공업용 전분과 같은 특성을 발휘하는 전분을 얻을수 있게 한 것에 의해, 수입 대체에 따른 외화 소비를 줄일수 있는 경제적인 효과를 얻을 수 있고, 또 항시 안정적으로 물품을 안가로 대량 공급할수 있는 효과가 있다.As described above, according to the present invention, by mixing the main material (starch powder) and the subsidiary materials (phosphate, soda ash, urea, water), the starch exhibiting the same characteristics as the existing industrial starch can be obtained. Economical effect to reduce foreign currency consumption can be obtained, and stable supply of large quantity of goods is possible at all times.

Claims (3)

하기와 같은 성분으로 조성된 공업용 전분.Industrial starch composed of the following components. 녹말가루(다피오카, Tapioca) 50 ~ 63.5 중량(%);Starch powder (Tapioca) 50 to 63.5 weight%; 인산 8.7 ~ 10중량(%);8.7 to 10 weight percent phosphoric acid; 소다회 5.2 ~ 10 중량(%);5.2 to 10 weight percent of soda ash; 요소 5.3 ~ 10 중량(%);및5.3 to 10 weight percent of urea; and 물 17.3 ~ 20 중량(%)Water 17.3-20 weight (%) 8.7 ~ 10 중량(%)의 인산, 5.2 ~ 10 중량(%)의 소다회, 5.3 ~ 10 중량(%)의 요소, 17.3 ~ 20 중량(%)의 물을 혼합 후 보다 잘 용해된 상태로서 혼합 되도록 가열(100℃)하기 위한 단계;8.7 to 10% by weight of phosphoric acid, 5.2 to 10% by weight of soda ash, 5.3 to 10% by weight of urea, 17.3 to 20% by weight of water to be better dissolved after mixing Heating (100 ° C.); 가열 용해된 상기 혼합물과 50 ~ 63.5 중량(%)의 녹말가루와를 교반기 내에 투입하여 소정 시간(30분)교반하기 위한 단계;Stirring the mixture by heating the melted mixture with 50 to 63.5 weight% of starch in a stirrer for a predetermined time (30 minutes); 교반 혼합된 점도(粘度)성 혼합물을 압착 로울러를 이용하여 2~3㎝의 두께로 성형하기 위한 단계;Molding the stirred and mixed viscous mixture to a thickness of 2 to 3 cm using a compression roller; 상기에서 얻어진 성형물을 건조기 내에 투입후 대략 150 ~ 155℃를 유지하면서 3 ~4시간 동안 건조하기 위한 단계; 및Drying the molded product obtained above into a dryer for 3 to 4 hours while maintaining approximately 150 to 155 ° C; And 고온 건조물을 상온 상태를 이루게 식힌 후, 이를 분쇄기에 넣어 고운 입자를 이루게 분쇄하는 단계를 포함하는 공업용 전분의 제조방법.After cooling the high temperature dry matter to form a room temperature state, the method for producing industrial starch comprising the step of pulverizing the fine particles into a fine particle. 제2항에 있어서, 상기 분쇄 단계에서 입자는 100 ~ 180Mesh의 입도를 이루게 분쇄됨을 특징으로하는 공업용 전분의 제조방법.The method of claim 2, wherein in the grinding step, the particles are pulverized to achieve a particle size of 100 ~ 180Mesh.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251481A (en) * 1975-10-23 1977-04-25 Nippon Shokuhin Kako Kk Process for preparing the nitrogen-cntaining phosphorylated starch
JPS62116602A (en) * 1985-11-18 1987-05-28 Sanwa Denpun Kogyo Kk Production of urea-phosphate starch
JPS6343902A (en) * 1986-08-11 1988-02-25 Sanwa Shoji Kk Production of modified starch
JPS63221102A (en) * 1987-03-09 1988-09-14 Sanwa Shoji Kk Manufacture of processed starch
JPH02255701A (en) * 1989-03-29 1990-10-16 Satoshi Konishi Method for preventing separated substance from adhering
JPH04202302A (en) * 1990-11-30 1992-07-23 Keisuke Ueno Water-soluble, cationic fire-resistant phosphorylated starch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251481A (en) * 1975-10-23 1977-04-25 Nippon Shokuhin Kako Kk Process for preparing the nitrogen-cntaining phosphorylated starch
JPS62116602A (en) * 1985-11-18 1987-05-28 Sanwa Denpun Kogyo Kk Production of urea-phosphate starch
JPS6343902A (en) * 1986-08-11 1988-02-25 Sanwa Shoji Kk Production of modified starch
JPS63221102A (en) * 1987-03-09 1988-09-14 Sanwa Shoji Kk Manufacture of processed starch
JPH02255701A (en) * 1989-03-29 1990-10-16 Satoshi Konishi Method for preventing separated substance from adhering
JPH04202302A (en) * 1990-11-30 1992-07-23 Keisuke Ueno Water-soluble, cationic fire-resistant phosphorylated starch

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