KR910000430B1 - Sanitary napkin - Google Patents
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- KR910000430B1 KR910000430B1 KR1019880016160A KR880016160A KR910000430B1 KR 910000430 B1 KR910000430 B1 KR 910000430B1 KR 1019880016160 A KR1019880016160 A KR 1019880016160A KR 880016160 A KR880016160 A KR 880016160A KR 910000430 B1 KR910000430 B1 KR 910000430B1
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- alginate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
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Abstract
Description
본 발명은 카르복시메틸알기네이트나 알긴산염의 섬유로 된 생리대흡수제에 관한 것이다.The present invention relates to a sanitary napkin absorbent comprising fibers of carboxymethyl alginate or alginate.
현재까지 알려진 흡수성 재료는 면, 펄프와 같은 천연물에서 합성고분자를 발포시켜 만든 스폰지에 이르기까지 수십 종류에 달하고 있다. 이들의 흡수특성은 모세관을 통하여 흡수작용을 하는 것으로 흡수력이 20배 정도밖에 되지 않으며 외부압력을 받으면 물이 쉽게 제거되기 때문에 보수능력도 매우 낮다. 이같은 단점을 극복하기 위해 흡수성 수지가 개발되고 있는데 이 흡수성 수지는 재료내부에 수백배의 흡수능력을 갖으며, 일단 흡수된 물은 재료를 팽운시켜 어느 정도의 압력하에서도 물을 방출하지 않는 보수능력이 큰 기능성 수지이다. 이러한 고흡수성 재료는 위생용품, 농업, 원예, 건축 등의 여러 분야에서 응용되어 이에 대한 개발이 활발히 진행 중에 있다.There are dozens of absorbent materials known to date, ranging from natural products such as cotton and pulp to sponges made from foaming synthetic polymers. Their absorption characteristics are absorbed through capillary tube, and the absorption power is only about 20 times, and water is easily removed when subjected to external pressure. Absorbent resins have been developed to overcome these drawbacks, which have the ability to absorb hundreds of times in the material, and once absorbed, the water swells up the material and does not release water under any pressure. This is a large functional resin. Such superabsorbent materials have been applied in various fields, such as sanitary products, agriculture, horticulture, construction, etc., and the development of these super absorbent materials is being actively conducted.
흡수성 수지는 1960년 대에, 미국 농무성 연구소에서 처음 개발되었는데 그 제법은 전부에 아크릴로니트릴을 공중합한 후 가수분해한 것이다.Absorbent resins were first developed in the 1960s by the US Department of Agriculture, and the process is the hydrolysis of copolymerized acrylonitrile in its entirety.
이에 따라 1960년대 말부터 미국의 Henkel사, Grain Processing사 등이 이와 같은 형태의 수지를 생산하기 시작하였다.As a result, Henkel and Grain Processing of the United States began producing resins of this type in the late 1960s.
한편, 일본에서도 1975년 삼양화학에서 전부에 아크릴산을 그라프트 중합하여 고흡수성 재료를 개발하는 데 성공하였다.Meanwhile, in 1975, Samyang Chemical succeeded in developing a super absorbent material by graft-polymerizing acrylic acid on the whole.
그 뒤를 이어서 여러 회사에서 폴리아크릴산계, P.V.A계 등의 고흡수성 재료가 개발되었다. 또한, 1978년에는 삼양화성을 비롯한 몇몇 회사들이 시험생산을 개시하였으며 그해 말에 고흡수성 수지가 처음으로 위생용품에 적용되었다. 그후 용도개발이 계속되어 1981년에는 흡수성 수지를 이용한 종이 생리대가 처음 등장하게 되었다.Subsequently, several companies developed superabsorbent materials such as polyacrylic acid and P.V.A. In 1978, several companies, including Samyang Hwaseong, began trial production. At the end of the year, superabsorbent polymers were first applied to hygiene products. Since then, the development of applications continued, and in 1981, paper sanitary napkins made of absorbent resins first appeared.
분말상의 고흡수성 수지는 폴리아크릴산염가교체, 텐폰/폴리아크릴산염, P.V.A가교체, P.V.A/폴리아크릴산염의 등이 있다.Powder-like superabsorbent resins include polyacrylate crosslinked products, tenpon / polyacrylates, P.V.A crosslinked products, and P.V.A / polyacrylates.
또한 섬유상의 수지는 폴리아크릴로니트릴의 가수분해물, 가교한 C.M.C 등이 있는데 이것은 흡수능력이 작고 가격이 비싸다. 이같은 고흡수성 수지가 갖추어여져야 하는 기능으로 흡수성, 보수성, 가공성, 안정성 등이 있다.Fibrous resins also include hydrolyzates of polyacrylonitrile and crosslinked C.M.C, which have low absorption capacity and high cost. Such superabsorbent polymers have to be equipped with functions such as absorbency, water retention, processability and stability.
현재 시판되는 제품 등에 전분-아크릴산계와 P.A.A.S계 등은 순수한 물에서 흡수성이 우수한 반면, 생리대와 같이 염수조건에 사용할 경우 흡수능력이 10배 이하로 감소하게 되어 다른 수지들과 비교할 때 큰 차이가 없다. 또한 분말상으로 되어 있어 가공성이 제한되어 있으며 생리대로 사용한 후 생분해성이 없어 환경오염을 가중시키는 단점이 있다.Starch-acrylic acid and PAAS-based products have good absorption in pure water, but the absorption capacity is reduced by 10 times or less when used in saline conditions such as sanitary napkins. . In addition, the powder form is limited in processability, and there is a disadvantage in that it is not biodegradable after using a sanitary napkin to increase the environmental pollution.
P.V.A/폴리아크릴산염 공중합체와 전분-아크릴산계는 겔강도와 열안정성 등은 우수한 것으로 알려져 있으나, 이것도 역시 분말상으로 가공성이 제한되어 있고 생분해성이 없다.Although P.V.A / polyacrylate copolymer and starch-acrylic acid are known to have excellent gel strength and thermal stability, they are also powder-processable and have no biodegradability.
아크릴로니트릴의 가수분해물과 가교한 C.M.C 등은 섬유상태로 되어 있어 가공성이 우수한 반면, 흡수능력이 작고 가격이 2-3배 비싼 단점이 있다.C.M.C and the like crosslinked with the hydrolyzate of acrylonitrile are in the form of fibers, and thus have excellent workability, but have a small absorption capacity and a cost 2-3 times higher.
본 발명은 카르복시메틸알기네이트 섬유와, 알긴산 섬유로 생리대에 흡수재로 사용할 때 다음과 같은 장점을 지니고 있다.The present invention has the following advantages when used as an absorbent in a sanitary napkin with carboxymethyl alginate fibers and alginic acid fibers.
첫째, 카르복시메틸알기네이트나 알긴산염은 섬유화할 수 있어 가공성이 우수하므로 종래의 시트형 생리대 형태를 팬티형으로 만들 수 있어 생리대를 경량화할 수 있다.First, since carboxymethyl alginate or alginate can be made into fibers, the processability is excellent, so that the conventional sheet-type sanitary napkin can be made into a panty shape, thereby reducing the sanitary napkin.
둘째, 천연고분자가 재료이므로 사용한 후 생분해가 잘 이루어져서 환경오염의 문제가 없다.Second, since natural polymer is a material, biodegradation is good after use, so there is no problem of environmental pollution.
셋째, 아클릴로니트릴 가수분해물이나 가교한 C.M.C등과 같은 섬유보다 흡수능력이 우수한 장점이 있다.Third, there is an advantage that the absorption capacity is superior to fibers such as acrylonitrile hydrolyzate or crosslinked C.M.C.
마지막으로 카르복시메틸알긴네이트는 생리대흡수재로 사용할 때, 생리혈을 응고시키는 혈액응고 특성을 지니고 있다. 생리혈이 급격히 증가하거나 생리대의 보수성이 미약하여 혈액이 외부로 누출되는 경우를 방지하기 위해 디자인의 변형, 보수성 증가를 통해 누출방지를 향상시킬 수 있으나 본 발명에서는 혈액응고성재료를 사용하므로서 일단 흡수된 혈액은 생리대내의 혈액응고인자(칼슘이온)에 의해 신속히 응고되어 혈액에 의한 피복의 더립힘을 방지할 수가 있다.Finally, carboxymethyl alginate has a blood coagulation property that coagulates menstrual blood when used as a sanitary napkin absorbent. In order to prevent the leakage of blood to the outside due to the rapid increase in menstrual blood or weak sanitary napkin, the design can be improved by changing the design and increasing the water retention, but in the present invention, once absorbed by using a blood coagulating material The blood is coagulated rapidly by the blood coagulation factor (calcium ion) in the sanitary napkin to prevent the soiling of the coating by the blood.
[실시예 1]Example 1
알긴산염 720g을, 회전교반 반응기에 넣고 40% 애탄올 3,000g, 툴루엔 1,500g을 첨가하고 강하게 교반하여 알긴산을 분산시켰다. 이렇게하여 알긴산염을 분산매중에서 반응이 일어나기 좋은 상태로 팽윤시켰다.720 g of alginate was placed in a rotary stirring reactor, and 3,000 g of 40% ethanol and 1,500 g of toluene were added and vigorously stirred to disperse the alginic acid. In this way, the alginate was swollen in a state where a reaction occurred in the dispersion medium.
교반을 멈추고 30% 가성소다 510g을 5분 간격으로 소량씩 30분간을 첨가하면서 강하게 교반했다. 이 반응으로 생성된 물은 에탄올에 흡수시켜서 가역반응으로 인한 역반응을 최소화시켰다.The stirring was stopped, and 510 g of 30% caustic soda was stirred vigorously with small amounts of 30 minutes added at 5 minute intervals. The water produced by this reaction was absorbed into ethanol to minimize the reverse reaction due to the reversible reaction.
교반을 멈추고 클로로아세트산 470g을 이에 서서히 첨가하여 온도를 35℃로 일정하게 유지시킨다. 여기에 pH를 조절하기 위하여 pH가 8이 될때까지 일정량의 탄산나트륨을 첨가한 후에 교반을 시작한다.The stirring was stopped and 470 g of chloroacetic acid was slowly added thereto to keep the temperature constant at 35 ° C. In order to adjust the pH, a certain amount of sodium carbonate is added until the pH reaches 8, and then stirring is started.
35℃에서 50분간 교반한 후 온도를 10℃ 이하로 냉각하고 교반을 멈추었다.After stirring at 35 ° C. for 50 minutes, the temperature was cooled to 10 ° C. or lower and the stirring was stopped.
분산액을 제거하고 생성된 카르복시메틸알기네이트에 95% 에탄올 1500g을 넣어 남아 있는 분산액을 완전히 제거한 후 여과하여 120℃에서 건조시켜 카르복시메틸알기네이트를 얻었다.The dispersion was removed, and 1500 g of 95% ethanol was added to the resulting carboxymethyl alginate to completely remove the remaining dispersion, followed by filtration and drying at 120 ° C. to obtain carboxymethyl alginate.
[실시예 2]Example 2
카르복시메틸알기네이트를 증류수에 용해하여 2% 용액으로 만든 다음 습식방사장치에 넣고 섬유를 제조했다.Carboxymethyl alginate was dissolved in distilled water to make a 2% solution, and then placed in a wet spinning device to prepare fibers.
방사압력은 0.5-1.0kgf/cm2, 방사속도는 5-8m/min으로 방사하여 응고조내에서 섬유형성이 잘 이루어지게 된다. 방사판은 방사노즐의 L/D는 110, 노즐공정은 100 마이크로미터이며, 응고조속에는 염화칼슘이 함유된 응고액이 연속적으로 순환시키면서 응고된 섬유된 연신롤라를 통하여 연신되면서 건조시켰다. 건조된 섬유는 니들펀치를 통하여 카르복시메틸알기네이트 부직포를 제조하였다.The spinning pressure is 0.5-1.0kgf / cm 2 and the spinning speed is 5-8m / min, which makes fiber formation well in the coagulation bath. The spinneret was L / D of the spinneret 110 and the nozzle process was 100 micrometers, and dried in the coagulation bath while the coagulating solution containing calcium chloride was continuously circulated through the coagulated stretching roller. The dried fibers produced a carboxymethyl alginate nonwoven fabric through a needle punch.
[실시예 3]Example 3
이소프로판올 100g과 물 400g의 혼액에 칼슘용해제인 소듐아세테이트를 50g 첨가하여 세척액을 조제하고, 부직포 무게의 30배에 해당하는 세척액을 부직포 위에 분무시켜 부직포가 완전히 젖게하고, 이 부직포를 40℃에서 30분간 방치하고 이 부직포를 45°로 경사지게 기울여 30분간 세척액을 제거하고, 부직포 무게에 100배에 해당하는 50%에 탄올을 위 부직포에 부어 미반응 세척액을 제거했다.50 g of sodium acetate, a calcium dissolving agent, was added to a mixture of 100 g of isopropanol and 400 g of water to prepare a washing solution. It was left to stand and the nonwoven fabric was inclined at 45 ° to remove the washing solution for 30 minutes, and 50% of the weight of the nonwoven fabric was poured into the upper nonwoven fabric by 50% of the weight of the nonwoven fabric to remove the unreacted washing solution.
이 같은 미반응 세척액 제거 공정 조작은 3회 반복했다.This unreacted washing liquid removal process operation was repeated three times.
미반응세척액이 제거된 부직포는 80% 에탄올을 소량씩 부어 섬유의 점착을 방지시켰다.The non-woven fabric from which the unreacted washing solution was removed was poured with a small amount of 80% ethanol to prevent adhesion of the fibers.
부직포는 45° 경사지게 기울여 부직포 사이에 남아 있는 세척액을 제거하여 섬유를 얻고, 이를 60℃ 건조기에서 20분간 건조시켰다.The nonwoven fabric was tilted at 45 ° to remove the washing solution remaining between the nonwoven fabrics to obtain fibers, which were dried in a 60 ° C. dryer for 20 minutes.
본 발명에서는 카르복시메틸알기네이트와 알간산염을 혼합한 섬유의 물성은 표 1과 같으며, 시료에 대한 흡수력은 티-백법에 의하여 측정하였다.In the present invention, the physical properties of the fiber mixed with carboxymethyl alginate and alganate are shown in Table 1, and the absorbency of the sample was measured by the tea bag method.
[표 1]TABLE 1
알긴산염의 물 흡수량은 38배에서 C.M.A는 110까지 혼합비율에 따라 흡수량이 단계적으로 변화함을 나타내었다.The water uptake of alginate was 38-fold and the uptake of C.M.A was up to 110 depending on the mixing ratio.
이것은 카르복시메틸기가 증가함에 따라 흡수제 내부의 이온 농도가 증가한 결과이다.This is a result of the increase in the ion concentration inside the absorbent as the carboxymethyl group increases.
외부전해질이 있는 용액, 즉, 생리혈에서의 흡수량은 현저한 감소를 나타내고 있는 것은 명소조건에서는 전해질에 의한 침투압이 감소한 결과이다. 이상의 결과로 제조단가와 흡수력간의 상호 관계에서 볼 때 70-100% C.M.A를 사용하는 것이 적합하다.The amount of absorption in the solution with external electrolyte, that is, menstrual blood, is markedly reduced as a result of the decrease in penetration pressure by the electrolyte under the spot condition. As a result, it is suitable to use 70-100% C.M.A in view of the correlation between manufacturing cost and absorbency.
[비교실시예 1]Comparative Example 1
다음은 카르복시메틸알기네이트를 이용한 생리대와 시판중인 생리대의 흡수력에 대한 비교를 표 2에 나타내었다.Next, Table 2 shows a comparison of the absorbency of the sanitary napkin using the carboxymethyl alginate and commercially available sanitary napkin.
[표 2]TABLE 2
기존 생리대와 본 발명의 섬유를 티-백법으로 물흡수량과 생리혈 흡수량을 측정한 결과 카르복시메틸알기네이트 섬유의 흡수능력이 우수함을 알 수 있다.Existing sanitary napkins and fibers of the present invention by measuring the water absorption and menstrual blood absorption amount by the tea bag method can be seen that the absorption capacity of the carboxymethyl alginate fiber is excellent.
[비교실시예 2]Comparative Example 2
카르복시메틸알기네이트와 현재 시ㅍㄴ중인 생리대의 혈액응고성에 대한 비교를 표 3에 나타내었다. 혈액응고성은 전혈액응고시험법에 의하여 실험하였다.Table 3 shows a comparison of the carboxymethyl alginate and the blood coagulation of the sanitary napkin currently in use. Blood coagulation was tested by whole blood coagulation test.
[표 3]TABLE 3
Claims (2)
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Application Number | Priority Date | Filing Date | Title |
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KR1019880016160A KR910000430B1 (en) | 1988-12-05 | 1988-12-05 | Sanitary napkin |
US07/445,186 US5080657A (en) | 1988-12-03 | 1989-12-01 | Alginic |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019880016160A KR910000430B1 (en) | 1988-12-05 | 1988-12-05 | Sanitary napkin |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900009034A KR900009034A (en) | 1990-07-02 |
KR910000430B1 true KR910000430B1 (en) | 1991-01-25 |
Family
ID=19279884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880016160A KR910000430B1 (en) | 1988-12-03 | 1988-12-05 | Sanitary napkin |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR910000430B1 (en) |
-
1988
- 1988-12-05 KR KR1019880016160A patent/KR910000430B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR900009034A (en) | 1990-07-02 |
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