KR20030038039A - preparation method of binder for uv protector - Google Patents

preparation method of binder for uv protector Download PDF

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Publication number
KR20030038039A
KR20030038039A KR1020010069445A KR20010069445A KR20030038039A KR 20030038039 A KR20030038039 A KR 20030038039A KR 1020010069445 A KR1020010069445 A KR 1020010069445A KR 20010069445 A KR20010069445 A KR 20010069445A KR 20030038039 A KR20030038039 A KR 20030038039A
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South Korea
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binder
sodium hydroxide
ultraviolet screening
produce
colloidal
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KR1020010069445A
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Korean (ko)
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최창현
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주식회사 한웅크레비즈
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Priority to KR1020010069445A priority Critical patent/KR20030038039A/en
Publication of KR20030038039A publication Critical patent/KR20030038039A/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/26Aluminium; Compounds thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/51Chelating agents

Abstract

PURPOSE: A process of preparing a colloidal binder for an ultraviolet screening agent is provided. Therefore, the binder exhibits excellent ultraviolet screening effect when blended with an ultraviolet screening agent and a stabilizer. CONSTITUTION: Alumina powder(Al2O3) is mixed with an aqueous solution of sodium hydroxide at 50 to 100deg.C at a stirring speed of 300 to 1,000rpm for 6 to 48hr and then neutralized with hydrochloric acid to produce a binder for an ultraviolet screening agent. A composition for shielding ultraviolet is characterized in that it contains the binder and 2Na-EDTA. For an example, 10g of Al2O3 having a particle size of 5 microns or less and a purity of 99.9% is mixed with 48g of sodium hydroxide having a purity of 99.5% or more at 80deg.C and 500rpm for 24hr to produce a slurry. Thereafter, the slurry is added with 40ml of HCl to produce a colloidal binder, and the colloidal binder is agitated with 2g of 2Na-EDTA at 200rpm for 30min.

Description

자외선 차단제용 바인더 제조방법{preparation method of binder for uv protector}Preparation method of binder for uv protector

본 발명은 자외선 차단제용 바인더의 제조방법에 관한 것으로, 각종 산업이 그다지 발달되지 않았을 때에는 입사광(入射光)에 관심도가 없었으나 수년전부터 입사광(入射光)을 장시간 동안 쬐인 많은 사람들로부터 태양광선으로 인한 각종 피부병을 얻는다는 사실과 생명의 위협이 있다는 여러 매스미디어들로부터 우리 인간들은 경각심을 갖도록 하였고 이를 차단시키고 방지를 해주는 상품들이 속속히 개발되어 시판되고 있을 뿐만 아니라 이들의 상품이 날로 증가의 추이를 보이게 되었다.The present invention relates to a method for manufacturing a binder for a sunscreen, and when various industries are not developed, there is no interest in incident light. However, many years ago, many people who have been exposed to incident light for a long time are exposed to sunlight. From the mass media that have various skin diseases and the threat of life, we have aroused our awareness, and products that block and prevent them are being developed and marketed as well. It became.

그러나 이들의 상품은 인체의 유해성 성질을 갖고 있는 것도 있고 무기광물들을 이용해서 사용을 하기도 한다.However, some of these products have harmful properties to the human body and may be used by using inorganic minerals.

그러다보니 기계적 성질을 이용하여 분쇄된 것들을 중량제와 합첨하여 원하는 곳에 사용을 할 시 기술적인 한계에 머무르거나 혹은 효능이 그다지 좋지 않은 결과를 가져왔다. 또한 이들이 제일 큰 단점은 입자 마이크로(㎛)의 한계선을 넘지 못하였으며, 또한 합첨시 본 소재의 성질을 변형시키는 등의 문제점이 있었다. 또한 장기 보존이 어려운 문제점도 있었다.As a result, the use of mechanical properties to crush the ground with a weighting agent has resulted in the technical limitations or poor efficacy. In addition, the biggest disadvantage is that they did not exceed the limit line of the particle micro (μm), and also had problems such as modifying the properties of the material when the plunge. In addition, long-term preservation was difficult.

따라서, 본 발명의 목적은 소량으로도 넓은 도포면적을 갖는 자외선 차단제용 바인더를 제공하는 것이다.Accordingly, it is an object of the present invention to provide a binder for sunscreen having a large application area even in a small amount.

본 발명의 다른 목적은 안정한 콜로이드 형태의 자외선 차단제용 바인더를 제공하는 것이다.Another object of the present invention is to provide a binder for a sunscreen in the form of a stable colloid.

상기 본 발명의 목적은, 수산화나트륨(NaOH) 수용액에 알루미나 파우더(Al2O3)를 가하여 가열하면서 교반시킨 다음, 염산을 가해 중성으로 만드는 것으로 구성되는 자외선 차단제용 바인더의 제조방법에 의해 달성된다.The object of the present invention is achieved by a method for producing a binder for sunscreens consisting of adding alumina powder (Al 2 O 3 ) to an aqueous solution of sodium hydroxide (NaOH), stirring the mixture, and making it neutral by adding hydrochloric acid. .

본 발명을 보다 상세하게 설명한다.The present invention will be described in more detail.

알루미나 파우더(Al2O3)는 입자크기 5㎛ 이내와 순도 99.9% 이상의 것을 엄선한다. 이를 액상(Colloidal)으로 만들기 위해 우선, 수산화나트륨(NaOH) 순도 99.5% 이상의 것을 선정하여 용매로 순수 물(H2O)를 사용하여 수산화나트륨(NaOH) 수용액을 제조한다. 수용액의 농도는 투입되는 파우더의 양과 안정제의 농도 등에 따라 조절가능하며, 10-50%가 바람직하다. 이 수용액에 위에서 엄선된 알루미나 파우더(Al2O3)를 서서히 투입시킨다. 위의 공정에서 얻어진 것을 다시 50-100℃의 온도를 유지시키면서 300-1000RPM의 교반속도로 6-48시간동안 교반시켜 육안으로 백색의 엷은 슬러리(Slurry)로 된 것을 확인한다. 이를 다시 pH를 중성(6~8)으로 만들어 주기위해 염산(HCl)을 첨가한다. 염산을 첨가하면 색상은 우유빛으로 되고 이때에 알루미나 파우더(Al2O3)는 매우 안정된 액상(Colloidal)으로 된다. 첨가되는 염산의 양은 NaOH 수용액의 농도와 양에 따라 결정되며, NaOH와 동일한 당량의 양으로 첨가되는 것이 가장 바람직하다.Alumina powder (Al 2 O 3 ) is carefully selected to the particle size of less than 5㎛ and purity of 99.9% or more. In order to make it a liquid (Colloidal), first, a sodium hydroxide (NaOH) purity of 99.5% or more is selected to prepare a sodium hydroxide (NaOH) aqueous solution using pure water (H 2 O) as a solvent. The concentration of the aqueous solution is adjustable according to the amount of powder and stabilizer concentration, etc., 10-50% is preferred. The alumina powder (Al 2 O 3 ) selected above is slowly added to this aqueous solution. What was obtained in the above process was again stirred for 6-48 hours at a stirring speed of 300-1000 RPM while maintaining the temperature of 50-100 ℃ to confirm that it was a white light slurry (visual slurry). Hydrochloric acid (HCl) is added to make this pH neutral (6-8). When hydrochloric acid is added, the color becomes milky. At this time, alumina powder (Al 2 O 3 ) becomes a very stable liquid (Colloidal). The amount of hydrochloric acid added is determined according to the concentration and amount of the NaOH aqueous solution, and most preferably added in the same amount as NaOH.

이렇게 제조된 바인더는 2Na-EDTA를 안정제로 첨가한 다음, 아연 콜로이드를 자외선 차단제로 부가하여 교반함으로써 안정한 자외선 차단제를 제조하는데 사용된다. 안정제는 2% 미만으로 부가되며, 역시 수용액의 형태로 부가할 수 있다.The binder thus prepared is used to prepare a stable sunscreen by adding 2Na-EDTA as a stabilizer and then adding zinc colloid as a sunscreen and stirring. Stabilizers are added in less than 2% and may also be added in the form of an aqueous solution.

본 발명의 자외선 차단제용 바인더는 매우 적은 미량만으로도 넓은 도포 면적을 가질 수 있도록 한 것으로 자외선 차단 효능을 향상시킬 수 있다.The binder for the sunscreen of the present invention is to be able to have a wide coating area with only a very small amount can improve the sunscreen efficacy.

예를 들어, 20㎚ ~ 30㎚(나노미터)의 크기인 경우에는 1g/400㎡ ~ 450㎡라는 경이적인 영역을 커버할 수 있다. 입자가 작아서 좋은 이유는 즉, 작은 입자들은 낮은 진동수 보다 높은 진동수의 빛을 더 산란시키기 때문이며, 그리고 입사광(入射光)에 대하여 90°방향으로 때로는 강하게 편광이 되기도 한다. 화장품에 사용하고 있는 트윈케이크, 기타 자외선 차단제에 쓰이는 작은 입자들은 높은 진동수의 빛, 즉 자외선을 산란시키게 되어 자외선 차단제의 역할을 우수하게 수행할 수 있도록 한다.For example, in the case of the size of 20 nm-30 nm (nanometer), it can cover the phenomenal area | region of 1 g / 400 m <2> -450 m <2>. The reason why the particles are small is that small particles scatter more light at higher frequencies than low frequencies, and sometimes become strongly polarized in the 90 ° direction to incident light. Small particles used in twin cakes and other sunscreens used in cosmetics can scatter high-frequency light, ie UV light, so that the sunscreen can perform well.

본 발명을 실시예에 의거 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to Examples.

실시예 1 바인더의 제조Example 1 Preparation of Binder

알루미나 파우더(Al2O3) 입자크기 5㎛ 이내와 순도 99.9% 이상의 것을 엄선하였다. 이를 액상(Colloidal)으로 만들기 위해 수산화나트륨(NaOH) 순도 99.5% 이상의 것을 선정하여 순수 물(H2O)과 수산화나트륨(NaOH)을 2:1 무게 중량비(Wt)로 맞추어 용질액의 고형분(NOV)값을 50%로 조절하였다.Alumina powder (Al 2 O 3 ) selected within the particle size 5㎛ and more than 99.9% purity. In order to make it into a liquid, sodium hydroxide (NaOH) purity was selected to be 99.5% or more, and pure water (H 2 O) and sodium hydroxide (NaOH) were adjusted to a 2: 1 weight ratio (Wt). ) Was adjusted to 50%.

엄선된 알루미나 파우더(Al2O3) 10g을 수산화나트륨 수용액 48g에 서서히 투입시킨 다음, 80℃의 온도를 유지시키면서 500RPM의 교반속도로 24Hr동안 교반시켜 육안으로 백색의 엷은 슬러리(Slurry)로 된 것을 확인하였다.10 g of carefully selected alumina powder (Al 2 O 3 ) was slowly added to 48 g of aqueous sodium hydroxide solution, and then stirred at 24 rpm for 24 Hr while maintaining a temperature of 80 ° C. to give a white thin slurry to the naked eye. Confirmed.

염산(HCl) 40㎖을 부가하여 pH를 7.8로 조절하였다. 생성물의 색상은 우유빛으로 되어있고 이때에 알루미나 파우더(Al2O3)는 매우 안정된 액상(Colloidal) 상태이다.40 mL of hydrochloric acid (HCl) was added to adjust the pH to 7.8. The color of the product is milky, in which the alumina powder (Al 2 O 3 ) is in a very stable colloidal state.

실시예 2 자외선 차단제의 제조Example 2 Preparation of Sunscreen

실시예 1에서 얻어진 알루미나(Al2O3) 액상(Colloidal)을 바인더로 하고 아연 액상(Colloidal)을 자외선 차단 첨가제로서 선정한다. 이때 액상은 고형분(NOV)의 값이 수성타입 및 유성타입 두 타입 중 수성 타입의 10%의 고형분인 것을 엄선한다.Alumina (Al 2 O 3 ) liquid obtained in Example 1 (Colloidal) is used as a binder and zinc liquid (Colloidal) is selected as a sunscreen additive. At this time, the liquid content is carefully selected that the value of the solid content (NOV) is the solid content of 10% of the aqueous type of the aqueous type and the oil type of the two types.

바인더 85g에 이온된 것을 안정한 상태로 분자 고리를 연결시켜 주는 촉매제로서 2Na-EDTA 수용액 2g(2Na-EDTA 0.5% 수용액)을 200RPM의 속도로 서서히 교반하면서 30분동안 첨가시켰다.As a catalyst for linking molecular rings in a stable state with the ion bound to 85 g of the binder, 2 g of a 2Na-EDTA aqueous solution (0.5% aqueous 2Na-EDTA) was added for 30 minutes with agitation at a speed of 200 RPM.

생성된 슬러리(Slurry)에 아연 액상(Colloidal) 13g을 스프레이 분사방법으로 2시간동안 첨가하며, 이때 교반기는 2,000RPM의 속도로 교반시켜 엉킴을 방지하여 줌으로써 안정된 무기 화합물을 얻었다.13 g of a zinc liquid (Colloidal) was added to the resulting slurry by a spray spraying method for 2 hours. At this time, the stirrer was stirred at a speed of 2,000 RPM to prevent entanglement to obtain a stable inorganic compound.

실시예 3 제품에의 적용Example 3 Application to Products

실시예 2에서 얻어진 무기질 고분자 시료를 4가지 형태의 시편에 각각 도포하여 경화시켜 아래의 표1과 같은 결과를 얻을 수 있었다.The inorganic polymer samples obtained in Example 2 were applied to each of four types of specimens and cured to obtain the results as shown in Table 1 below.

표1Table 1

시료NoSample No 시편크기Specimen Size 시편재질Specimen Material 도포방법Application method 경화조건Curing condition 도막두께Film thickness 내구성durability 부착성Adhesion 1One 30㎝x30㎝30cmx30cm 유리Glass 스프레이spray 자연경화Natural hardening 100㎛±10100㎛ ± 10 약함weakness 송곳으로 긁혀짐Scratched with awl 22 "" 유리Glass 스프레이spray 150℃ 경화150 ℃ hardening 100㎛±10100㎛ ± 10 매우강함Very strong 안긁혀짐Not scratched 33 "" 종이paper 스프레이spray 자연경화Natural hardening 100㎛±5100㎛ ± 5 "" "" 44 "" 헝겊조각A piece of cloth 디프코팅Deep coating 자연경화Natural hardening 50㎛50 μm "" "" 55 "" 멜라민조각Melamine sculpture 스프레이spray 150℃경화150 ℃ curing 100㎛100 μm "" ""

위의 표 1의 결과를 보면 매끄럽고 열을 가하지 않은 상태에서는 내구성과 부착성이 안 좋은 결과를 볼 때에 열경화 시키는 것이 바람직하며, 표면이 매끄럽지 않은 곳에서는 침투력이 있어서 부착성이 매우 양호한 것을 알 수 있다.The results in Table 1 above show that it is preferable to perform heat curing when the result of poor durability and adhesion is obtained in a smooth and unheated state, and the adhesion is very good because of penetration in the case where the surface is not smooth. have.

이렇게 코팅된 모든 물질에는 자외선 차단력이 98% 이상의 효과를 갖고 있음을 확인할 수 있었다.All of the coating material was confirmed that the UV protection has an effect of more than 98%.

본 발명의 바인더는 분말형태가 아닌 액상 콜로이드 형태로서 자외선 차단제 및 안정제와 혼합하는 경우 우수한 자외선 차단효과를 나타낸다.The binder of the present invention shows a good sunscreen effect when mixed with a sunscreen and a stabilizer in the form of a liquid colloid rather than a powder.

Claims (3)

수산화나트륨(NaOH) 수용액에 알루미나 파우더(Al2O3)를 가하여 혼합한 다음, 염산을 가해 중화시키는 것으로 구성되는 자외선 차단제용 바인더의 제조방법.Alumina powder (Al 2 O 3 ) is added to an aqueous solution of sodium hydroxide (NaOH) and mixed, followed by neutralization by addition of hydrochloric acid. 제 1 항에 있어서, 상기 혼합은 50-100℃의 온도에서 300-1000rpm의 교반속도로 6-48시간 행해지는 것을 특징으로 하는 제조방법.The method according to claim 1, wherein the mixing is performed for 6-48 hours at a stirring speed of 300-1000 rpm at a temperature of 50-100 ° C. 제 1 항의 방법에 의해 제조된 바인더(Binder)와 2Na-EDTA 및 자외선 차단제를 포함하는 것을 특징으로 하는 자외선 차단용 조성물.A composition for blocking sun, comprising a binder prepared by the method of claim 1, 2Na-EDTA, and a sunscreen.
KR1020010069445A 2001-11-08 2001-11-08 preparation method of binder for uv protector KR20030038039A (en)

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