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DOWSIL™ 71 Additive

수성 코팅을 위한 효과적인 거품 조절제로 저농도에서 시행합니다. 소수성 입자가 없으며 고전단 혼합 시 안정적입니다. 특히 수성 잉크의 경우 효과적으로 거품을 조절하면서 외관에 문제가 발생하지 않도록 균형을 제공합니다.

혜택:

100% 유기개질된 실리콘; 자기유화; 낮은 전단(shear)에 쉽게 통합할 수 있습니다. 극성 용매에 희석될 수 있습니다. 다양한 잉크 및 OPV 수지와 호환성. 매우 적게 사용 가능. 제조 및 가공시 소포성 우수. 장기 보관 후에도 지속적인 성능 유지. 필름 처리된 자재에서도 결함 방지. 미국, 유럽 및 유럽 내 일부 현지국가에 식품 접촉 분야에 대한 규정 준수.

속성

*이 값은 일반적인 속성이며 제품 사양에는 사용되지 않습니다.

물리적 특성

  • 동적 점도 Yes No 500 Centipoise
  • 비중 @ 25C Yes No 1
  • 색상 Yes No 투명 무색에서 흐릿한 액체
  • 성능 장점 Yes No 폼 조절, 호환성
  • 솔벤트리스 Yes No true
  • 수성 시스템 Yes No true
  • 시스템 Yes No Water Borne
  • 실리콘 HLB 함량 Yes No 1.31 %
  • 액티브 컨테츠 Yes No 100 %
  • 유효 기간 Yes No 720 Days
  • 인화점, Closed Cup Yes No > 100 °C
  • 제품 Delivery Yes No Polymer
  • 타겟 포뮬레이션 Yes No Water Borne
  • 표면 장력(@ 1% actives, 25 °C) Yes No 26.4 mN/m
  • 혜택 Yes No 폼 조절
  • 흐림점 (1 wt% actives aqueous solution) Yes No < 0 °C

Additives for long-lasting, defect-free foam control in inks and overprint varnishes

Are you looking for a long-lasting foam control additive for your ink or overprint varnish (OPV) that performs during both the manufacturing and printing processes and does not cause surface defects, even on filmic substrates? Is storage stability a concern? Do you also need to meet regulatory requirements for various food-contact applications? Then consider DOWSIL™ 71 Additive and DOWSIL™ 74 Additive. These foam control agents provide excellent, long-lasting foam control at reduced use levels while maintaining the integrity of the coating, and they comply with U.S., European and certain local country regulations within Europe for food contact.

Unlike silicone emulsion products, DOWSIL™ 71 and 74 Additives are supplied as 100% organomodified silicones. They are low viscosity, surfactant-like compounds that self-emulsify and thus are easy to incorporate at low shear, while also avoiding any issues with emulsion instability. They are also highly effective in a wide range of acrylic resin formulations, providing excellent foam control at much lower use levels without causing cratering and other surface defects associated with silicone emulsions, even on non-absorbent filmic substrates.

Effective foam control at very low use levels

With their unique organomodified silicone structure, DOWSIL™ 71 and 74 Additives provide excellent foam control at much lower use levels than competitive emulsion technology.

Figure 1: DOWSIL™ 71 Additive, for example, can be used at nearly half the level of a silicone emulsion in a waterborne flexographic ink.

Graph: DOWSIL™ 71 Additive can be used at nearly half the level of a silicone emulsion in a waterborne flexographic ink

DOWSIL™ 71 Additive outperforms a silicone emulsion in a waterborne OPV after nine weeks of storage

Because it is self-emulsifying, DOWSIL™ 71 Additive continues to provide excellent foam control during printing even after long-term storage when used at up to five times less than a silicone emulsion (Fig 2.)

Figure 2: Storage performance of DOWSIL™ 71 Additive in a waterborne flexographic ink

Graph: Storage performance of DOWSIL™ 71 additive in a waterborne flexographic ink

DOWSIL™ 71 Additive provides a defect-free surface in a waterborne flexographic ink

Unlike silicone emulsions, which contain silica particles that can lead to defect formation, DOWSIL™ 71 and 74 Additives are highly organic in nature. They are compatible with a wide range of acrylic resins and provide defect-free surfaces.

Silicone emulsion defects vs. defect-free DOWSIL™ 71 Additive

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No Food Contact Letters are available online for this material
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DOWSIL™ 71 Additive
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DOWSIL™ 71 Additive
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