SH219: High Refractive Index Silica Bead. Soft Focusing Agent

SH219: High Refractive Index Silica Bead Soft Focusing Agent What is Soft Focus?  Soft focus powder possesses the ability to blur skin troubles ...
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SH219: High Refractive Index Silica Bead

Soft Focusing Agent

What is Soft Focus? 

Soft focus powder possesses the ability to

blur skin troubles such as

wrinkles. 

Wrinkles on the skin are perceptible though the contrast of light and dark that accentuates even very subtle creases.

Hard Focus

Soft Focus

In photography, soft focus is a lens flaw, in which the lens forms images that are blurred due to spherical aberration. A soft focus lens deliberately introduces spherical aberration in order to give the appearance of blurring the image while retaining sharp edges The soft focus effect is used as an effect for glamour photography, because the effect eliminates blemishes, and in general produces a dream-like image.



Instead of covering the trouble area by highly opaque materials such as TiO2,

soft focus powder diffuses optical light within the structures. 

Soft focus powder does not produce whiteness, but rather natural translucent finish

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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Marketing Claims of Soft Focus in Skin Care

Marketing Claims of SOFT FOCUS • Less visible. • Visibly younger. • Light diffusers help hind imperfections to help brighten eyes An Anti Wrinkle Cream Correcting serum for Lines/Wrinkles/Age Spot Instantly see up to a 29% reduction in fine, dry lines. Skin is luminous. An Eye Care Cream Visibly Rejuvenating Eye Care Bags and dark circles are less visible. wrinkles are diminished and the eye area looks visibly younger.

When applied, immediately and visibly smoothed • Instantly fine lines reduced • The look of lines and wrinkles is significantly reduced • Diminishes the look of darkness and wrinkles for highly defined luminosity

around the eyes • Notice immediately brighter, smoother eyes. Darkness and shadows diminish and eyes appear more luminous • Delivers intensive anti-wrinkle

Micro beads are widely used in skin care for soft focus effect

action to help reduce the depths of lines and crow's feet

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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How to Soft Focus effectively?

*

* Fresnel Loss When light rays cross the boundary from one medium to another, there is a loss due to reflection at the boundary, this is called Fresnel loss and is calculated with the following expression Fresnel Loss = 100*(Rm-Rp)2/(Rm+Rp)2

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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High Refractive Index Bead SH219 is

non-nano

1.8

with the refractive index of

Grade

Composition (Silica/TiO2)

SH219

Silica 75% TiO2 25%

1.8

none

5㎛/ 12nm

SH219-AS

Silica 75% TiO2 25%

1.8

Alkyl Silane

5㎛/ 12nm

ECOCERT material

SEM

Refractive Index

Surface treatment

Silica Bead size / TiO2 crystal size

TEM TiO2 TiO2

TiO2

TiO2 crystals are embedded inside silica bead

TiO2

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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Refractive Index 1.8

Refractive Index Of cosmetic powders 1.0 1.43: Silicone 1.47: Silica 1.49: PMMA 1.5 1.51: Glass, CaCO3 1.52: Urethane 1.53: Alumina: 1.56: Talc, Mica 1.63: BaSO4

2.0

2.5

RI formula:

n  n f 2

2 i i

i

n= refractive index i=species of component f= volume fraction of component

1.80: SH219 2.03: ZnO

SH219 2.5: TiO2 anatase 2.7: TiO2 rutile

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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Light Scattering Table Based on Refractive Index Theoretical explanation about why SH219 is such an efficient Optical Blurring Agent

Rm: Refractive Index of Media Rp: Refractive Index of Powder

Light scattering is calculated by Fresnel loss between RI of powder and RI of media

At cyclomethicone 100% formula, SH219 is more effective than silicone bead by 160 TIMES in theory

160X

22.8X

14.5X

8.8X

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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SH219 application Eye Care & Wrinkle Care

SH219 is by far the most efficient soft focusing agent as shown here

RI=1.8

Ideal micro bead for eye care & anti wrinkle which need soft focus effect

RI=1.47

2%

SH219

5%

4%

10%

6%

15%

8%

20%

5%

Silica Bead: 130L

5%

10%

10%

15%

15%

20%

20%

Looks like 3% of SH219

Urethane Bead PU170

RI=1.52

Looks like 4% of SH219

PMMA Bead PMMA-S

RI=1.49

Looks like 5% of SH219

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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SH219 application: Primer SJF-0801-Primer-ver.1.0 SH219 Approved by ECOCERT, Natural origin Soft focus

Phas e A

agent

No.

Trade Name

%

1

Water

Water

45.44

2

Glycerin

Glycerin

5.00

3

KF6100

4

Phenoxy ethanol

5

TSF405

6

KSG16

C

7

Sepigel305

D

8

SH219

B

INCI Name

Polyglyceryl-3Disiloxane Dimethicone

1.00

Phenoxyethanol

0.10

Cyclopentasiloxane

10.00

Dimethicone/Dimethicone Crosspolymer Polyacrylamide/C13-C14 Isoparaffin/Laureth-7 Silica/ Titanium dioxide

Primer

30.00 1.00 7.50

What is Primer? Foundation primer is a relatively new product offered on the market. It creates a barrier between your skin & the foundation and helps the foundation go on smoothly. it actually works much like a moisturizer under your foundation does: they ease the application of foundation and are meant to create a barrier between foundation and skin. Makeup artists swear primers go one step further than moisturizers: They'll even out skin tone, help your makeup stay on longer

Marketing Claims of Primers Going make-up free Skin look smoother and more even-toned on my make-up free days Primer primarily meant to mattify Oil free moisturizer

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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SH219 for Lip Stick

Generally, inorganic white pigments such as titanium dioxide and zinc oxide have been used in foundations and lipsticks to provide good finish. But there are several problems, such as it’s poor dispersion and uneven application color. the composite of porous spherical silica and titanium dioxide bead, can improve these problems and provide a new make-up result.

Skin tone

Color match of Mass tone & Skin tone by the use of SH219

Mass tone

Copyright © 2014 by SUNJIN Chemical Co. LTD ALL RIGHTS RESERVED.

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