Page 21 - Marix Technology

2009년 Marix Technoloy

3.2. water soluble soap

a. NH 4 -St, Na-St, K-oleate와 같은 물질이 있다.
b. 수용성 액상으로 존재하기 때문에 antidusting agent나 surface lubricant 보다는plasticizer로 작
용하며, starch-bound coating에서 점도를 향상시키기도 한다.

[표 12] various effects of various lubricants

Brookfield Viscosity (at 100 rpm) , cps
lubricants
gloss(Hunter, 75 ◦ ) dusting index b
control (no lubricant) 760 2200
poly ethylene glycol (low mol wt.) 880 1920
poly ethylene glycol (high mol wt.) 700 2000
calcium stearate dispersion (platelet) 1260 1840
calcium stearate dispersion (fused) 2400 2000
sodium stearate 3600 1875
ammonium stearate dispersion 3200 1840
fatty amide dispersion 1760 1875
sulfated castor oil 2000 1760
polyethylene emulsion 880 1960
wax emulsion 960 2000
PEG 400 monooleate 2800 1840

a. coating formula #1; 60% solids, 90/10 #2 clay, calcium carbonate pigment, all starch binder (15% on
pigment), 0.2% TSPP (on pigment)
b. coating formula #2; 60% solids, 50 parts No.1 clay, 40 parts high gloss clay, 10 parts TiO , 8% medium viscosity
2
protein and 8% SBR latex (on pigment), ammonia to pH 9.0, 0.2% TSPP (on pigment)

3.3. sulfated and sulfonated oils

a. 주요물질 ; turkey red oil (sulfated caster oil), sulfated red oil (sulfated oleic acid), sulfated

sperm oil, etc
b. 상온에서 액체이기 때문에 water soluble soap처럼 윤활제를 코팅하는데 이용된다.
c. 보통 plasticizer, fold, leveling effect를 위해서 사용한다.

d. 대부분의 latex-bound coatings와 potein-bound coating에서 감점제로 작용하기도 한다.

3.4. fatty esters → DC-110AD
a. 주요물질 ; polyoxyethylene fatty acid esters 외

b. plasticizer와 fold-improving agent로 이용
c. 간혹 윤활제로도 이용된다.

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