WESCOTE®
Highly derivatized starch for use as a coating/size press additive.

WESCOTE® is a coating/size press additive.
WESCOTE® is a highly derivatized starch.
WESCOTE® has the water-holding characteristics of CMC.
WESCOTE® forms a very flexible film.
WESCOTE® has the strength of synthetic binders.
WESCOTE® produces paper that prints with little dot gain and high blister resistance.
WESCOTE® starches are custom made for each customer's application. Our sales and service personnel work closely with mills to match the mill's viscosity requirements.
WESCOTE® starches are available in a wide variety of viscosity ranges.

Successful applications of WESCOTE® starches include:

• Opaque papers – Replacing more expensive binders at equal or improved paper machine runnability and printability while reducing costs.
• Coating formulations - Replacing CMC to reduce costs.
•  Coated two side - Produced a C2S solvent holdout sheet that did not blister. 
•  Paper plates – giving grease resistance. 
•  Fine papers – As an additive to size press starches to improve ink-jet printing, reduce linting and milking and increase surface strength.
•  Pet food bags – replacing fluoro chemicals
• LWC roto – replacement of latex 

 
TRIAL RESULTS:

 WESCOTE® as a CMC & HES Replacement in #2 & #3 LWC Grades

Trial Objective:
Replace CMC and ethylated corn starch in current coating formulas with a cost savings

Trial:
Coating formula was changed from:
1. replaced 70% of the CMC with Wescote® on a 1 part CMC to 0.8 part of Wescote® basis
2. replaced the HES with Wescote® on a 1 part HES to 0.4 parts of Wescote® basis
3. Reduced crosslinking resin by 70%

Trial Results:
Mill trial was a success. The paper was commercially printed and tested. The print tests showed a 30% improvement in print quality. Mill savings were calculated at $500,000/year.

WESCOTE® Case Histories

Coating
1. C2S Solvent Holdout:
• Off machine roll coater
• 55# & 82# coated two side grades
• Solvent holdout
• Blister of 210ºC

2. CMC Replacement
• Direct pound for pound replacement
• Equal runnability
• Equal performance
• Cost per ton reduced significantly.

3. Rheology Additive (Alco Gum) Replacement
• CLC
• Offset grade
• 3-5 point improvement in gloss
• Slight improvement in IGT
• Other tests equal
• Cost per ton reduced significantly.

Size Press
1. Pensize Replacement
• Conventional flooded nip size press
• Blended with oxidized starch
• Recycled 60# offset
• Pound for pound replacement
• Equal paper machine runnability
• Slight paper improvements
• Equal printing quality
• Cost savings

2. Porosity Improvement
• Postal return card
• 25% substitution of size press starch
• 30 # per ton total pickup
• Increased porosity by 14 seconds Gurley to 24 seconds

3. Stand alone size press starch
• Cover & Specialties, and ink jet grades
• Improved drying
• Improved paper properties-pick, opacity, ink swell and Plowman print test
• Improved commercial printing properties