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Case Studies
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| Wespoly™ reduces starch usage and wet-end costs. |
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| "Two West Coast linerboard mills experienced cost savings using Western Polymer Wespoly™ starches." |
"Two West Coast linerboard mills experienced cost savings using Western Polymer Wespoly™ starches." -Wespoly™ Case Studies WESTERN POLYMER CORP. |
Using Western Polymer's Wespoly™ engineered line of cationic potato starches, two West Coast linerboard mills were able to significantly reduce their usage of wet-end starch.
A large kraft linerboard mill switched to a Wespoly™ product in 2004 and has enjoyed a 20 to 30% reduction in wet-end starch usage. This mill also experienced an increase in production, lowering their unit costs while using less starch.
A second large kraft linerboard mill is saving approximately $100,000 per quarter by using Wespoly™ engineered starch in 2005. The savings are from an approximately 20% reduction in the usage of wet-end cationic starch.
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| Paper Mills Reduce Costs and Increase Profits with Wescote® |
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| "Wescote® starches have been used in many successful coating and size press applications, increasing paper quality for WPC customers." |
"Wescote® starches have been used in many successful coating and size press applications, increasing paper quality for WPC customers." -Wescote® Case Studies WESTERN POLYMER CORP. |
Using Wescote® starches manufactured by Western Polymer Corp, paper mills have increased the quality of their paper, decreased costs, and increased profits. Examples of successful coating uses of Wescote™ include:
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
In Size Press applications successful applications and trials include:
1. Competitive Binder 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
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The molecular weight of the potato amylose molecule is five times greater than that of corn.
A higher Molecular weight provides better bonding and lower retrogradation rates.
Enhanced bonding strength is the primary benefit of using potato starch over cornstarch.
In many applications, potato starch is the better choice!
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