HOT MELT ADHESIVE OPTIMIZATION

HOT MELT

ADHESIVE OPTIMIZATION

How to optimize ADHESIVE consumption

Is your company using more hot melt adhesive than they need to? .....

…..Let’s look at some issues common to adhesive application.

A B

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If the fibre tear of A is strong enough, why use B ?

How much extra adhesive is used by bead B ?

BA


If we start with the original glue bead…

… and then half the bead width, how much do we save ?

Reality is close to 4X½ the original bead


Why is it common to use too much adhesive ?

Often because we have blocked nozzles from system CHAR.

So …

We increase the size of nozzles1

=


Or ...

Because we increase the pump pressure

1.5 bar = = 0.45 g/m

2.0 bar = = 1.0 g/m = 122 %

2.5 bar = = 1.4 g/m = 211 %

3.0 bar = = 2.4 g/m = 433 %

3.5 bar = = 3.2 g/m = 611 %

NOTE: 1 Bar = 14.5psi

2

Pump visual of the glue bead % increase pressure with same nozzle size in adhesive consumption


Or ...

Due to bead misplacement and waste3

BEAD MISPLACEMENT ADHESIVE WASTE


LET’S STEP BACK AND REVIEW…

1. Where adhesives come from

2. What makes a hot melt adhesive

3. Adhesive technologies available today


Many raw materials are descendants of crude oil and natural gas…

Crude Oil Natural Gas

Light Oils Paraffins Cracking Process Butadiene Ethylene Methanol Propylene

HOT MELT HOT MELT HOT MELT LIQ & HM HOT MELT HOT MELT HOT MELT LIQUID LIQUID

Refined & Waxes Tackifying Plasticizers Tackifying Elastomer& EVA EVA Acrylic

Hydrogen Resins Resins Themoplastic Resins Emulsions Emulsions

Oils Rubbers PVOH & Resins

Tackifying Benzene Acetic Acrylic Alcohol Resin Acid Acid

Plasticizer Styrene VAM Acrylic Feedstream Esters

Feedstream


“Conventional” Carton Sealing Hot Melt Composition

3 Basic Raw Materials & Their Function

Polymer Strength & Flexibility

Tackifier Aggressiveness &

Ability to Bond Difficult Paper Stocks

Wax Speed of Set &

Viscosity

33%

33%

33%


Hot Melt Technology PlatformValue / Performance Grid…

“You have choices”…

Performance

Value

EVA

Metallocene

Polyethylene

Hybrid EVALow Temp.

EVA

Hybrid PE

As we move up the value / performance grid, what benefits do we achieve?...

1 350oF Exposure TestAdhesives that are more viscosity stable and resist charring. Both avoid having to increase nozzle size and change system pressure.


Image provided by H.B. Fuller


2 Adhesives that cut off cleanly rather than produce a “tailing” effect. Clean cut-off means less clean up, less downtime and less adhesive consumed.




3 The highest quality raw materials. This means less odor and less smoking as well as enhanced package appearance and brand image.

Traditional Premium

Technology comparison


Images provided by H.B. Fuller

The price per pound of adhesive is just the tip of the iceberg…

Maintenance Costs

Cost of Parts

Line downtime Costs

Cost of Low Mileage

Cost of Low Yield

Cost of Field Failures

Total Cost of Ownership

Adhesive Price / lb



As an adhesive user, you have the ability to…

• Achieve lowest total cost of ownership

Minimize internal and external costs. 10-40% savings are typical and achievable.

• Increase Mileage

10-35% mileage advantage is attained through lower density, thermal stability, precise application and aggressive bonding.

• Reduce Line and Maintenance Costs

Eliminate char. Less nozzle, module & hose replacements. Reduces line, tank and cleaning costs.

• Increase Plant Yield and Throughput

Reduced downtime and rejects. Fast speed of set yields maximum line speeds.


Data provided by H.B. Fuller

If you are interested in achieving the lowest total cost of

ownership in your hot melt adhesive systems…

Please contact Ellsworth Adhesives:

Call 1-800-888-0698 orChat with the Glue Doctor

We would be happy to provide a no charge:

• Initial audit

• Presentation of our findings

• Request an audit now – cost savings guaranteed!


HOT MELT ADHESIVE OPTIMIZATION

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