Way to Reduce Stretch Film Consumption in Pallet Fixing: Anti-Slip Stacking with Anti-Slip PSA Hotmelt

Sudden braking of trucks in storage, logistics and shipping operations, overturning of pallets during cornering or forklift transportation ; It results in broken products, delayed orders and high packaging waste costs. To eliminate this risk, production facilities wrap meters of thick plastic stretch film per pallet, which both increases packaging costs and hits global sustainability targets.

Anti-slip pallet fixing hotmelt glues turn pallets into a whole block, thanks to a small adhesive strip applied to the upper surface of boxes and sacks in packaging lines. Mayer Glue technology, developed by Koçak Endüstri, dramatically reduces plastic consumption in palletizing lines and offers zero fiber tear assurance.

Pallet tipping and plastic stretch cost in logistics

A pallet full of cement, flour, chemical raw material sacks or food parcels is subjected to horizontal acceleration during transportation. When the sacks slide over each other, the center of gravity shifts and the pallet topples. Relying on stretch film alone cannot fully stop the shifting of the lower layers of the load. Additionally, the use of hundreds of layers of stretch film causes the end user to cut the product packaging with a knife when opening the pallet, resulting in the accumulation of non-recyclable plastic garbage.

Anti-slip PSA working principle: Slip etc. tensile strength

The success of anti-slip hotmelt glue is based on clever polymer engineering. These adhesives manage two opposing mechanical forces simultaneously:

• High Shear Strength: Glue shows an enormous coefficient of friction and adhesion against horizontal forces. When the pallet is shaken left and right, the boxes cannot slide even a millimeter from each other.
• Low Peel Strength: When the glue is pulled on the vertical axis, it separates with a very low resistance. When a parcel or sack is lifted upwards, the adhesive separates from the surface like pulling hair from butter.

Re-positionable formula: Why does it not tear the packaging fibre?

Standard packaging glues (EVA box glue) penetrate between the paper fibers and tear the paper. In pallet fixing, tearing the packaging is unacceptable; Because the torn parcel is visually perceived as damaged, and the sack explodes, causing raw material to spill.

Special formulations based on metallocene polyolefin (mPO) and PSA create an elastic anti-slip buffer layer on the surface. It adheres to the fibers without breaking them and has a "re-positionable" structure; It maintains its anti-slip effect even when the parcel taken from the pallet is placed again.

Comparison of plastic stretch film and anti-slip hotmelt

Nozzle and gun installation on automatic palletizing line

Anti-slip glue application is done with a compact hot glue unit integrated into the line just before the robotic palletizing cell or conveyor belt:

1. Conveyor Sensor: While the parcel or bag passes through the belt, the photocell sensor sends a trigger signal to the applicator gun.
2. Clean Line/Spot Spraying: Glue nozzle deposits fine bead or spiral spray in 2 to 4 strips onto the wrapper.
3. Robotic Stacking: As soon as the palletizing robot puts the box on the pallet and presses it, the anti-slip locking is activated instantly.

Sustainable logistics with Mayer MT-PSA 340 SlipStop

Mayer MT-PSA 340 SlipStop (mPO PSA), newly added to Koçak Endüstri portfolio, provides fully controlled anti-slip properties in kraft bags, PE sacks and parcels with an application temperature of 160–180°C and a viscosity of 4,700 ± 500 mPa·s. Thanks to its high thermal stability, it does not cause nozzle clogging and does not emit odor.

Stock and technical sample support

You can contact Koçak Endüstri Sales and Technical Team to reduce stretch film consumption in your palletizing line, to eliminate product damage and to test our MT-PSA 340 SlipStop product in your production line.