Microsphere water-based pressure sensitive adhesives ideal for high-quality sticky notes

This is a new product has performance of high peel strength and removability.
It is designed to stick firmly and prevent adhesive residue or damage to the adherend, contributing to higher quality sticky notes.

• Key points for making high-quality sticky notes
• What is the microsphere water-based pressure sensitive adhesives used for sticky notes?
• Features of new product BPW 6734
• Application

Key points for making high-quality sticky notes

Poor-quality sticky notes may have weak adhesive strength and peel off while being applied, or strong adhesive strength and may leave behind adhesive or cause damage to the adherend (tear paper) when removed.
In order to make high-quality sticky notes, it is important to select pressure sensitive adhesives firmly sticks to the adherend and has good removability.

What is the microsphere water-based pressure sensitive adhesives used for sticky notes?

Sticky notes generally use microscopic water-based pressure sensitive adhesives.
Microsphere pressure sensitive adhesives is made of binder resin and microspheres, and by reducing the contact area of the binder resin, the microspheres achieve both adhesive strength and removability.

General sticky note structure

Features of new product BPW 6734

Our microsphere design technology allows us to improve adhesive strength and maintain removability, which was previously difficult, and makes it possible to create high-quality sticky notes.

Improved adhesion with large particle size microspheres

If the particle size of the microspheres is small, the binder cannot fully cover the surface of the microspheres, resulting in a decrease in adhesive strength.
On the other hand, BPW 6734 uses microspheres with a large particle size, which increases the specific surface area of the binder, resulting in higher adhesive strength.

New product BPW 6734

The particle size of the microspheres is large and the specific surface area of the binder is large.
→High adhesive strength

regular quality sticky notes

The particle size of the microspheres is small and the specific surface area of the binder is small.
→ Adhesive strength decreases

Adhesion data

BPW 6734 not only exhibits high adhesive strength after one application, but also maintains its adhesive strength even after 50 applications.
Creates sticky notes that firmly adhere to the adherend and are difficult to peel off.
Regular quality sticky notes A had poor removability and the adherend broke, so the adhesive strength decreased after being pasted 50 times.

Ubiquitous presence of microspheres improves removability

If the distance between the microspheres is narrow and they aggregate, re-peelability will be poor, such as leaving adhesive residue and destroying the adherend.
On the other hand, BPW 6734 has wide spacing between microspheres, so it has good removability.

New product BPW 6734

・Large particle size
- Wide spacing between microspheres

Normal quality sticky note A

・Large particle size
・The microspheres are aggregated.

Normal quality sticky note B

・Small particle size
・The microspheres are aggregated.

Removability data

When observing the adherend after pasting 50 times, we found that with normal quality sticky notes, destruction of the adherend was observed when the adhesive strength was increased, but with BPW 6734, no adhesive residue or destruction of the adherend was observed.
Produces high-quality sticky notes that can be removed cleanly.

New product BPW 6734

Removability ✓

Normal quality product A

Removability ×
Peeling of the adherend can be seen

Normal quality product B

Removability ✓

Application

In addition to sticky notes, it can be used for a variety of other purposes such as protective films, masking tapes, and linerless labels.

Protective film

Masking tape

linerless label

There are no restrictions on the uses of pressure sensitive adhesives.
We look forward to exchanging opinions with everyone considering this in each field.