The Real Factors That Affect the Heating Sensation of Capsicum Plaster — Analysis from a Professional Capsicum Plaster Manufacturer

Why Do Some Capsicum Plasters on the Market Feel Hot While Others Do Not?  A Leading Chinese Capsicum Plaster Manufacturer Explains the Real Reasons

1. The Influence of the Fabric

The type of backing fabric is a factor that end users hardly ever notice, but it is extremely critical from a manufacturing perspective. Different materials transfer and release heat in completely different ways.

Cotton fabric contains a large amount of natural fibers that can absorb the capsicum extract. When the capsicum plaster is applied to the skin, the absorbed capsicum extract is released gradually, allowing the heat to last for a longer time—typically 6 to 8 hours.

Non-woven fabric, on the other hand, is made of polyester and cannot absorb much capsicum extract. The capsicum extract mainly stays in the adhesive layer. As a result, non-woven capsicum plasters release heat more quickly, but the heat duration is shorter, usually around 4 to 6 hours.

This is exactly why experienced buyers in the industry tend to prefer cotton-based capsicum plasters.

2. The Influence of the Coating Method

When producing porous capsicum plasters, we use two different adhesive coating methods: direct coating and transfer coating.

Direct coating means that the adhesive is applied directly onto the fabric. In this way, the adhesive penetrates into the micro-pores of the fabric fibers, which allows the fabric to absorb more capsicum extract.

Transfer coating means that the adhesive is first coated onto the release paper, and then the release paper is laminated together with the fabric, so that the adhesive is transferred onto the fabric. With this method, more capsicum extract remains in the adhesive layer.

As a result, transfer-coated capsicum plasters release heat more quickly, but the heating duration is shorter.

Why Are There Two Methods: Direct Coating and Transfer Coating?

Direct coating is suitable when the adhesive coating weight is around 80 g/m². When the adhesive weight increases to around 110 g/m², the adhesive becomes too thick, which can easily lead to uneven coating. In this case, transfer coating is required instead.

If you are looking for a capsicum plaster with stable and long-lasting heating performance, our engineering team at Guanma is ready to support you.
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3. The Influence of Adhesive Quality

Most people may think that the adhesive only affects the bonding strength, but in fact, it also has a significant influence on the heat release of capsicum plaster.

High-quality adhesive allows the capsicum extract to be distributed evenly, which prevents localized overheating on the porous capsicum plaster. As a result, the heating sensation is released in a more uniform and stable manner.

4. The Influence of Storage

Storage conditions and product freshness also have a direct impact on the heating performance of capsicum plaster. Capsaicin is relatively sensitive to high temperature, long storage time, and poor packaging sealing.

Even if a capsicum plaster looks normal on the outside and still has good adhesion, if it has been stored for too long, its heating intensity may decrease by 30% to 50%. This is why freshly produced capsicum plasters often feel much hotter, while older stock products, even with the same formula, show a noticeably weaker heating sensation.

In the final analysis, the heat release of capsicum plaster is affected by the backing material, adhesive quality, production process, and storage conditions.

If you are looking for a manufacturer that is truly professional in producing capsicum plaster, please keep an eye on Guanma. Guanma specializes in the professional manufacturing of capsicum plaster with stable heat release, strict quality control, and OEM/ODM support.