Shenzhen Chuangfeng Environmental Packaging Materials Co., Ltd. supplies printed tapes that feature excellent initial tack, holding power, and peel strength. These tapes meet a wide range of packaging and labeling requirements—offering high efficiency, convenience, and a secure bond—while being easy to tear without leaving adhesive residue. They are your ideal choice.
1. Initial Tack: Initial tack reflects the tape's immediate bonding capability the moment it makes contact with a substrate. It is typically measured using the steel ball number test; for instance, BOPP pressure-sensitive adhesive tapes used for carton sealing generally require a steel ball number of ≥10# (corresponding to a diameter of 11.11 mm). In express delivery packaging, when couriers need to seal cartons quickly, tape with good initial tack adheres instantly to the carton surface without requiring prolonged pressure, thereby boosting operational efficiency. Conversely, poor initial tack prevents the tape from adhering to the carton in a timely manner, causing inconvenience during the packaging process.
2. Holding Power (Cohesion): Holding power assesses the tape's ability to maintain its adhesive strength over an extended period after application. Typically, under a 1 kg load, the tape is required to remain suspended for ≥60 minutes. For applications requiring long-term fixation—such as temporary labeling on industrial equipment or the placement of warning signs at construction sites—printed tape with strong holding power ensures that the labels remain securely attached over a prolonged duration, thereby serving a continuous and effective warning function. Insufficient holding power may cause labels to detach prematurely, creating potential safety hazards.
3. Peel Strength: Peel strength indicates the amount of force required to peel the tape away from a substrate surface. For example, the 180° peel strength on a stainless steel plate is typically required to be ≥3.5 N/10 mm. In the context of printed labeling tapes, when a label needs to be replaced, a tape with appropriate peel strength ensures that the label remains firmly attached during use while allowing for clean removal without leaving adhesive residue on the substrate surface, thus keeping the surface clean. If the peel strength is excessively high, the label becomes difficult to remove and may even damage the substrate surface; conversely, if the peel strength is too low, the label may detach spontaneously and fail to meet operational requirements.
Thermal Aging Performance: Thermal aging performance simulates how the tape's properties change after being stored for an extended period in a high-temperature environment. Typically, it is required that the peel strength retention rate remains at or above 80% after being subjected to an environment of 70°C for 168 hours. In certain high-temperature storage environments—such as warehouses during the summer months when temperatures are elevated—printed tapes exhibiting excellent thermal aging resistance ensure that, even after prolonged storage at high temperatures, they retain sufficient adhesion without suffering from delamination or becoming brittle due to aging, thereby guaranteeing the stability of the packaging.
Low-Temperature Toughness: Low-temperature toughness pertains to a tape's performance characteristics when utilized in cold environments. Generally, the requirement is that the tape must be capable of being bent 180° around a 10mm-diameter mandrel at a temperature of -20°C without cracking. During the winter months in northern regions, outdoor temperatures encountered during logistics and transportation may plummet to below -20°C; under such conditions, printed tapes possessing superior low-temperature toughness will not become brittle and fracture during operations such as carton sealing or label application, thereby ensuring the smooth and uninterrupted execution of logistics packaging tasks.
