Existing domestic and foreign markets sold kraft tape has multiple categories, from the category of kraft tape can be divided into: self-adhesive kraft tape, wet kraft tape, hot melt (non-pressure-sensitive) kraft tape, layered kraft tape, kraft tape, film kraft tape, writable kraft tape and so on.
The most common on the market for self-adhesive kraft tape, wet kraft tape, hot melt (non-pressure-sensitive) kraft tape based on the color division of the general color kraft tape, white kraft tape, color kraft tape and printing kraft tape.
Self-adhesive kraft tape: self-adhesive kraft tape is currently the main hot melt adhesive type, natural rubber type, acrylic adhesive self-adhesive kraft tape. It is a little relative to the wet kraft tape for easy and convenient operation. Just tear to use. No need like wet kraft tape through the wet water machine or other equipment to add water immediately after use, convenient and efficient. At present, such as film kraft tape, writing kraft tape, layered kraft tape, self-adhesive kraft tape belongs to this heavy type.
Wet kraft tape: relative to the self-adhesive kraft tape, its cost is relatively low degradability is better, the viscosity is more stable, basically not affected by temperature or related external environment. The only disadvantage is the need to add water to it before it can be used, relatively speaking, the operation is relatively cumbersome.
Hot melt (non-pressure-sensitive) kraft tape: it belongs to a special kraft tape, at room temperature without any viscosity. It needs to be heated at high temperature to produce adhesion. The advantage is excellent adhesion, the disadvantage is the need for specialized heating equipment can be used. For heavy-duty packaging and other specialty needs there are greater advantages.
Kraft paper tape composition elements
Kraft paper tape is mainly kraft paper, PE laminating film, release agent and adhesive components, generally used 65g-80g imported whole wood pulp paper for laminating or release treatment, after coating adhesive made. Is the ordinary kraft paper, tensile strength second only to wired fiber wet kraft paper products. High tear strength, matte paper surface, clean surface without impurities, suitable for use in industries with high environmental requirements.
The paper substrate is generally divided into recycled kraft paper, half wood pulp kraft paper, pure wood pulp kraft paper, but also divided into domestic and imported paper and so on.
The use of kraft tape
The color of kraft tape is basically kraft paper color, because the rest of the carton color is close, so kraft tape is mainly used for sealing packaging. According to the different industries, kraft tape also has many special uses.
For example, the furniture industry use kraft tape for repair, wood industry need to use kraft tape on its lamination, industrial painting industry spray paint need to mask it, the electronics industry use kraft tape isolation or protection, etc..
What is ordinary kraft tape
Ordinary kraft paper is generally used in the matter of recycled paper or half-wood pulp paper, while coated with ordinary quality adhesive production and manufacturing. In order to pursue low cost and low sales price, the use of low-quality kraft paper raw materials and lower quality adhesive processing production.
Because of the relatively poor paper substrate and glue, for ordinary sealing objects light weight, small changes in ambient temperature, viscosity requirements are not high, short shelf life and color requirements of the use of the environment can choose to use.
Advantage is low price, the disadvantage is low strength, weak viscosity, short product effective period, easy to sealing packaging breakage, release problems, oil seepage, low viscosity or no viscosity and other situations and problems.
What is high quality kraft tape
For high-quality high quality kraft tape, the imported or domestic pure wood pulp kraft paper as the substrate. Most of them use high-strength pure wood pulp kraft paper, stretch kraft paper and even reinforced kraft paper as the production base material.
At the same time the glue used to carry out a variety of conditions and environmental testing to ensure that its glue initial adhesion, adhesion, high temperature environment, low temperature environment, expiration date, to prevent oil seepage, to prevent the problem of mold release, and so on.
High quality kraft tape has stable color, good tensile strength, no oil seepage at high temperature and no effectiveness, and can maintain the stability of the tape regardless of high and low temperatures.
At present, it is mainly used for all kinds of light and heavy environmental protection sealing packaging, such as: export product packaging sealing, domestic and foreign enterprises packaging, Europe and the United States and developed countries packaging use.