Permanent paper label

Pressure-sensitive adhesives based on acrylic polymers grew 3.5-fold in the last dozen years. The acrylics are mostly emulsions and solutions, plus small quantities of radiation-curable systems. In tapes, acrylic adhesives are applied mainly to non-paper substrates such as polypropylene, acetate, cellophane, and polyester. In labels, acrylics are used for making permanent paper labels and plastic labels. 

Acrylic permanent paper label (resin tackified)... 

Self-Adhesive or Pressure-Sensitive Labels. It is preferable to call these pressure-sensitive labels, as both the pregummed and heat-sensitive labels are self-adhesive (i.e., the adhesive is already there). They consist of a suitable label facing material (usually paper or polymer), the reverse side of which is coated with a permanently tacky adhesive that is in contact with a backing paper (occasionally plastic) that protects it prior to use. The backing paper is coated with a special release coating that permits the label to be removed easily. Labels may be provided on roll or sheet form both can have the label laid on that is, the unprinted area has been cut and removed. 

Cut filter membranes to 22 X 23 cm and treat according to the vendor s instruction. Generally, filters are labeled in permanent ink with the KP number, A vector used, and the name of target species. First, soak filters in distilled water followed by soaking in a solution of 1 MNaCl. Blot the filters dry on Whatman 3MM paper to remove excess moisture just prior to use. 

Pressure-sensitive adhesives are used for labelling applications. They are permanently tacky and adhere to the surface of the desired substrate under pressure. A paper or plastic film label is coated with a pressure-sensitive adhesive and applied to a backing layer - usually siliconised paper from which the label can be removed easily. The labels are then printed and sent... 

Pressure-sensitive adhesives are the essential components of adhesive tapes and labels. They are polymers with permanent tack, usually applied on substrates (plastic/metal films, siliconized papers). To enhance their tack, compounds with high inherent tack are added, for example, resins, plasticizers. Pressure-sensitive adhesives reach their adhesion on the material to be bonded by contact pressure, from which the term pressure-sensitive adhesive (PSA) derives. Apart from electron radiation, also UV-radiation curing described in Section 4.3.2 is applied in adhesive tape manufacturing. The monomer molecules to be polymerized are applied, in liquid form, to the substrates to be coated by rolling and are continuously cured to a polymer layer within seconds under a UV-radiation source. Depending on their composition, predetermined adhesion values can be adjusted. The adhesive tapes can be subsumed under the systems shown in Figure 5.4 ... 

Depending on the formulation, permanent pressure-sensitive adhesives (e.g., for car tax vignettes, price-labels) or removable pressure-sensitive adhesives are available. In the past, so-called repositionable pressure-sensitive adhesives have gained special importance, which are mainly applied to papers used as multiadhesive memo sheets. 

Is it to be label, a specially designed sealed carton or perhaps watermarked paper or board, chemically marked paper or board security inks, holograms etc. In a large proportion of the potential methods of protection you will need to ensure that the device, print, etc. actually permanently adheres to the substrate. 

These organic solvent-based adhesives are very easy to apply and find wide application in general industry. Whenever a variety of different materials has to be stuck together quickly and easily, organic solvent-based adhesives will often be the answer. The footwear industry uses them for sticking soles to uppers and many other operations. The automotive industry uses them for stick-on trim and a variety of other jobs. Foam-seat manufacturers use these adhesives in brushable and sprayable form. Paper converters employ solvent-based permanently tacky adhesives in the manufacture of labels and sticky tapes. 

Peel-and-stick labels provide a quick and easy way to apply labels to almost any surface. Die cut and supplied on release papers, they can be printed in computers for addresses, while preprinted labels for an enormous range of applications, particularly difficult substrates such as polyolefins or cold, moist containers make labeling a pleasure compared with traditional wet-applied systems such as dextrines or caseins. Pressure-sensitive label stock provides reliable bonding, is easy to use and virtually instantaneous, and offers a choice of properties, including permanence or easy removal, high-temperature resistance, or low-temperature flexibility. Large or small labels can be easily stored and handled, and applied by hand, hand-held applicators, or semiautomatic or fully automatic industrial labelers. 

Table 13 gives an example which might be considered as a permanent label adhesive. The substrate in this example is Lusterkote label stock. The paper tear observed during the 180 peel test is an indication of the permanency one could expect from the formulation. The shear adhesion of this formulation is not extremely high, but it is as high as some commercial labels we have tested in the lab. 

The label is an important part of the pharmaceutical product. The most common label used within the European pharmacy is the self-adhesive label. This consists of a laminate of two special types of paper the carrier material and the label paper. The carrier material consists of paper on which a silicon layer is fixed. The label paper can be printed on the printing side and on the carrier side it has an adhesive layer. The adhesive is usually of the permanent type, rendering the label non-removable once applied [25]. Label adhesives on plastic containers such as infusion bags require additional attention, see Sect. 24.4.13. 

Labels. Labels typically have a paper backing, but film backed labels are becoming more common. Labels can be both permanent or repositionable, and water dispersible PSAs are used for compatibility with recycling operations. 

Pressure-sensitive adhesives are permanently tacky substances that adhere spontaneously to the surfaces of most materials with only light pressure [36]. Their adhesiveness is relatively nonspecific, although the individual products show different adhesion values on different substrates. Pressure-sensitive adhesives are used mostly for coating supports, for example, paper and film tapes, adhesive labels, or self-adhesive decorative sheeting. The adhesives are applied to the supports as solutions, dispersions, or melts. After the adhesive has set, the pressure-sensitive adhesive is present as a thin film on the support and, until it is used, is covered by suitable antiadhesively finished materials, for example silicone paper or siliconized polyethylene film. In some cases, the pressure-sensitive adhesive is also applied to the masking material, and the film of... 

ASTM tests for durability of paper bonding adhesives. D-1581. Test Method for Bonding Permanency of Water-or Solvent-Soluble Liquid Adhesives for Labeling Glass Bottles. ... 

Manufacture of label stock, the precursor assembly of backing or facestock, adhesive, and release paper prior to printing and die cutting, is similar to tape manufacture, but the properties desirable for the facestock include print-ability as a major consideration. Labels earlier were classified as permanent, removable, or freezer types but in terms of applications are usually categorized as industrial, data processing, or office retail. 

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