English name: anti-counterfeiting fiber mbth: basic introduction, use, classification, common colored staple fiber, invisible staple fiber, dual-wavelength fluorescent staple fiber, colored fluorescent staple fiber, colored fluorescent dual-wavelength fiber, visible monochromatic fiber, invisible monochromatic fluorescent fiber and monochromatic fiber, which are divided into three categories:
(1) Visible staple fiber: also known as colored staple fiber, visible in natural light with random color;
(2) Invisible staple fiber: also known as invisible staple fiber and fluorescent staple fiber, which emits various colors of fluorescence under the irradiation of ultraviolet lamp;
(3) Chromatographic staple fiber, composite staple fiber, irregular staple fiber and multicolor DNA chromatographic anti-counterfeiting staple fiber: multiple anti-counterfeiting functions are integrated into one fiber, and color combination, color segment length and fiber shape can be customized according to customer requirements. Anti-counterfeiting fiber (anti-counterfeiting fiber, anti-cloning fiber, authentication fiber, tracking fiber, anti-theft fiber, traceability fiber and safety fiber): the fiber length is 1 mm and 10 mm, and the diameter is 20 microns and 100 microns. There are three main types of fibers: 1, and visible safety fibers (such as red, green and blue, also known as visible fibers). 2. Invisible anti-counterfeiting fiber (also called colorless ultraviolet fluorescent anti-counterfeiting fiber), which can emit fluorescence (such as red, green and blue) under ultraviolet irradiation. 3, composite fiber: a fiber has a variety of anti-counterfeiting features, can be customized according to customer requirements. Objective paper is the material basis for printing all kinds of packaging. Special paper made by some special processes has anti-counterfeiting characteristics, and one of the anti-counterfeiting technologies used in special paper is anti-counterfeiting short fiber. There are two ways to use anti-counterfeiting staple fiber. One is to mix red, blue, green and brown staple fibers and various fluorescent staple fibers into the pulp when making paper. The other is that anti-counterfeiting short fibers are sprinkled on the surface of the paper before the paper is set or after gluing, which will produce different colored light or fluorescence reflection effects under the irradiation of natural light or ultraviolet lamp. Paper is usually used to make the packaging of products. Sometimes packaging paper needs to add some anti-counterfeiting functions. Adding anti-counterfeiting fibers to pulp is an effective method to make anti-counterfeiting paper, and another method is to distribute fibers on the surface of paper covered with glue. Packages made of paper with anti-counterfeiting fibers are difficult to forge. Classification of common colored staple fibers This fiber can be used to make anti-counterfeiting paper. Fibers are colored (red, blue, green, etc.). ). After mixing with paper pulp, colored fibers are randomly distributed in the paper under natural light, and the fibers can be picked out with a needle. Colored security fibers: colored (such as red, green and blue) fibers can be added to paper pulp to make security paper. When they are distributed in paper, they can be found in natural light. You can use needles to extract fibers from paper. Invisible staple fiber, also known as invisible staple fiber and fluorescent staple fiber, can be used to make anti-counterfeiting paper. This fiber is almost white in natural light. After fiber is mixed with pulp, it is invisible in natural light. Under the irradiation of ultraviolet lamp, randomly distributed fibers in paper can emit fluorescence (red, blue, green, etc. ), and the fiber can be picked out with a needle. Invisible fluorescent anti-counterfeiting fiber (also called colorless ultraviolet fluorescent anti-counterfeiting fiber): This fiber can be added to paper pulp to make anti-counterfeiting paper. They are colorless (white) in natural light. When they are distributed on white paper, they are invisible in natural light, but they will fluoresce (such as red, green and blue) under ultraviolet light. You can use needles to extract fibers from paper. Dual-wavelength fluorescent staple fiber can be used to make anti-counterfeiting paper. Fiber is almost white in natural light, but it is invisible in natural light when mixed with pulp. When irradiated with a long-wave ultraviolet lamp, you can see that the fibers randomly distributed in the paper emit fluorescence of one color (such as red), and when irradiated with a short-wave ultraviolet lamp, the fibers emit fluorescence of another color (such as green), and the fibers can be picked out with a needle. Dual-wavelength fluorescent security fiber: This fiber can be added to paper pulp to make security paper. They are colorless (white) in natural light. When they are distributed on white paper, they are invisible in natural light, fluoresce under long-wave ultraviolet light (such as red), and fluoresce under short-wave ultraviolet light (another color such as green). You can use needles to extract fibers from paper. Colored fluorescent staple fiber can be used to make anti-counterfeiting paper. Fibers are colored. After being mixed with pulp to make paper, colored fibers are randomly distributed in the paper under natural light. When irradiated by ultraviolet lamp, you can see that the randomly distributed fibers in the paper emit fluorescence (red, blue, green, etc. ), and the fiber can be picked out with a needle. Color fluorescent anti-counterfeiting fiber: this fiber can be added to paper pulp to make anti-counterfeiting paper. When they are distributed in paper, they can be found in natural light and fluoresce (such as red, green and blue) under ultraviolet light. You can use needles to extract fibers from paper. Color fluorescent dual-wavelength fiber can be used to make anti-counterfeiting paper. Fibers are colored. After being mixed with pulp to make paper, colored fibers are randomly distributed in the paper under natural light. When irradiated by a long-wave ultraviolet lamp, you can see that the randomly distributed fibers in the paper emit monochromatic fluorescence (such as red). When irradiated by a short-wave ultraviolet lamp, the fiber emits another color of fluorescence (such as green), and the fiber can be picked out with a needle. Colored dual-wavelength fluorescent anti-counterfeiting fiber: this fiber can be added to paper pulp to make anti-counterfeiting paper. When they are distributed in paper, they can be found in natural light. They fluoresce in long-wave ultraviolet light (such as red) and in short-wave ultraviolet light (another color such as green). You can use needles to extract fibers from paper. It can be seen that a single two-color fiber can be used to make anti-counterfeiting paper. Fibers are colored. When it is mixed with pulp to make paper, we can see that the colored fibers in the paper are randomly distributed, and there are two combinations of red and blue segments on the same fiber, so the fiber can be picked out with a needle. Two-color anti-counterfeiting fiber: fiber can be mixed into pulp to make anti-counterfeiting paper. When they are distributed on paper, they can be found in natural light. There are different colors on the optical fiber, such as "blue and red", and the two ends of the optical fiber are O colors. You can use needles to extract fibers from paper. A single trichromatic fluorescent fiber is invisible. The fiber can be used to make anti-counterfeiting paper. This fiber is almost white in natural light. After being mixed with pulp to make paper, the fiber is invisible in natural light. Under the irradiation of ultraviolet lamp, fibers randomly distributed in paper will emit fluorescence. The same fiber has a combination of three fluorescent fragments, such as "red-blue-green", and the fiber can be picked out with a needle. Invisible three-color fluorescent anti-counterfeiting fiber: this fiber can be added to paper pulp to make anti-counterfeiting paper. They are colorless (white), and when they are distributed on white paper, they are invisible in natural light, but fluoresce under long-wave ultraviolet light. There are three different colors on a fiber, such as "red, green and blue", which are arranged in the same order. You can use needles to extract fibers from paper. Single multicolor fiber is also called chromatographic fiber and multicolor DNA chromatographic anti-counterfeiting staple fiber. Such as a single dichroic fiber, a single trichromatic fluorescent fiber, etc. Fiber contains many colors and different color segments are arranged at certain intervals. Each color can be visible to the naked eye or excited by ultraviolet fluorescence, and can be customized according to the color combination specified by customers, so that the packaging of end products is unique and unrepeatable, and good anti-counterfeiting effect is achieved. The fiber is used to make anti-counterfeiting paper, which can effectively prevent counterfeiters from counterfeiting the visual effects of ordinary colored fibers and single monochromatic fluorescent fibers by printing thin lines. Because the printing color registration is difficult to be accurate to micron level, counterfeiters can't imitate the anti-counterfeiting paper with this fiber by printing thin lines, which solves the shortcoming of single monochromatic fiber. Consumers can distinguish it in the following two ways: a. Tear the paper or pick out the fiber with a needle and observe it directly. Each fiber has many colors. B, there will be no dislocation at the junction of two color segments. If there is any dislocation, it can be judged as counterfeiting. Multicolor anti-counterfeiting fiber: it can be added to paper pulp to make anti-counterfeiting paper. A fiber has more than one color or one anti-counterfeiting feature, which can be customized according to customer's requirements. Color and its grade are the specific characteristics of product packaging made of safety fiber paper. Some people print short lines on paper to forge safety fibers. But using the following methods, it is easy to distinguish the multi-color safety fibers in paper from the short lines printed on paper: a. Tear the paper with a needle or extract the fibers from the paper, and there are 0 (or more) colors on the fibers. B. Observe the connection of O color in the short lines (or fibers) on the paper. There are no dislocations or breakpoints on the fibers, but the printed short lines are different, because the printing technology level is not enough to make prints with such a high aperture value.