SU438199A1 - Method of finishing polymeric materials - Google Patents

Description

The invention relates to a method for finishing polymeric materials using electron irradiation. There is a method of finishing polymeric materials by local irradiation with a uniform electron flow, followed by treatment with reactive compounds. The disadvantage of this method is the difficulty of its implementation. In order to simplify the finishing process, the material is proposed to be locally irradiated with an electron flow controlled by a magnetic and / or electric field created by ferromagnetic elements and / or conductors with a configuration in accordance with a zadinol pattern. As ferromagnetic elements use a cylindrical magnet and / or steel balls, and / or magnetic plates, which are placed on the irradiated material. Conductors, which are predominantly metal rods through which electric current is passed, are placed under or above the material being irradiated. The proposed method is illustrated in Figures 1 and 2. Example 1. Cylindrical magnets are placed on the circulating conveyor belt located under the radiation source of the electron accelerator. . The electron beams are deflected in the direction of the magnetic field and are sent to the warp, a jersey made of polyamide lye, which rotates synchronously with the tape with the magnets on it. The irradiated knit is then treated with a 20% acrylamide solution, resulting in an increase in the amount of acrylamide at the site of irradiation, which in turn leads to structural changes. Example 2. To the magnets of example 1, steel balls are added to the circulating tape. The processing of the material is carried out according to Example 1, Ex. 3. Magnetic tiles, having a square, circular or other shape, are placed on the polyamide core jersey before irradiation. In the subsequent processing of example 1 receive a cruciform or other patterns. Example 4. On the circulating tape 1 (see Fig. 1), metallic transversal straps 2 are mounted at a certain distance from each other, which synchronously move with the fabric under the radiation source. The rods 2 (see Fig. 2) are electrically connected to each other. The electrons emanating from the accelerator with an energy of 0.5 mEV at a current of 50 A are deflected by a magnetic field arising around rods spaced 30 mm from each other to form a trajectory with an average radius of curvature 70 mm, so that, due to the opposite direction of the current, the electrons fall onto the fabric in strips, and after the further processing in Example 1, the result is achieved with the desired structural effect. Two diodes 3 direct the current only through the upper rods between the contacts 4. By adjusting the current, it is possible to regulate the width of the irradiated strip within wide limits.

Claims (3)

Sri.1 994 Claim 1. Inventory of polymeric materials by local irradiation with uniform electron flow followed by treatment with reactive compounds, characterized in that, in order to simplify the finishing process, the material is locally irradiated with electron flux controlled by a magnetic and / or electric field created by ferromagnetic elements and / or conductors with a configuration in accordance with a given pattern. 2. Method POP1, characterized in that cylindrical magnets and / or steel balls and / or magnetic plates are placed on the irradiated material as ferromagnetic elements. 3. The method according to claim 1, characterized in that metal rods are installed as conductors under or above the irradiated material, through which electric current is passed. 0