KR900006614B1 - Method to make partly metallising textiles by electroless electrochemical plating - Google Patents

Abstract

Method for producing textile fabrics partially matallised comprises (i) sensitizing textile fabrics consisting of thermoplastic synthetic polymer, (ii) partially printing with printing paste consisting, of palladium chloride solution and watersoluble thickening agent, (iii) removing the thickened matter by rinsing process, and (iv) non- electrolytic plating the printed parts of textile fabrics.

Description

Process for producing partially electroless metallized fiber cloth

The present invention relates to a method for producing a metallized fiber pouch which is partially electroless plated with a fiber pouch composed of thermoplastic synthetic polymer.

Conventional methods include partially inactivating the fiber cloth and then plating it, and inactivating the preliminary stamp on the fiber bag using a special dye diffused by heat. First of all, after partial inactivation treatment, it is necessary to activate the parts other than the inactivated by post-treatment again. It doesn't work. Moreover, also in the inactivated part, there exists a fault which is difficult to prevent metal precipitation completely. The present inventors have been developing a partial activation method that can improve the conventional problems while studying a method that can solve all the above problems.

In other words, the present invention is a continuous chuck after carrying out the normal degreasing, weight loss and water repellent process (PdCl ₂ , 2H ₂ O) and water-soluble lake of fiber cloth made of thermoplastic synthetic polymer It is a zero-printed foil for printing, incineration, drying, hot water removal, activating partially, followed by ordinary electroless plating. Hereinafter, the present invention will be described in more detail, and refined fiber cloth is completely degreased and reduced in a sodium hydroxide (NaOH) 40g / 1,100 ° C. reduction bath to form fine irregularities on the fiber, and then 10 g of tin tin (SnCl ₂ ) and hydrochloric acid. After immersion for several minutes in a water quenching bath containing 40 cc of water and 1000 cc of water, and then uniformly depleting Sn ++ ions in the fiber, the aqueous solution of parachloric chloride is mixed with an aqueous solution of a water soluble agent, and the viscosity is 5000 to 20000. After making a Pois printing foil, it is inlaid on the fiber cloth and dried, and then degreased by hot water. In this way, when partially activated fiber cloth is continuously immersed in a conventional electroless Ni and Cu plating bath, only the edge portion is plated.

The fibers of the present invention include synthetic fibers or semi-synthetic fibers, some natural fibers and glass fibers, and these forms are preferably partially plated such as woven fabrics, knitted fabrics, and nonwoven fabrics. In addition, in the composition of the printing agent for printing, the salt solution of the palladium aqueous solution is about 0.59 of salt trapping parametic, 5 cc of hydrochloric acid, and about 6000 cc of water, and 100 to 500 g of a water soluble inhibitor is added. As the water soluble inhibitor, a conventional printing agent such as cellulose, starch system, rubber system or synthetic agent can be used. In particular, sodium alginate having good compatibility and easy talc is preferable. After the printing, drying is usually performed for 2 to 4 minutes in the range of 120 ° C. to 160 ° C., followed by rinsing at about 80 ° C. for 5 to 10 minutes to remove the mist. It is advantageous in terms of the safety of the plating solution to plate in the dried state of the forge. As the plating bath, electroless Ni and Cu baths are used. If the forged edge is immersed in the plating bath in a expanded state for 3 to 10 minutes, only the portion where the edge is stamped can be plated. After plating, the discoloration inhibitor is treated for durability and prevention of oxidation discoloration of the precipitated source Ni and Cu films, or immersed and padded in a water-soluble resin solution composed of a soft acrylic resin.

According to the present invention, the partial plating on the fiber cloth has the following advantages over the conventional method: 1) The manufacturing process is easy and the manufacturing cost is low by activating only the necessary parts by manufacturing the printing arc. 2) Inactivation It is possible to prevent contamination and dropping of the damaged parts, and to partially plate the edges cleanly and uniformly. 3) Metal precipitation is completely prevented in the inactivated parts, thereby completely eliminating partial plating in inactive parts. have.

Metallized fiber forge prepared by the present invention can be widely used for special gastric membrane that can effectively absorb or reflect the electromagnetic shielding material, shielding clothing, antistatic material and radar wave.

Hereinafter, the present invention will be described with reference to the following Examples.

Example 1

The plain weave was woven from polyester 75D / 72f with 200T / M twist, and then reduced for 40 minutes at NaOH 40g / 1,100 ℃, then immersed in a sensitive bath for 3 minutes, dried at 120 ℃ for 2 minutes, and then printed. As a result of printing using a conventional printing method, drying at 120 ° C. for 2 minutes, followed by hot water at 80 ° C. for 10 minutes to remove the arc, followed by rolling, immersing for 5 minutes at 55 ° C. in an electroless Ni bath to perform plating. After thoroughly washing with water, it is immersed in an acrylic resin composition pad and padded (pickup rate: 80%) and dried. The composition of the above-mentioned sensitivity bath, printing bath, electroless Ni bath and padding resin composition is shown in Table 1 below.

TABLE 1

(Example 2)

Same as in Example 1 After scouring and degreasing, the paper was immersed in a precipitation bath, continuously dried in a fiber cloth with a printing foil, and then removed by the hot water, and then immersed in a conventional electroless Cu plating bath (Table 2). After immersion for 10 minutes at ℃, it was immersed in acrylic resin solution, padded and dried.

TABLE 2

According to the above embodiment, the metal plated part was not only contaminated and eliminated in the inactivated part but also completely prevented metal deposit and was partially and cleanly plated only on the part stamped with the printing foil.

Claims (1)

After degreasing and weight-reducing raw fiber cloth with thermoplastic synthetic polymer material, it is treated in a water-reducing bath, and then partially dried with a printing arc composed of an aqueous palladium chloride solution and a water-soluble agent, followed by drying with hot water. (Iii) a method of producing partially electroless metallized fiber cloth which is partially activated and then subjected to conventional electroless plating.