JPH04263666A - Method for mercerization processing of sash padding - Google Patents

Abstract

PURPOSE:To impart silky pliability, elegant luster and silk scrooping properties to a sash padding without causing deterioration in strength by napping the sash padding, sizing the napped sash padding and then subjecting the resultant sash padding to hot-calendering treatment and further mercerization processing. CONSTITUTION:A sash padding is subjected to napping processing and then dipped in a processing agent prepared by emulsifying a paraffinic size with a polyethylenic nonionic surfactant and subsequently dried. The resultant sash padding is then subjected to hot-pressing treatment with calender rolls and further to mercerization processing.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mercerizing a band core, which is characterized by applying a new mercerization process to the band core.

0002

[Prior Art] The conventional method of mercerizing cotton fabric involves treating the cotton fabric under tension with a concentrated solution of caustic soda to give it a kind of silk-like luster and to improve its tensile strength and adsorption of hygroscopic materials. is well known. About mercerization 1 Principle of mercerization Mercerization utilizes the phenomenon in which cotton fibers swell with concentrated alkali and change from a flat cross section to a circular cross section. As the cross section becomes rounder, the luster of the fiber becomes similar to silk. The name mercerette also comes from the word silk. Caustic soda or liquid ammonia is used as alkali. Caustic potash is not used because it is expensive. Change in state of cotton fibers due to NaOH Concentration of NaOH Change in state 0...6% No change 6...8 Untwisted in 1 second, albeit incompletely 9
Start early and then slowly untwist 12 Untwist rapidly in 5 seconds 16 Swell after untwisting 18
Untwists and swells at the same time 27...36
Swells before untwisting 2 Mercerizing method Cotton thread or cotton cloth is soaked in concentrated alkali, tensioned and washed with water. Mercerizing results vary depending on the concentration and penetration of the alkali and the tension placed on the fibers. It used to be said that a temperature of 10 degrees Celsius or less was good, but now there is no longer a need for temperature. 3 Mercerizing equipment Skein mercerizing machine - Automatic skein mercerizing machine Warp mercerizing machine Winding type mercerizing machine (batch type mercerizing machine) Dry type mercerizing machine Chainless mercerizing machine (bend bar type and multi-cylinder type) Clip chain type mercerizing machine Maru Knitted stockinette mercerizer 4 Mercerizing effect 1) Improvement in gloss 2) Change in shrinkage rate and tensile strength 3) Increase in dyeing rate 4) Moisture absorption amount (no tension, previous table) and change in water absorption amount Unprocessed
6.
Processed with 1% 8% NaOH 7.7
Processed with 16% NaOH 10.724
Processed with % NaOH 11. Processed with 340% NaOH 12.15) Improved chemical reactivity (improves processing effect in resin processing and other various processes) 5 Test method for mercerized cotton 1) Moisture absorption amount, dyeing amount Or measurement of barium adsorption amount 2
) Measurement of degree of coloring with iodine/iodpotash or iodine/zinc chloride solution

0003

[Problems to be Solved by the Invention] This conventional mercerizing method has the drawback that the process is long and mercerizing cannot be performed at low cost.

[0004] Up until now, obi cores have not been mercerized because they are placed inside the obi, but recently silk and wool obi obi belts have become available, and the requirements for the texture of the core have become stricter. .

[0005]

[Means for Solving the Problems] The present invention has been made to solve the above problems, and is constructed as follows. That is, the mercerizing method of the band core of the present invention involves raising the band core, applying a glue treatment, then immersing the band core in an emulsion-type finishing agent, drying it in a drier, and then heating it in a calendar. It is characterized by pressurized mercerization. Next, this invention will be described in detail with reference to Examples below.

[0006]

[Example] First, the core of the band is raised to make it fluffy. At this time, it is good to raise the hair about once. Next, glue processing is performed in the following manner. Glue processing 1 time/Polysol S-5 (vinyl acetate resin) 2/1
00 ■ - (Good stability) (High adhesive strength) - Softex AK-2D (softener) 1/2 ■
/ 100 ■ - Petrox P200 3 ■ / 100 ■ - Water-repellent resin finishing agent (strong anti-deterioration) Once the belt core has been glued as described above, it is dried in a dryer. Then, the core of the band is further finished by calendering. Calendar pressure is 300K
If the pressure is less than g, it is not suitable for creating the silk texture described above, and if the pressure is too high, the fabric becomes flat and stiff, becoming paper-like. Therefore, the pressure of the calender is 600 kg, which is characterized by crushing the fabric, appropriately softening the fabric, and fluffing the surface. Among the above steps, particularly important factors in the present invention are gluing and calendering.

[0007]

[Effects of the Invention] As mentioned above, the glue processing of this invention mainly contains paraffinic ingredients, and is made into an emulsion using a polyethylene nonionic activator.
Because it is an oily, drainable, and non-ionic emulsion, it can withstand long-term use and storage. Also, with general resin processing, the strength decreases, but because of the resin processing mentioned above, the wax acts to prevent the strength from deteriorating. Therefore, the finished obi core has an elegant luster and has the suppleness of silk. Moreover, the dyed product has good dust absorption properties, and has a characteristic that the absorption property is 40% higher than that of conventional products. Furthermore, it has a supple texture and moderate wrinkle resistance, making it ideal for obi cores. It also has excellent economic efficiency as the process can be completed easily and at low cost.

Claims (1)

[Claims] A band core characterized in that the band core is brushed and pasted, then the band core is immersed in an emulsion-type processing agent, dried in a dryer, and then mercerized by heating and pressing in a calendar. mercerization method.