JPS6017175A - Treatment of molded polyester article - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating polyester molded articles, and more specifically, polyesters, typified by polyethylene terephthalate, are made durable by combining a specific parent wood treatment and an alkali treatment. Because it has many excellent properties, it has an extremely wide range of uses as films, textile products, etc. However, especially when worn as clothing, it has disadvantages such as not being water absorbent and easily coming off when sweating, being difficult to remove dirt, being easily recontaminated, and being easily charged with electricity and causing electric shock and attracting dust. have.

Conventionally, various attempts have been made to make the surface of polyester molded products hydrophilic in order to solve these drawbacks.

In other words, many processing methods have been devised to form a hydrophilic film on the surface of a molded product, but the resulting antistatic, sweat absorbing, and antifouling properties are insufficient in terms of durability against washing and dry cleaning, and the texture is also poor. It has disadvantages such as damage.

The inventors of the present invention have conducted extensive research to improve the drawbacks of the conventional method of processing parent wood, and as a result, have arrived at the method of the present invention. That is, the present invention involves treating a polyester sculpture with a product obtained by reacting a water-soluble polyamine having a polyoxyalkylene chain with a compound having a halohydrin group and/or an epoxy group, and then treating it with an alkaline solution. It is characterized by

According to the present invention, antistatic material with excellent texture and durability,
Water absorption and stain resistance can be seen.

Polyester molded products to which the method of the present invention is applied include:
Examples include alkylene terephthalates such as polyethylene terephthalate, polybutylene terephthalate, and polycyclohexane dimethylene terephthalate. sodium sulfoisophthalate,
Naphthalene dicarboxylic acid, diphenylethane-4,47
Other dicarboxylic acid components such as aromatic dicarboxylic acids such as dicarboxylic acid, alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid, tetrapyrene glycol, 1,3-
Other diol components such as aliphatic glycols such as bentanediol, 1,6-hexanediol, neopentyl glycol, decamethylene glycol, cyclohexane dimetatool, cyclohexanediol, long chain glycols such as polyethylene glycol, polytetramethylene glycol, It may also be a polyester obtained by copolymerizing a small proportion of at least one oxyacid component such as oxybenzoic acid or oxyethoxybenzoic acid. Its morphology is fibrous or M
4. Examples include sheet-like molded products such as woven fabrics, non-woven fabrics, rugs, and films. It is particularly effective when applied to textile products, and can be applied not only to polyester fiber products alone but also to mixed products with other fibers.

The parent wood processing agent used in the present invention includes a reaction product of a water-soluble polyamine having a polyoxyalkylene chain and a compound containing a halohydrin group and/or an epoxy group, including polyoxyalkylene diamine,
Polyoxydialkylene, such as a product obtained by reacting a polyoxyalkylene chain-containing polyhydrene compound obtained by reacting polyoxyalkylene glycol with epihalohydrin, and a polyamine such as diethylenetriamine, dipropylenetriamine, tripropylenetetramine, etc. Compounds containing polyamines and halohydrin groups, epoxy groups, epoxy precursor groups, such as J-pic tetrahydrin, epibromohydrin, ethylene glycol bishalohydrin, binuhalobidrin ether, glycerin polyhalohydrin, dichloroglycerin , diethylene glycol dihalohydrin, polyethylene glycol dihalohydrin, diglycidyl ether, ethylene glycol diglycidyl ether, glycerin polyglycidyl ether, polyethylene glycol diglycidyl ether, etc. φl is particularly preferred. The hydrophilic finishing agent hardens on the polyester molded article due to the presence of the alkaline compound, forming a highly durable hydrophilic and antifouling film. When applying the parent wood finishing agent to the polyester molding, heat treatment is performed in a treatment solution containing a 6:t1 hydrophilic treatment agent and an alkaline compound, or the diameter of the treatment solution applied to the molding is optionally dried. It is then heat treated.

At that time, it is preferable to use urea or a urea-based compound in the treatment liquid. To explain and clarify the treatment conditions, in the heat treatment method in the treatment solution, the parent wood treatment agent is usually 0.5 to 0.
5% owf 1 A polyester molded product is immersed in an aqueous liquid containing an alkaline compound such as an alkali hydroxide, particularly 1 to 30 l/l of sodium hydroxide, and heated to 80°C or higher, preferably 90 to 110°C for 10 more than 2 minutes, preferably 2 minutes
After holding for 0 to 30 minutes, the mixture is cooled, washed, converted into a furnace, and heated to a temperature of 70°. In addition, in a negative heat treatment method in which a treatment liquid is applied to a molded article, a hydrophilic agent is usually used in an amount of 3 to 150 f/l, preferably 10 to 30 c/l, and an alkaline compound such as an alkali carbonate, especially thorium carbonate. 1
After treating the ester molded product with a treatment solution containing -.
%, usually after drying at 140°C or higher, preferably at 150 to 180°C for 10 seconds or more, preferably 20 seconds to 3
Process it to a certain extent. The heat treatment may also be a moist heat treatment.

In the present invention, after the treatment with the Xl water treatment agent, the treatment is further treated with an alkaline solution to improve the texture, antistatic properties, antifouling properties, etc. f'+
It is important to. In alkaline solution treatment,
Usually alkali hydroxide, such as sodium hydroxide, water f
Examples include treatment with polyester KfG such as potassium chloride, lithium hydroxide, and alkali-containing water strips used for 7-ton meter reduction processing, and the total reduction rate is 5 to 1% or more. Treatment is preferred. For this reason, it is preferable to add a 2j reduction accelerator such as an iodine quaternary heptammonium compound to the alkali-containing aqueous solution. The processing method is
In this case, a rock was processed in an aqueous solution containing an alkali.
' +) A method of heat treating an ester molded product, which involves applying an aqueous alkali liquid to a newly water-treated polyester molded product and then opening it for a long time at room temperature or a relatively low temperature.
Examples include a so-called cold batch method and a method of steaming a molded product to which an aqueous alkali solution has been applied.

In the present invention, the polyester substrate is reduced in weight by treatment with an alkaline solution, which not only makes the texture soft, but also further improves antistatic, hydrophilic, antifouling properties, and durability. There is. The reason for this excellent effect is not clear, but it is likely that the crosslinking reaction of the hydrophilic agent or the alkali treatment accelerates the process, and that the alkali treatment introduces active groups into the polyester.
This is thought to be due to improved adhesion or affinity between the active group and the hydrophilic finishing agent. Further, the treatment effect can be improved by carrying out an alkali treatment prior to the treatment with a hydrophilic treatment agent in the present invention, and if desired, a polyester swelling agent can be used in combination with the treatment with a hydrophilic treatment agent.

The present invention will be explained below with reference to Examples. In addition, parts and % in the examples are 1 (quantity basis).The performance H'V value of the treated products in the examples was determined by the following method.

(1) Conditioning under 211:40% RHW using an antistatic rotary static tester (Koa Sho Co., Ltd.) 17
The sample was rubbed with cotton cloth and a load of 500V.

Contact Pressure 2-1 The friction charge voltage was measured when friction was applied at a rotation speed of 400 times/minute and a friction time of 1 minute.

(2) Washing conditions Washing was carried out for 10 minutes at 40°C in a washing bath using lint-free 1y7t (manufactured by Lion Corporation) as a detergent, and then for 10 minutes under running water.

9 Hydrophilic Finishing Agent Synthesis Example 1 A polyoxyethylene polyamine obtained by reacting bischlorohydrin ether of polyethylene glycol with a molecular weight of 100 mm with monodipropylene triamine was further reacted with epichlorohydrin.

The resulting reaction product is referred to as hydrophilic finishing agent A.

9 Hydrophilic Addition]: Agent Synthesis Example 2 80 parts of bischlorohydrin ether of polyethylene glycol having a molecular weight of 16 oo and 13 parts of dipropylene triamine
．． After reacting the two parts, the reaction product was further mixed with "F-m6".
160 parts of bischlorohydrin ether of polyethylene glycol No. 00 was reacted. The obtained reaction product is referred to as a hydrophilic finishing agent B.

Example 1 A polyester spun fabric that had been burnt, glued, and refined in a conventional manner was padded with a treatment solution having the formulation shown in Table 1, and after squeezing the solution at a squeezing rate of 60%, it was dried at 120°C in the morning, and then iso℃
It was seamed for 2 minutes. The resulting treated fabric was further treated with 20 y/l of sodium hydroxide and I) Y K -1125
(Hipposha Yushisha, Quaternary Ammonium Compound 3/1
) in an alkaline aqueous solution containing 90°C for 30 minutes,
Washed with hot water, washed with water, dried, and heated at 170°C for 20 seconds.

The antistatic properties of the obtained fabrics were evaluated and the results are shown in Table 1. In addition, when the weight loss after alkali treatment was measured, it was found that 1
It was 4-16%.

By the method of the present invention, a fabric with soft texture, excellent durability against washing, and electrical properties was obtained. In addition, the antifouling property was also good.

Example 2 The polyester spun yarn fabric used in Example 1 was treated with 1 lium 89/l of wood acetate and DYK 112 B 1.5
Treatment at 90°C for 10 minutes in an alkaline aqueous solution containing f/l (
After the reduction rate was 3.1%), it was subjected to hydrophilic treatment in the same manner as in Example 1 using a treatment liquid with the same formulation as in Example 1, and then treated with 20 f/l of sodium hydroxide (KD'YH-1125).
Alkaline aqueous solution containing 3 f/l 111°C9. , (l
Process for 10 minutes, wash with hot water, wash with cold water, dry, and set (
170°C for 20 seconds). All types M) Reduction rate C114%゛C
Δi). The fabricability of the obtained fabric was evaluated, and the results are shown in Table 1) FI2 Table Fabrics produced by the method of the present invention have a soft texture and excellent antistatic properties with a washability of 1. was gotten. Furthermore, when the treated fabric was further treated with a polyester polyether hydrophilic finishing agent, the soft feel and stain resistance were improved.

Example 3 The polyether snow gun fabric used in Example 1 was treated with the following recipe at 90°C for 30 minutes at a bath ratio of 1:50, and then treated with alkali under the same conditions as Example 1. Processed, washed with hot water, washed with water, dried, and heat treated.

Treatment bath formulation Hydrophilic finishing agent A 3% owf Mizuichika Ditrium 1ay/l '4 (t et al. J) The antistatic property of the treated fabric was evaluated and the results were
Shown in the table.

Table 3: When the obtained treated fabric was further treated with 1-series bamboo repellent 11 ml, it had excellent antistatic and defensive properties. An oil-repellent fabric with a synthetic metal (obtained A).

Example 4 A polyester spun fabric was treated with the Ilk method shown in Table 4 in the same manner as in Example 1, and then further 71': i
a (t”J-triu b, so t/L and DY
An aqueous alkaline solution containing K-1125209/l was squeezed out at a squeezing rate of 70%, then steamed at 100°C for 30 minutes, washed with hot water, washed with water, dried, and heated in a heat cellar) (170°C).
dyeing process) and finished using the usual dyeing process. The 1111 electric current of the obtained treated cloth was evaluated, and the results shown in Table 4 were obtained.

Table 4: The method of the present invention resulted in M1 fibers that were flexible and had excellent antistatic properties.
7), it was done.

Claims (1)

[Claims] 1. After treating a polyester molded product with a product obtained by reacting a water-soluble polyamine having a polyoxyalkylene chain with a compound having a tetrahydrin group or/and an epoxy group, A method for treating a polyester molded article, characterized by treating it with a solution. 2. The method for treating a polyester molded article according to claim 1, wherein the alkaline solution is an alkaline solution containing a quaternary ammonium compound. 3. A method for treating a polyester molded article according to claim 1 or 2, wherein the treatment with an alkaline solution is a weight loss treatment with a weight loss rate of 5% or more.