JPS59150179A - Treatment of tuft - 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 deals with stains caused by sewing machine oil (hereinafter referred to as oil stain) that occur after sewing taffeta (dense plain fabric).
The texture is flexible.

(2) This relates to a method for treating taffeta that does not cause shearing or stiffness and has good water-based durability.

In recent years, nylon taffeta that uses multifilament raw silk (straight yarn that has not been crimped and bulked) that has been treated with water repellency or coating has become popular, but the problem of oil staining with this type of textile product has come into focus. It has been. In other words, the oil spreads in a line or strip along the seam line, causing discoloration, or the surface of the fabric is discolored in spots.The cause of this phenomenon is that it adheres to the sewing thread during the sewing machine process. There are various types of oil stains, such as sewing machine lubricants, sewing thread oils, sewability improvers, and sewing auxiliary materials, but oil stains are overwhelmingly caused by sewing machine lubricants adhering to sewing threads during the sewing process. There are many Sewing machine lubricating oil is a low-viscosity oil that is sprayed from the valley at the bottom of the throat plate of a nine-stitch sewing machine, and is automatically supplied to prevent heat generation due to the rotation of the valley. By adjusting the amount of oil supplied, oil stain can be improved to a considerable extent. However, oil stain tends to be particularly noticeable in taffeta made of triangular-cut mi threads and round-section ultra-fine threads, which have recently been developed as differentiated products with unique texture, touch, and gloss, and are simply a countermeasure for sewing surface thickness. Now, this problem can no longer be avoided. This tendency is particularly remarkable in so-called bright yarns that do not contain titanium oxide.

In order to prevent oil stain, it is necessary to form a film on the surface of each single fiber with a critical surface tension lower than the surface tension of the perforation pile to prevent oil from diffusing into the gaps between the fibers. A-ru. It is known that a fluoroalkyl group-containing compound having a low critical surface tension is not suitable for the film required for this purpose.

Such compounds are conventionally used in N7 as an oil repellent, but in order to obtain the effect of preventing oil stains, the compound must be used in a light concentration.

As a result, the disadvantage is that the texture becomes very hard.

Such drawbacks include softeners such as amino-modified polysiloxanes with viscosity IO, DDDcst, viscosity 6. DODcst diol-modified polysiloxane, viscosity 8.0-D D~io
, o o.

This can be improved by using epoxy-modified polysiloxane such as cst. However, use of such softeners causes the disadvantage that the fiber surfaces become too smooth, making it easy for misalignment to occur. In addition, in some cases, perclene, mineral turpentine, etc. may cause harshness and a decrease in water repellency, washing resistance, and dry cleaning resistance.

The present inventors have arrived at the present invention as a result of intensive studies on processing methods that do not have the above drawbacks while maintaining the oil stain prevention performance of the fluoroalkyl group-containing compound.

That is, the present invention consists of the following configuration.

fl) When using a fluoroalkyl group-containing compound for raw water pumping processing of taffeta, the fluoroalkyl group-containing compound vIJ has a viscosity of more than 20.0OOcst and has a reactivity of 9 to 100 parts by weight of vIJ. DODcs
A method for treating taffeta, characterized by using a composition containing 10 to 80 parts by weight of the following dimethylpolysiloxane.

(2) The taffeta processing method according to item 1, characterized in that the taffeta yarn is an irregular cross-section yarn made of nylon or polyester or a round cross-section ultrafine yarn with a single yarn fineness of 18 deniers or less. .

The fluoroalkyl group-containing compound used in the present invention has a fluoroalkyl group having 3 to 20 carbon atoms, preferably 6 to 12 carbon atoms, and has water engineering properties (25'c and 1
The main transition temperature (melting point, glass transition point or softening point) is 2o'a or less) and the molecular weight is about 30D.
~200,000 non-stick compounds.

Here are some examples of such organic fluorine compounds.

As shown in the following A-D. Note that it is not necessary to limit the present invention to the compounds exemplified in each section.

A. A homopolymer of a vinyl monomer having a fluoroalkyl group having 6 to 20 carbon atoms, or a copolymer of a vinyl monomer having no gold wire and fluorine.

Examples of vinyl monomers having a fluoroalkyl group include the following.

C,F,,CH20COCH=CH.

C7F,,CH,CH,0COCH=CH.

CaF,,5o2N(C,H,)CH,CH,0COC
H= CH2C5F+y"0tN(CHx)an2c
n,ococ(an,') -CHtC,F,,C0N
(C,H,)CH,CH,0COC(CH,) = C
H.

cF, (CF゛,), cH2cH, ococn = C
H.

CF, (Cp,), CH, CH20CH=CH.

CsF+y (CH,), ococ(cH,) -C
H2C,F,,CH20HCH,0COC(CH,)-
= CH.

H (CF, ), CFO(CH2), 0COCH=CH.

02FB (OCF20F!),'ocF,cir,
con(cn, )CH,CH.

cH=C42ico.

C,F,,So,N(CH2CH,○C0CH= CH
2).

c, F,, so, N (cn, ) (CHt) +.

C00CH2CH= Cl-1°C,F,,5o2N(
C,H,)CH,ca,ococH=CHCOOC4
HC,F,,So,N(CH,)CH3CN,0COC
H=CH.

C,F,,5O2NHCH,CH,5O2CH= CM
.

Examples of vinyl monomers that do not contain fluorine are:

Examples include ethylene, propylene, butylene, butadiene, isoprene, chloroprene, and vinyl chloride.

Vinylidene chloride, styrene, diacetone acrylamide, N-methylol acrylamide, acrylonitrile,
In addition to vinyl monomers such as acrylamide and vinyl acetate, vinyl compounds having siloxane bonds and acrylic acid (methacrylic acid) compounds other than those mentioned above can be used.

Here, acrylic acid compounds other than those mentioned above refer to esters and amide esters, such as alkyl alcohols, alkyl amines (here, alkyl refers to those having 20 or less carbon atoms), 9 or polyether derivatives, amide derivatives such as polyethylene glycol acrylic acid. Esther and N
Compounds such as -butoxymethylene acrylic acid amide and the like are also applicable. Any of the monomers can be used in combination.

These homopolymers or copolymers can be produced by known vinyl polymerization methods.

For example, solution polymerization and emulsion polymerization using a radical initiator are common. The molecular weight of the polymer depends on the initiator concentration,
Although it can be adjusted to a preferable range depending on the type and concentration of the chain transfer agent, generally 3. OU 0 or more is preferable.

B. A monohydric or polyhydric alcohol containing a fluoroalkyl group having 6 to 20 carbon atoms and a monohydric or polyhydric carboxylic acid (
tonoester or polyester (optionally fluorinated).

Esters or polyesters of monohydric or polyhydric alcohols (which may be fluorinated) and monohydric or polycarboxylic acids having fluoroalkyl groups having 3 to 20 carbon atoms.

Examples of ingredients used in this case are as follows.

Examples of fluoroalkyl group or fluorinated monohydric or polyhydric alcohol-1: bamboo carboxylic acid include:
for example.

CFCHCHOH 1922 C,F,So,N(CjH,)CH,CH,onCIF
l, 5O2N (CH3CH7○H).

cllF,,5o2N(C2H,)CH,CH(OH)
C bow 0'HC,F,,C00H c,F,Wso2N(C,n,)CH2cooHC,F
CHCHCHCOOH - OOH, etc., and other ingredients include 'PL, benzoate e, adipic acid oxidized sebacic acid phthalic acid, maleic acid, trimellitic acid, ethylene glycol monomethyl ether, ethylene glycol.

Propylene glycol, diethylene glycol.

Glycerin, polypropylene glycol, 2-ethylhexanol. Can contain stearyl alcohol, etc.

The polyester preferably has a molecular weight of 1.000 or more.

A monohydric or polyhydric alcohol having a fluoroalkyl group having 3 to 20 C6 carbon atoms (in some cases, a fluorine-free monohydric or polyhydric alcohol may also be used) and a -hydric or polyhydric isocyanate.

For example, polyurethanes consisting of phenyl isocyanate, tolylene diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, and polymethylene polyphenylene diisocyanate.

The polyurethane preferably has a molecular weight of 300 or more.D. Epoxy compounds having a fluoroalkyl group having 3 to 20 carbon atoms, such as (CF, ), C FOCH, CH - CH.

\1 C, F,, SO2N (C, W5) CI (2c history-//C
H2C, Fl, CH3CN-CH.

Homopolymers such as \1 and copolymers preferably with fluorine-free epoxy compounds such as propylene oxide and epichlorohydrin.

The molecular weight of such a polymer is preferably 0,000 or more.

The fluoroalkyl group-containing compounds described above can be used alone or in combination of two or more.

On the other hand, the viscosity of the reactivity used in the present invention is 20,
Dimethylpolysiloxane having a value exceeding 00 C6t and not more than 2,000,00 C6t refers to a compound of the following formula having a high degree of polymerization, and can be used either singly or as a mixture of two or more.

(However, R9 represents a methyl group, methoxy group, phenyl group, or hydroxyl group, R2 represents an AX group, methyl group, or phenyl group, R5 represents a methyl group or a phenyl group, and Aid has 1 to 5 carbon atoms. An alkylene group or an arylene group having 6 to 10 carbon atoms, and X represents an epoxy group, a hydroxy group, an amine group, or a carboxyl group.

Ushita 1 7! + m g n is a positive integer representing the number of repeating units, exceeding 20,00Qcet and 2,00
(This is the number that gives a viscosity of 0,000 cst or less).

In the present invention, 9 has a hydroxyl group at both ends and has a viscosity of 3.
0. Dimethylpolysiloxane having an LI of 00 to 60,000 cst is particularly preferred since it does not cause misalignment.

In the present invention, the compounding ratio of the fluoroalkyl group-containing compound and the polysiloxane is as follows:
The latter is 10 to 80 parts by weight; if the amount of polysiloxane is less than this range, the texture will be very hard, and if it is too much, scratches will be noticeable, and stiffness due to perkleen/petroleum turpentine will easily occur. In addition, the water repellency decreases due to washing or dry cleaning.

In the present invention, the above compound can be used after being dispersed in water or dissolved in an organic solvent. When dispersing in water, use a cationic, anionic, or nonionic 9 zwitterionic surfactant. Also,
In some cases, the liquid can be kept stable by adding a small amount of organic solvent. When dissolved in commercial bath additives, trichlorethylene, tetrachloroethylene, 1,1.1
-Trichloroethane, 1,2-dichloroethane, methylene chloride, trichlorotrifluoroethane.

Ethyl acetate, n-butyl acetate 9-acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone,
Ethyl ether, cyoxane, tetrahydrofuran, benzene, toluene, xylene.

Mineral turpentine, n-hexane, methanol.

Commonly used include, but are not limited to, ethanol, inpropyl alcohol, n-butanol, and the like. Two or more organic solvents may be used in combination.

As the treatment method, a dipping and absorption method, a spraying method, a coating method, a spraying method, a printing method, etc. can be employed, but there is no particular limitation.

The treatment temperature for the above compound varies depending on the treatment method, but generally the fluoroalkyl group-containing compound is 0.1 to 100 g/J in pure content, more preferably 2 to 20 g/J.
/l, polysiloxane is 001~80g/l in pure content
l + more preferably 02-16g/7! It is.

The treatment can be carried out in one stage or in two or more stages, and drying and heat treatment are carried out as appropriate. The higher the heat treatment temperature, the shorter the time, but generally it is 100'C to 200'C, preferably 160 to 170'O. The time is 10 seconds to 10 minutes, more preferably 60 seconds to 2 minutes. And after processing,
Generally, it is calendered to make the cloth surface smooth and give it luster.

The tack that is the object of the present invention is a dense plain fabric made of nylon or polyester threads or a similar fabric, and is usually dyed or dyed/coated.

Examples of the nylon include nylon 66, nylon 6°, copolymer-modified products thereof, -1, and products blended with a modifier.

Polyesters include polyethylene terephthalate,
Examples include polyoxyethylene benzoate, polybutylene terephthalate, or copolymerized and modified products of these, copolymerized products with sulfate or thorium sulfuryl inphthalate, and blends with modifiers. I get kicked.

And as for the threads obtained from these polymers.

The effects of the present invention are particularly noticeable in the case of bright yarns that do not contain titanium oxide. I cut it. Regardless of the presence or absence of titanium oxide, the effects of the present invention are particularly great in the case of irregular cross-section yarns such as triangular cross-section yarns or round cross-section yarns with a single yarn fineness of 18 deniers or less.

Note that just because it does not fall into the above range does not mean that it is not effective; in cases other than the above, there are many cases in which the problem of oil stain is relatively small to begin with.

The taffeta treated according to the present invention does not suffer from oil stains, seams, or stiffness, has a soft texture, and is water repellent and has good durability.

Furthermore, the present invention has the advantage that there is no process cost requirement because it can be applied to water repellent finishing by pad dry curing, which is commonly performed.

Next, the present invention will be specifically explained with reference to Examples, but the present invention is not particularly limited thereto.

In addition, the evaluation of oil stain in the examples.

An interlock sewing machine was used to sew with sewing thread coated with a certain amount of sewing machine lubricating oil, and judgment was made by visual judgment of the spread of the oil after 2 dhr and by measuring the length (Cm) of discoloration due to the oil.

Visual judgment is as follows, and unless the level is 06 or higher, there is no commercial value.

○: No dirt is visible at all.

○△: Dirt is slightly visible depending on the viewing angle.

△: Stains are noticeable.

△×: Dirt is quite noticeable.

×: Dirt is clearly visible.

The degree of slippage resistance was measured by the JIS L '1079'B method (thread pulling method). Generally, 150g or more is required both vertically and horizontally.

For sharpness, pipette each liquid (
distilled water, water, water, perchloroethylene) 1
Apply ~2 drops directly and let it penetrate thoroughly with a glass rod, then dry naturally in a wind-free room away from direct sunlight. After drying, the degree of discoloration of the dripped area of each liquid is graded as follows.

If it is not grade 4 or higher, it has no commercial value.

Grade 5: No discoloration observed at all.

Grade 4: Slight discoloration is observed.

Grade 6: Slight discoloration is observed.

Grade 2: Significant discoloration is observed.

Grade 1: Significant discoloration is observed.

Water repellency was determined according to JIS L 1092 5.2 water repellency (spray test). For laundry, J-Kou SL02'1
The method specified in No. 103 of Appendix 7 (1) Washing method and dry cleaning are the method specified in 5. of JIS L 1018.
The method specified in 36.2, Method E-2 was followed.

In addition, after washing and dry cleaning, water repellency was evaluated after air drying.

The texture is expressed by comparing the flexibility depending on the treatment or evaluating it by a sensory test, and the evaluation by the sensory test is as follows. Unless the level is 06 or higher, there is no commercial value.

○: Very soft.

○△; Soft.

△: Slightly hard.

△×: Slightly hard.

×: Very hard.

Example 1 Several types of taffeta (Table 1) using various types of nylon threads in the vertical and horizontal directions were desized and scoured, dried and intermediately set, dyed gray using a Zitzker dyeing machine, and dried. After that, the 9th A,
Pad the processing solution of B treatment with mangle (Pickup 35
%)t, after drying for 30 seconds at 150'a with a non-touch dryer.

Heat treatment was performed at 170°C for 33 seconds using a pin tenter.

Thereafter, it was calendered and evaluated. The results are shown in Table 1.

A treatment (method of the present invention) B treatment (conventional treatment) What is dispersion ■?

C,H,,So,N(CH3)CH3CH,0COCH
= A dispersion obtained by emulsion polymerization of 85 parts of CH, 10 parts of 2-ethylhexyl methacrylate, and 5 parts of N-methylolacrylamide with 2 parts of octadecyldimethylamine acetate and 5 parts of polyethylene oxide alkyl phenyl ether (concentration 20%) and C,F,,So,N(C,H,)cH,Can,oH2
A solution of 10 parts of urethane obtained by addition reaction of 2%/l/1 mole of tolylene diisocyanate dissolved in 10 parts of methyl isobutyl ketone is mixed with 06 parts of octadecyldimethylamine solution (9) with hydroxy groups at both ends. An aqueous dispersion of 20% dimethylpolysiloxane having a viscosity of 30,000 to 50,000cst and 15% polyethylene oxide alkylphenyl ether.

Dispersion ■ is a viscous m16 having hydroxyl groups at both ends.
．． This is an aqueous dispersion of 20 parts of dimethylpolysiloxane and 15 parts of polyethylene oxide alkyl phenyl ether.

From Table 1, it can be seen that treatment A of the present invention has good characteristics in all cases.

Example 2 Dyeing and drying of nylon taffeta of level ① of Example 1 The same treatment as in Example 1 was carried out except that the concentrations of dispersion liquid ① and dispersion liquid ② were changed in two coats. The results are shown in Table 2.

It can be seen that all properties are good within the scope of the present invention.

Example 6 "Dyeing and drying of nylon taffeta at the level (■) of Example 1" The same procedure as in Example 1 was carried out except that the viscosity of the dimethylpolysiloxane having hydroxyl groups at both ends, which was mixed with the dispersion liquid (2) in duplicate, was changed. processed. Example 4 The same treatment as in Example 1 was carried out except that the treatment liquid was changed from C treatment to G treatment in the dyeing, drying and coating of nylon taffeta of level 1 in Example 1.

The results are shown in Table 4.

C decision D decision 9 treatment method F treatment G passed away What is dispersion ■?

C, F,, CH2CH,0COCH= CH, 55 parts by weight, Acrylic CG'H,= C(CH,)Coo(CH,
CH, O), H) 20 parts by weight.

N-butoxymethylene acrylic acid amide CCH, = C
HCONHCH7QC,H9': + 5 parts by weight of Kyoden-1 combination emulsified with a nonionic surfactant at a concentration of 1
This is an aqueous dispersion of DcSt borine loxane 20% and polyethylene oxide alkyl phenyl ether 1.5%.

The dispersion has an amino group with a viscosity of 50,000ce
This is an aqueous dispersion of 20% polysiloxane and 1.5 Ll of polyethylene oxide alkyl phenyl ether.

Dispersion ■ is a viscous W with hydroxyl groups at both ends.
D, 0 [:l D c st dimethylpolyrinloxane 15%, viscosity W 10,000 cst methylhydrodiene polysiloxane 5 parts, and stannous octoate 0
5% aqueous dispersion of polyethylene oxide alkyl phenyl ether (1,5 tI).

Solution (1) is a solution prepared by dissolving the copolymer of Dispersion (1) in (1.1.1-)lichloroethane at a concentration of 10.

Bath liquid (■) has a viscosity of 50.9 and has hydroxyl groups at both ends.
0OOcst dimethylborinoxane 25 ratio and viscosity 2
1.1.1- 10% of dimethylpolysiloxane of 0.00 units cs't and 5 parts of trimethoxysilane coupling agent.
1) A solution dissolved in chloroethane.

From Table 4, it can be seen that all t's properties are good with the treatment of the present invention.

Example 5 75 denier 24 made of polyethylene terephthalate
△cross section bright yarn of filament 97 vertically/i
The taffeta woven at a density of 94 strands/in h was desized and scoured, dried for 9 days and set in an intermediate setting, dyed with a high-pressure jigger dyeing machine in Y/I, and dried. After that, use a mangle to apply the treatment solution from A-law to G (pickup 40%) and use a non-touch dryer to dry the hair at 130°.
After drying for 130 seconds.

Heat treatment was performed using a pin tenter at 150'C for 30 seconds.

After that, it was calendered and evaluated. The results are shown in Table 5. It can be seen that all nine properties are good using the method of the present invention.

Claims (1)

[Scope of Claims] (I) A fluoroalkyl group-containing compound that has a viscosity of more than 20.0 QOcst and has a reactivity of 9 to 100 parts by weight of the fluoroalkyl group-containing compound when water-repellent and oil-spraying a tank. A method for treating taffeta characterized by using a composition containing 10 to 80 M parts of dimethylborisyloxane having a weight of 2,000,000 cst or less. (2) Mariya, in which the taffeta threads are irregular cross-section yarns made of nylon or polyester. 2. The method for treating taffeta according to claim 1, wherein the round cross-section ultrafine yarn has a single yarn fineness of 1.8 tenier or less.