JPH0491277A - Treating agent for weaving fiber - Google Patents

Abstract

PURPOSE:To provide the subject treating agent imparting excellent fiber- collecting property and smoothness to warps and good weaving property on the weaving of fibers by compounding by employing a composition comprising a copolymer of an alpha-olefin and a vinylic compound such as (meth)acrylic acid (ester) in a specific wt. ratio. CONSTITUTION:(A) A 4-30C alpha-olefin is copolymerized with (B) a vinylic compound selected from (meth)acrylic acid and esters thereof in a wt. ratio of 30-90:70-10 to prepare a treating agent used for weaving fibers and exhibiting a good weaving property. The application of the treating agent to wefts comprising the spun yarns or filaments of natural fibers or synthetic fibers gives excellent fiber-collecting property and smoothness to the wefts. Since the treating agent does not positively require to be dried, the cost of fiber treatment can be reduced compared with conventional treating agents.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a treatment agent for weaving. More specifically, it is a weaving treatment agent that can impart excellent convergence and smoothness to the warp threads during weaving and exhibit good weavability.

[Prior Art] Conventionally, various processing agents have been used to improve weavability. - For boat fishing, a method is used in which a water-soluble sizing agent such as starch, carboxymethyl cellulose, polyvinyl alcohol, or acrylic resin is used to impart cohesiveness and smoothness to the warp threads.

However, in this method of using a water-soluble sizing agent, the warp yarns are immersed in an aqueous solution of the sizing agent and dried to adhere the sizing agent to the warp yarns, and the energy cost required for drying is the highest in the fiber manufacturing process. There were problems such as it took a long time and required a large area for drying.

In recent years, a method using a glue that does not contain water has been proposed as a solution to these problems.

This is a method in which a heated and melted sizing agent is attached to the warp threads, and then cooled and fixed to the warp threads.Compared to water-soluble sizing agents, gluing requires active drying in a chamber or cylinder in the thread manufacturing process. It is possible to save energy without having to do so.

Compositions used for this purpose include dry sizing glues (Japanese Patent Publication No. 4B-16479) whose main component is a reaction product of polyvinyl carboxylic acid and polyalkylene oxide or polyalkylene oxide derivatives, and acrylic acid esters. Or an oil sizing agent using a composition obtained by solution polymerizing a methacrylic acid ester and acrylic acid or methacrylic acid in an oil component (Japanese Patent Publication No. 1986)-44
No. 6587, a melt size composition for textiles using a mixture of an ethylene/acrylic acid copolymer and triglyceride wax (Japanese Patent Publication No. 1-14346), and the like are known.

[Problems to be solved by the invention] However, these conventionally known non-aqueous sizing agents cannot impart sufficient smoothness to the warp yarns, and do not penetrate sufficiently into the interior of the yarns. Therefore, it is not possible to increase the binding force of the thread. In addition, these glues mainly adhere to the surface of the thread, causing problems such as glue falling off, and when the threads are wound around a beam, they stick to each other and cause a blocking phenomenon. be.

The present invention was developed in view of the above-mentioned problems.It is used in warp yarns to sufficiently penetrate into the inside of the yarn, imparting excellent cohesiveness,
The object of the present invention is to provide a processing agent for am that has good smoothness and can exhibit good weavability.

[Means for Solving the Problems] The present inventors conducted extensive research to solve the above problems, and found that α-olefin and a vinyl compound selected from acrylic acid, methacrylic acid and/or esters thereof. The present inventors have discovered a weaving treatment agent that can impart excellent convergence, smoothness, and cohesiveness to warp yarns during weaving, and can exhibit good weaving properties by using a composition obtained by polymerizing Ta.

That is, the present invention comprises (A) an α-olefin having 4 to 30 carbon atoms, and (B) a vinyl compound selected from acrylic acid, methacrylic acid, and/or their esters in a weight ratio of (
A): (B) = 30-90 A weaving treatment agent using a composition formed by polymerization with a nia of 0-10.

The α-olefin used in the present invention includes α-olefins such as butene, hexene, octene, decene, dodecene, tetradecene, hexadecene, octadecene, eicosene, tocosene, tetradecene, hexadecene, oftacocene, triacocene, etc., and the carbon The number is 4-3
0 is preferred.

If an α-olefin with a carbon number of less than 4 is used, sufficient smoothness cannot be obtained, and if an α-olefin with a carbon number of more than 30 is used, it will have a high melting point and become a highly crystalline treatment agent. This is undesirable as it may cause the material to fall off.

Component (B) used in the present invention includes acrylic acid, methacrylic acid, acrylic esters, and methacrylic esters, and a vinyl compound selected from these is used.

The alcohols constituting the above ester include methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, tertiary-butyl alcohol, hexyl alcohol, pentyl alcohol, octyl alcohol, nonyl alcohol, and 2-ethylhexyl alcohol. , decyl alcohol, lauryl alcohol, heptyl alcohol, myristyl alcohol, stearyl alcohol, oleyl alcohol, β-ethoxy alcohol, and alcohols obtained by adding ethylene oxide and/or propylene oxide to these alcohols.

The composition used in the present invention comprises (A) the α-olefin;
It is obtained by mixing (B) with a vinyl compound selected from acrylic acid, methacrylic acid, and their esters in a specific ratio and performing a polymerization reaction. The mixing ratio when carrying out the polymerization reaction is preferably (A):(B)=30-90:, 70-10 in terms of weight ratio. The mixing ratio is less than 30% by weight of (A) and (
When B) exceeds 70% by weight, the viscosity becomes high, making it difficult to uniformly adhere to the yarn, resulting in a composition that tends to cause uneven adhesion. In addition, (B) is less than 10% by weight,
When (A) exceeds 90% by weight, it has smoothness, but
A less focused composition is obtained.

Methods for polymerizing the α-olefin (A) and the vinyl compound (B) include conventionally known bulk polymerization methods;
Examples include solution polymerization methods. As a bulk polymerization method, for example, (A) and (B) are mixed in a predetermined ratio, and 0.1 to 5% by weight of a polymerization initiator such as benzoyl peroxide or azobisisobutyronitrile is added thereto. , 4 at 40-120℃
This can be carried out by reacting for ~10 hours. In the solution polymerization method, the reaction can be carried out in the same manner as described above in the presence of a carboxylic acid, mineral oil, natural wax, synthetic wax, etc., which will be described later.

In the above polymerization reaction, for example, if an α-olefin with a large number of carbon atoms is used as (A) and the mixing ratio of (A) is high, the (A) component will be added to the composition after polymerization. Although it may be contained as an unreacted product, it can be used as it is as a weaving treatment agent, and if the components (A) and (B) are polymerized in the above ratio and as described above, Even if a part of each component is contained in an unreacted state, the weaving treatment agent of the present invention can be used.

The weaving treatment agent of the present invention preferably contains 50% by weight or more of a composition obtained by polymerizing (A) and (B),
If the content of the composition is less than 50% by weight, the focusing property cannot be sufficiently exhibited, which is undesirable. The viscosity of the weaving treatment agent is preferably 50 to 200 CP, more preferably 90 to 110 CP at 80°C. If the nominal viscosity of the weaving treatment agent at 80° C. exceeds 200 CP, it will be difficult to apply it uniformly to the yarn, and uneven adhesion will likely occur.

Therefore, in the polymerization reaction, it is preferable to control the polymerization reaction so that when the composition obtained by polymerization is contained in the %1 textile treatment agent in an amount of 50% by weight or more, the viscosity thereof falls within the above range.

The invention! ! The treatment agent for woven horses may contain carboxylic acid, mineral oil, natural wax, synthetic wax, etc. in an amount less than 50% by weight.

The above carboxylic acids include caproic acid, caprylic acid, 2
- straight-chain or branched-chain aliphatic monocarboxylic acids such as ethylhexylcarboxylic acid, lauric acid, stearic acid, isostearic acid, montanic acid, oleic acid, linoleic acid, erucic acid, coconut fatty acid, palm fatty acid, tallow fatty acid, Examples include alicyclic monocarboxylic acids such as cyclohexanecarboxylic acid, aromatic carboxylic acids such as benzoic acid, and when these carboxylic acids are used in combination, the above (A) and (
The composition obtained by polymerizing B) can be easily removed, ie, scoured. Its blending amount is 10M in the weaving treatment agent.
It is preferably within Ik%.

Further, examples of the mineral oil include those having a Lettura F kinematic viscosity of 40 to 500 seconds at 30°C, and 50 to 500 seconds.
200 seconds is more preferable.

Examples of natural waxes include amarrow, carnauba wax, cotton wax, paraffin wax, and microcrystalline wax. Examples of synthetic waxes include butyl stearate, 2-ethylhexyl stearate, lauryl oleate, and other fatty acids and monovalent or Examples include esters with dihydric alcohols, esters between fatty acids and polyhydric alcohols such as glycerin trioleate, glycerin trilaurate, neopentyl glycol dilaurate, rapeseed fatty acid triglyceride, coconut fatty acid triglyceride, and olive oil fatty acid triglyceride. Smoothness can be further improved by using these mineral oils, natural waxes, synthetic waxes, etc. in combination, and the blending amount thereof is preferably 50% by weight or less in the fiber treatment agent.

The weaving treatment agent of the present invention can be used to treat various fiber yarns using a water jet loom (WJL) or an air jet loom (AJL).
) etc. i! When weaving, it can be impregnated or attached to the warp threads to improve weaving properties.

Examples of the above-mentioned fiber yarns include spun yarns and filament yarns; examples of the spun yarns include single or double yarns such as cotton, polyester, rayon, ester/cotton, and ester/rayon; and examples of the filament yarns include, for example. ,
Non-twisted yarns, twisted yarns, false twisted yarns, interlaced yarns, etc. of polyester, nylon, acetate, rayon, etc. can be mentioned.

As a method for attaching the weaving treatment agent of the present invention to the warp yarns, the usual dip nip method, roller touch method, etc. can be used. The amount of adhesion is 1 to 5% by weight based on the warp threads.
is preferred.

The present invention will be explained in more detail with reference to Examples below.

[Example Preparation of co-polymer] 125 g of n-butene, 50 g of α-olefin having 16 to 24 carbon atoms (diameter 1220 days, manufactured by Mitsubishi Yuka), 50 g of lauryl methacrylate, 25 g of ethyl methacrylate
g was charged, and 3 g of henzoyl peroxide was gradually added thereto while stirring at the reflux temperature of n-butene-1 under a nitrogen gas stream. Next, the reaction temperature was gradually increased to 110°C for 3
A time polymerization reaction was performed. Based on the properties of the obtained polymer compositions, a polymerization reaction was carried out in the same manner as above to prepare polymer compositions Nos. 2 to 8 used in Examples and Comparative Examples.

The types and reaction ratios of the raw materials used in the reaction and the properties of the obtained polymer compositions are shown in Nos. 2 to 8 in Table 1.

Polymerization composition No. 9 was used in Comparative Example 3 by polymerizing methyl methacrylate, butyl methacrylate, and methacrylic acid using isooctyl valmitate as a solvent. The reaction ratio and properties are shown in No. 9 of Table 1.

Examples 1 to 8, Comparative Examples 1 to 3 Polymer compositions No. 1 to 9 shown in Table 1 were used, additives were blended thereto as needed, and weaving treatment agents shown in Table 2 (Example 1 to 8 and Comparative Examples 1 to 3) were prepared. Using the obtained weaving treatment agent, polyester filament yarn was treated by the roller touch method. Using the treated polyester filament yarn, TM type table resultant force test, cut fluff length measurement test, and F/M friction measurement were carried out. test,
A blocking property test was conducted to determine the cohesiveness (
TM type stand resultant force cut fluff length), smoothness (F/M friction)
, the adhesiveness (blocking property) was evaluated.

The processing conditions for polyester filament yarn using the weaving treatment agent, the performance evaluation method, and the performance measurement results (Table 2) are shown below.

・Processing conditions Treatment Thread: Polyester filament yarn (50d
/24f, interlaced 18 pieces/m) Processing method
Two-roller touch method processing bath temperature: 85°C Roller diameter: 150mm Roller rotation speed: 0.6 times/min yarn processing speed
: 60 m/min Adhesion amount: 3.2 wt% TM type combined force test Using a TM type combined force tester manufactured by Eikagaku Sei A, 19 polyester filament threads treated with a weaving treatment agent, load 400 g, The test was conducted under the conditions of a bending angle of 116 degrees and 1000 friction cycles, and evaluation was made according to the following criteria.

○: No or very little unraveling △: Slightly unraveling of the filament X: Completely unraveling of the filament - Cut fluff length measurement test! ! A polyester filament system (length 50 cm) treated with a fiber treatment agent was hung vertically with a load of 50 g applied to the lower end, and the length of the looseness produced when the center of the thread was cut with scissors was measured.

・F/M friction measurement test A polyester filament yarn treated with a 1-meter treatment agent was measured at a yarn speed of 50 m/mi using a running tension measuring device.
Friction body (φ10mm chrome plated rod, contact angle 9
0 degrees, input tension] Og)
g).

・Blocking property test A polyester filament yarn treated with a weaving treatment agent was placed on a miniature beam of 60 mmφ x 180 mmH.
The threads were wound for 3,000 m while applying a tension of 300 g, and left in a constant temperature room at 40° C. for 24 hours. After leaving, the beam was cut to observe the state of the threads sticking to each other, and evaluation was made according to the following criteria.

O: There is no sticking between the threads △: There is some sticking between the threads ×: There is a lot of sticking between the threads [Effects of the invention] As explained above, The weaving treatment agent of the present invention uses a composition obtained by polymerizing α-olefin and a vinyl compound selected from acrylic acid, methacrylic acid, and/or their esters in a specific ratio, and uses a water-soluble sizing agent. compared to
It does not require active drying when processing yarn, making it possible to save energy.It also reduces the amount of oil supplied and does not require post-treatment with after-oil, etc., which reduces costs. Also, compared to conventionally known non-aqueous adhesives,
Patent applicant: Miyoshi Yushi Co., Ltd., which has characteristics such as sufficiently penetrating into the yarn, low surface tackiness, and significantly improving weaving properties.

Claims (1)

[Claims] 1. (A) α-olefin having 4 to 30 carbon atoms, and (B)
A vinyl compound selected from acrylic acid, methacrylic acid and or their esters in a weight ratio of (A):(B)
A weaving treatment agent characterized by using a composition obtained by polymerizing the ratio of 30 to 90:70 to 10.