JPS6227193B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention is a water jet room (hereinafter referred to as
This product relates to weaving oils for WJL (referred to as WJL), especially for synthetic fibers. In recent years, as weaving speeds have increased, weaving oils have been required to have correspondingly improved performance and diversification. especially developed in recent years
Since the weaving speed of WJL weaving is approximately three times that of conventional methods, conventional weaving oils cannot be used as they are. In order to solve the above problems, fibers are made using an oil agent.
Attempts have been made to reduce the friction between fibers and between fibers and the loom, and to apply glue to the warp threads to prevent them from fuzzing, but no method has yet been satisfactory. In particular, methods using oil agents are hardly effective in preventing fuzzing, and in fact tend to cause greater wear on the reeds than when using glue agents.
Not commonly used. On the other hand, as a method of using a sizing agent, for example, a sizing agent containing acrylic ester as a component has been put into practical use, but the sizing agent imparts tackiness to the warp threads, is easily affected by temperature and humidity, and has poor weaving properties. tends to inhibit Furthermore, sizing agents are generally ineffective unless used in large quantities, and since they are attached to threads using an aqueous solution, they must be dried before weaving, resulting in a large loss in terms of work efficiency and energy efficiency. The present inventors have conducted extensive research to obtain a weaving oil for WJL that does not use glue, does not cause fuzzing or yarn breakage, and has less reed wear. As a result, we have found that we can use a non-aqueous oil that contains special ingredients. As a result, they discovered that very favorable results could be obtained, and completed the present invention. That is, the present invention uses about 1.5 to 7.0% by weight of dimethylpolysiloxane in diluent oil and the general formula: RO-(A-) _CH2- (A'-)OR' [] [wherein R and R' are the same or Different alkyl groups or alkylaryl groups having 4 to 18 carbon atoms, A and A' are the same or different, with a degree of polymerization of about 10
~40 represents the residue of a block or random polymer of ethylene oxide and propylene oxide]
The present invention relates to a textile oil for water jet rooms containing about 3 to 30% by weight of the compound represented by: The dimethylpolysiloxane used in the present invention preferably has a viscosity of 10 to 30 cst at 20°C, and the content in the oil agent is approximately 1.5 to 7.0% by weight, preferably 2.5 to 5.0% by weight, particularly preferably 3.0 to 30% by weight.
It is 4.0% by weight. If the content is less than 1.5% by weight or the viscosity is less than 10cst, reed wear will increase.
When the content is 7.0% by weight or more, the scouring properties after weaving tend to deteriorate. The compound represented by the general formula: RO—(A—)CH ₂ —(A′—)OR′ [ ] is produced by combining methylene dichloride and monoalkyl ether or monoalkylaryl ether of alkylene glycol in the presence of an alkali metal, etc. It can be obtained by reaction. Monoalkyl ether or monoalkylaryl ether of alkylene glycol can be obtained by reacting alcohol or alkylphenols with alkylene oxide. Preferred ether compounds in the present invention are those obtained by block or random copolymerization of alcohols or alkylphenols having 4 to 18 carbon atoms with ethylene oxide and propylene oxide. The reaction ratio of ethylene oxide and propylene oxide is preferably 2:8 to 6:4, particularly preferably 3:7 to 6:4, by weight. If the ratio of ethylene oxide is larger than this, the solubility in diluent oil will decrease, and if the balance of this ratio is lost, the warp threads will tend to become fluffy. The total number of moles of alkylene oxide added is preferably 20 to 80 for each of A and A', particularly preferably 25 to 70. Specific examples of alcohols or alkylphenols to which alkylene oxide is added include straight chain saturated or unsaturated alcohols such as butyl alcohol, octyl alcohol, lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, etc.
-Synthetic alcohols with side chains such as ethylhexanol, secondary alcohols such as sec-octanol, alicyclic alcohols such as cyclohexanol, aromatic nuclear alcohols such as benzyl alcohol, butyl phenol, nonylphenol, dodecylphenol, etc. Examples include alkylphenols. Particularly preferred are higher alcohols having 12 to 18 carbon atoms, lauryl alcohol, oleyl alcohol, cetyl alcohol, etc., and the etherification rate is
It is preferable to set it to 95% or more. In the ether compound represented by the formula [], R and R' may be the same or different, and A and A' may also be the same or different. The compound is incorporated in the diluent oil in an amount of about 3 to 30% by weight, particularly preferably about 5.0 to 25.0% by weight. Diluents used in the present invention include low viscosity mineral oil;
For example, spindle oil, liquid paraffin, etc. are suitable, but are not limited thereto. The weaving oil for WJL of the present invention can be used as a lubricant if necessary.
Appropriate additives such as antistatic agents, smoothing agents, emulsifiers, etc. may be blended. The present invention has less reed wear compared to the case of using conventional glue, and the oil can be attached by simply placing the oil on a roller and running the thread, and does not require a drying process unlike the case of glue. Furthermore, a coating amount of approximately 1.0 to 2.0% by weight based on the weight of the fibers is sufficient. The weaving oil for WJL of the present invention can be used for twisted yarns and interlace, and in particular, it suppresses the melting phenomenon that tends to occur when weaving interlace, so uneven dyeing does not occur. Also, unlike glue, it is possible to replenish oil during weaving (after-oil). The present invention will be explained below with reference to Examples. Example 1 and Comparative Examples 1 and 2 Approximately 2.0% by weight (based on fiber weight) of the WJL weaving oil shown in Table 1 was applied to polyester filaments (50d, 24f, 500 twists) by roller touch on a warping machine. let Use this as the warp to create a width of 144cm.
A plain taffeta weave (thread thickness: warp 75d, weft 75d; density: warp 112 threads/inch, weft: 100 threads/inch) was woven using 7,000 threads on WJL at a speed of 400 rpm. The operating rate of the loom, reed wear, gray fabric quality, and scouring properties were evaluated and the results are shown in Table 1. Table 1 shows the results obtained in the same manner without using the ether compound of the present invention.

【table】

[Table] Example 2 and Comparative Example 3 Approximately 1.5% by weight of the WJL weaving oil shown in Table 2 was applied to nylon filament (70d, 17f, interlaced yarn) using a roller touch on a warping machine. into a WJL with a width of 144 cm as the warp.
It was woven at a speed of 400 rpm with 8,500 threads. The results obtained are shown in Table 2. Comparative Example 3 shows the results of similar weaving using an oil agent that does not contain the ether compound of the present invention.

[Table] In the examples, EO represents an oxyethylene group, PO represents a polyoxyethylene residue, and PEG represents a polyethylene glycol residue.

Claims (1)

[Claims] 1. Dimethylpolysiloxane in diluent oil from about 1.5 to
7.0% by weight and general formula: RO-(A-) _CH2- (A'-)OR' [] [In the formula, R and R' are the same or different alkyl groups or alkylaryl groups having 4 to 18 carbon atoms, A and A′ are the same or different, the degree of polymerization is approximately
A weaving oil for water jet looms containing about 3 to 30% by weight of a compound represented by 10 to 40 residues of a block or random polymer of ethylene oxide and propion oxide.