JPS6312750A - Cut pile carpet and its production - 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 <Industrial Application Field> The present invention relates to a multicolored mixed fiber cut pile carpet and a method for manufacturing the same. Specifically, the present invention relates to a wide range of multi-colored mixed fiber cut pile carpets with strong contrast and a method for manufacturing the same, as well as solving the underlying causes of meridional defects.

<Prior art> Multicolor mixed fiber pile carpets use pile yarns that are a mixture of dyed yarns or anti-dyed pile yarns that are a mixture of two or more types of yarns with different dyeability. Due to problems such as complexity, poor color fastness, and insufficient contrast, we proposed a mixed fiber anti-dyed loop carpet of polyester filament dyed yarn and crimped polyamide filament yarn in Japanese Patent Application No. 61-44023, but it was difficult to cut. There is also a strong demand for pile carpets to eliminate the warp defects of solid color carpets and to improve the fastness and contrast of differential color carpets.

<Purpose of the Invention> In view of the above circumstances, the present inventors provide a multicolor mixed fiber cut pile carpet that is anti-dyed and has no warp defects, has strong contrast, and can obtain a wide range of hues, and a method for producing the same. It is with this purpose that the present invention has been achieved.

<Configuration of the Invention> That is, the present invention comprises: (1) dyed polyester filament fibers (A) with a single filament fineness of 1.0 to 5.0 denier and different dyed crimped polyamide filament fibers (B); A carpet in which all or part of the cut pile yarn is a mixed fiber yarn having a mixed fiber part and a non-mixed fiber part, and the cut pile yarn satisfies the following conditions (a) to (c). Characteristic cut pile carpet (A) Ratio of number of components: Fiber (B) / Fiber (△) 0.
3 to 2.0 (b) Mixing ratio: fiber < B) / (fiber (A) 10 fibers (B)
)) 0.70 to 0.95 (c) Hue difference dichroic difference (Δ
E) is 3.0 or more [2] The cut pile carpet (3) according to claim (1), which contains polyester filament fibers dyed in a manner other than ia miscellaneous (A) and y & miscellaneous (B).
In a method for producing a cut pile carpet, in which dyed polyester filament [t (A) and crimped polyamide filament m fiber (B) are mixed in a mixing fiber processing nozzle, and the obtained mixed fiber yarn is used as pile yarn, m fiber (A) 0.0
The mixed fiber yarn is supplied directly to the nozzle under a yarn tension of 5 g/d or less, and air at a pressure of 3 to 7 Kg/cm is injected perpendicularly to the yarn axis direction of the mixed fiber yarn in the mixed fiber processing nozzle. year,
A method for manufacturing a cut pile carpet, characterized in that the mixed fiber yarn is subjected to tufting and dyeing finishing after heating as it is or after heating. The dyed polyester filament fiber (A> refers to dyed polyester filament fiber (A>) used in the present invention. It is a thread-like dyed polyester filament yarn (including crimped polyester filament yarn). Factors related to the degree of mixing include the feeding direction of the yarn air turbulence nozzle, the number of feeds, overfeed rate (OF rate), air pressure, etc. On the other hand, undyed nylon BCF yarn is a multifilament yarn made of polyamides such as nylon 6°, nylon 66, or copolymers thereof, and is a polyamide wound yarn having three-dimensional non-helical crimp with random crimps. It is a curly thread.

The filament cross-sectional shape of each single yarn may be triangular, round, triangular hollow, etc., and the single yarn fineness is 10 to 40 denier.
The total fineness is preferably 500 to 2000 deniers. This undyed nylon BCF yarn is of the type dyeable to acid dyes (D, R), standard type (S, H), light dyed type <P), and type dyeable to cationic dyes (C,
Z), etc., and these may be used alone or in combination. Here D: Deep dyeable, Sem1 Br1
qhtR: , 3emi [)u
llS: Ac1dic 5 standard dye
able, semi-right)-1: Ac1dic 3 standard dye
able, 3emi[)ull P: Pa1e dyeable, 3emi
3rightC: Cation dyeable
, 3emi [rightZ: CatiOn
dyeable, 3emi [)ullNext, the method for mixing polyester filament dyed yarn and undyed nylon BCF yarn is to determine the elongation of the polyester dyed yarn or undyed nylon BCF yarn.

Since the crimp ratios are different, a two-fiber system in which each yarn is treated individually is preferable, and polyester dyed yarn requires an overfeed (0, F) of 0 to 10%. That is, polyester filament dyed yarn with low elongation has 0.8 to 10%.
However, the O and F content of spun-dyed polyester wool yarn may be 2 to 3%. In other words, 0.F has a large relationship with elongation. If there is a large variation in the amount, the blending will be poor or the polyester filament yarn will easily separate into large loops, so it is necessary to reduce the variation in the amount of yarn feeding as much as possible.One method is to send the yarn to the blending processing nozzle. The yarn feeding tension and overfeed rate are uniformly adjusted.

As shown in Table 1, the yarn feeding tension and fiber mixing degree of polyester filament dyeing are as follows: As the tension increases, the fiber mixing degree decreases and the occurrence of loop fuzz increases.

For loop carpets, the upper limit of the yarn feeding tension at which loop fluff does not occur on the loop pile surface is considered to be 0.03 g/d, but for cut pile carpets, the cut pile surface is formed by shearing at the dyeing and finishing factory, so it depends on the degree of fiber blending. The limit of yarn feeding tension can be raised up to 0.059/d.

Table 1 Overfeed rate - 0.45% Feed roller speed 450TrL/min Pneumatic pressure e) K9/cri In other methods, when feeding the yarn to the blending treatment nozzle, the nylon BCF yarn is passed from the creel to the feed roller as usual. The polyester dyed yarn is fed directly to the nozzle. At that time, the yarn feeding tension should be as small as possible,
In addition, excessive supply of polyester dyed yarn is controlled by the backflow of compressed air within the blending nozzle. In the case of this method, the degree of blending is increased, and even if the amount of nylon BCF yarn supplied varies, the polyester dyed yarn will not be excessively supplied, and therefore the polyester dyed yarn will not separate into loops. do not have. Furthermore, the strength of entanglement is maximum when the air is injected perpendicularly to the yarn axis direction, and as the air injection angle with respect to the yarn axis decreases, the entanglement becomes weaker. As mentioned earlier, if the mixed yarn is weakly intertwined, it will separate due to external factors such as tension and temperature applied to the mixed yarn after tufting, resulting in poor efficiency, quality, and
Quality is easily compromised.

The blending ratio of polyester fibers in the thus obtained mixed fiber yarn can be used in a wider range in the case of cut pile carpets than in loop pile carpets. That is, the polyester fiber blending rate in cut pile carpets is about 5 to 20%, but in the case of loop pile carpets, it can be increased to 5 to 30%.

The nylon ratio of the mixed yarn is 70 to 95%. When the polyester ratio exceeds 30%, the hue of the polyester becomes dominant, so that the hue density range of the resulting carpet becomes narrow and the characteristics of the physical properties of nylon (abrasion resistance, elasticity, etc.) decrease. That is, 30% of polyester/black dope yarn
%, even if a light hue is added to the nylon color, it will remain in the charcoal gray range, resulting in only a dark color scheme. 5
If it is less than %, it cannot fully fulfill its role as an effect yarn. When the number of mixed fiber yarns is approximately the same for nylon and polyester, the color difference between the mixed fiber portion and the non-mixed fiber portion becomes large, and a span-like color mixing effect is obtained. That is, nylon BCF
Although it depends on the size of the single yarn fineness of the yarn, it is usually preferably about 0.3 times to 2 times the number of polyester yarns. It is preferable to use single yarn fineness in the range of 1 to 5 deniers for polyester filament yarns and 10 to 40 deniers for nylon BCF yarns. Single yarn fineness of polyester filament yarn is 1.0
When the denier is less than 1 denier or more than 5 denier, a sufficient color mixing effect cannot be obtained.

The color mixing effect is largely influenced by the composition of the mixed yarn as well as the hue of the dyed polyester filament yarn and the dyed crimped polyamide filament yarn.The color difference ( ΔE)
It is desirable that the hue difference is 3.0 or more and the Munsell symbol is 10 or more. In addition, the multicolor effect of differential color cut pile carpet is also great. Note that the polyester filament dyed yarn can be made of not only one color but also a mixture of multiple colors or more, but it is necessary that at least one color satisfies the above conditions.

The air pressure during the blending process is preferably 3 to 7 K9/crA; outside this range, the degree of entanglement will decrease or it will be difficult to obtain a uniform blended yarn.

When the blended yarn of the colored polyester yarn and nylon BCF yarn obtained in this manner is used alone or as a double yarn, it is used as a single-twisted yarn or a plied yarn with another nylon BCF yarn, etc. It is used for pile yarn for hair,
Anti-dyeing process (nylon BC) to create the required hue as needed.
F-thread dyeing process), and a wide range of hues can be obtained economically in a short time.

<Effects of the Invention> The anti-dyed cut pile carpet, which uses a mixed fiber yarn of polyester filament dyed yarn and nylon BCF yarn produced by the method of the present invention as the pile yarn, has improved warp lines due to yarn turning and improved span resistance. This nylona BCF carpet has a mixed fiber part that exhibits a similar mixed fiber effect and a non-mixed fiber part that maximizes color contrast, and has high color fastness, durability, and abrasion resistance. In addition, by appropriately adjusting the blending ratio of polyester yarn, a wide range of hues can be produced.

It can be a carpet with contrast.

<Examples> Examples of the present invention will be described below, but the present invention is not particularly limited to these Examples.

Example 1 A regular type nylon 6 multifilament crimped yarn with a triangular cross section (S type: 1 eoo denier/84 filaments) was fed at a feeding tension of 0,069/d and a feeding speed of 4.
Polyester filament crimped yarn (semi-dull 75 denier/3
6 filaments) singly or in a row, the total fineness of beating shown in Table 1 and 0.029/d (partly for comparison, 0.
．． The nylon BCF yarn and the polyester woolly dyed yarn were passed through a mixing treatment nozzle with a feeding tension of 10 y/d), and the overfeed rate was -0.45% and the compressed air pressure was 6 to 9/cM (10 y/d). 2K9/ for comparison
The mixed fiber treatment was performed under the conditions cIi).

The six types of mixed fiber yarns obtained were used as pile yarns using a cut pile tufting machine, with a gauge of 1/10 inch,
Tufting was performed under the conditions of stitch count: 111/d inch and pile height: 8 mm.Then, the tufted fabric was dyed using a dye bath with the following recipe using a continuous dyeing machine, and then vapor deposition fixation treatment was applied to achieve a pick-up rate of 400%. ).

The performance of the obtained cut pile carpet is shown in Table 2 and d.
It was 3 yu.

Tectilon Yellow 4R (manufactured by Ciba Geigy) 0.10g/Ω Te1on Red FRI L O,
03n discharge 6 Bath temperature: 88°C Dyeing time: 5 minutes In other words, the cut pile carpet using the mixed fiber yarn of the present invention has a range of spun-like multicolored mixed fibers that could not be expressed with conventional anti-dyed carpets made of 100% nylon BCF yarn. A carpet with almost no warp defects and excellent texture and abrasion resistance was obtained.

Example 2 A cut pile carpet was produced in the same manner as in Example 1, except that the composition of the mixed fiber yarn and the color difference (ΔE) between 1ilI (A) and fibers (, B) were changed as shown in Table 3. It was created.

The evaluation results of the obtained cut pile carpet are also shown in Table 2.

Table 3

Claims (2)

[Claims] (1) Contains a dyed polyester filament fiber (A) with a single filament fineness of 1.0 to 5.0 deniers and a different dyed crimped polyamide filament fiber (B), and has a mixed fiber part and a non-mixed fiber part. A cut pile carpet comprising all or part of the cut pile yarn as a mixed fiber yarn having the following, and the cut pile yarn satisfying the following conditions (A) to (C). Number ratio: fiber (B)/fiber (A) 0.3
~2.0 (b) Mixing ratio: Fiber (B)/(Fiber (A) + Fiber (B)
) 0.70 to 0.95 (c) Hue difference between fiber (A) and fiber (B): color difference (ΔE
) is 3.0 or more (2) Claim (1) includes dyed polyester filament fibers other than fiber (A) and fiber (B)
Cut pile carpet (3) dyed polyester filament fibers (A) and crimped polyamide filament fibers (B) are blended in a blending treatment nozzle, and the resulting blended yarn is used as pile yarn. In the method for manufacturing cut pile carpet, the fibers (A) are directly supplied to the nozzle under a yarn tension of 0.05 g/d or less, and air is mixed at a pressure of 3 to 7 kg/cm^2 in the fiber mixing nozzle. A method for producing a cut pile carpet, which comprises spraying the fibers perpendicularly to the axis direction of the fibers to obtain a mixed fiber yarn, and subjecting the mixed fiber yarn as it is or after heating it to tufting and dyeing finishing.