DE2047686C3 - Synthetic composite thread with special dyeability - Google Patents

Description

dyes, basic dyes, acidic dyes, acidic mordant dyes, metallized acidic dyes, Mordant dyes, development dyes (azo dyes) and direct dyes Furthermore, in the case of polymers containing a metallic mordant compound, new types of Dyes are used which are called "chelate disperse dyes" be designated,

The polyesters usable for this invention can include modified polyesters those with > o basic dyes can be colored. Such with basic dyes, dyeable polyesters can be e.g. B. modified polyester, the at least one unit with one or more sulfonate groups in a lower proportion.

The polyamides usable for this invention can be modified polyamides, those with basic Dyes are dyeable and which contain a polymer component that is a homopolymer or Copolymer of an aromatic olefinic compound which has one or more sulfonic acid groups some of which form salts with an alkali metal or an alkaline earth metal can and the remaining part of the group can remain in acid form or the sulfonic acid group with ammonia and / or an amine can form a uniform or a mixed salt.

The polyolefins and polyesters useful for this invention can be modified polyolefins or polyolefins Be polyester, which are dyed with chelate disperse dyes, the polyolefins about 0.1 to about 5.0 weight percent of a higher fatty acid salt or chelate compound of

at least one transition metal such as nickel, cobr t, Contain zinc, chromium and copper. Such mot. Fixed polyolefins or polyesters can be mixed with the specific chelate disperse dyes with high Color fastness to be colored,

U.S. Patent 2,984,634 and U.S. Patent No. 2,984,634 Belgian patent 614776 is already a manufacturing process became known for modified polyolefins, which are a metal compound and which contain chelate disperse dyes,

The modified polyolefins which can be used for this invention can be prepared according to the method described in Italian Patent No. 587,008 and the methods described in Japanese Patent No. 18,574/1963 and can be dyed with pig dyes.

The embedding and island components of the invention The composite thread can contain matting agents such as titanium dioxide and silicic acid anhydride, an ultraviolet ray absorber, an anti-weathering agent and a heat stabilizing agent, respectively

It is necessary for the bandage thread according to the invention that the embedding component be transparent of 85% or more, so that the color effect of the colored insect components is fully visible will. The percentage transparency is determined according to the ASTM-D-1003-61 B method (1965) at the visible rays of 550 πιμ. be used.

In the case of the composite thread according to the invention with an island-like structure, it is also essential that the composite thread of embedded and island components is composed, which have mutually different Färbeigensdiaften.

table

Embedding component c polymer Content of
Color
absorption
stellPti *} ■ 2.0 ■ Type of
turned dye ] polymer island component .. type of ange
turned dye No. of
Station wagon
nation Polyester, col 2.0 1.5 Acid dye polyamide Content of
Farbibsorp ^ "*
tion points *) Acid dye 1 bar with acid 5.0 Dyes Nylon 66 4.0 Acid dye Nylon 6 Acid dye 2 Nylon 6 3.0 2.0 Acid dye Nylon 6 7.0 Acid dye 3 Polyester, col 1.0 Basic color Polyamide, col 12.0 Basic color 4th cash with material cash with 5.0 material basic basic Dyes 0.5 Dyes Polyesteramide Acid dye polyamide Acid dye 5 Polypropylene, Acid dye polyamide 8.0 Acid dye 6th colorable with 7.0 Acid color fabrics Polyamide, col Basic color Polyamide, col Basic color 7th cash with material cash with 7.0 material basic basic Dyes Dyes Polyester, col Basic color Polyester, col Basic color 8th cash with material cash with 6.0 material basic basic Dyes Dyes

*) Each ma! 1O- *

2 04 7 16 8 6

This essential requirement of the invention can be met in two ways, as will be described below; First of all, the composite thread according to the invention should be composed of an embedding component, which to a certain extent can be dyed with a certain kind or kinds of dyes, and island components, which are to a greater extent than the embedding component with the same kind or kinds of dyes as the embedding component are colorable.
In this case, it is advantageous if the island component polymer material has a proportion of color absorption ^{sites which is 2 -10 ~ 5} mol / g larger than the proportion of the embedding component polymer material. In Table 1 some examples of the various combinations of Polymermateri ^f are alien for the single and given the island component and the proportions of Farbabsorptionsstelien.

• The embedding and island components can be made from There are polymer mixtures which each have a content that differs by at least 2 · 10- * mol / g have at dye absorption sites.

The main requirement for the different Dyeability of the composite thread according to the invention can be met if the investment

nent and the island components are each dyeable with certain kinds of dyes different from each other are, and if they are suitable for the respective other component type of dye or the suitable coloring arenas are essentially not

can be colored.

Table 2 shows various combinations between the bed component polymer material and the island component polymer material.

table

Station wagon
nation EinbeUkompcmente Applied dye juice Island component Applied type of dye No. Polymer components Acid dye Polymer component Basic dye 1 polyamide Polyester, can be dyed with Disperse dye basic dyes Chelate dispersion 2 polyester Polyester, a metal dye connection ent Disperse dye holding Spun-dyed 3 polyester Chelate dispersion polyamide Disperse dye 4th Polypropylene, one dye polyester Metal connection containing Basic dye Spun-dyed 5 Polyamide, can be dyed with Polypropylene basic dyes None Disperse dye 6th Polypropylene Metallized acid polyamide Acid dye 7th polyamide dye Polypropylene, dyeable Acid dye with acid dye Chelate dispersion 8th Polypropylene, dyeable Polypropylene, one color drinker with acid dyes Metal connection Basic dye containing Spun-dyed 9 Polyamide, can be dyed with polyester basic dyes Acid dye Spun-dyed 10 Polyester, can be dyed with Polypropylene Acid dyes

The island components of the Verbu ldfadens according to the invention can by suitable choice of the Spinnvo direction produced in the desired distribution with the desired titer and the desired number will. This is a great advantage of this invention in view of the fact that composite spinning at a ratio of the dispersion component, based on the dispersed component, between 40:60 to 60:40 is unstable and that the quality of the composite thread so spun is uneven.

In view of the aforementioned coloring effects and color fastness, it is preferable that the island components of the composite thread according to the invention with respect to the cross-section of this thread in the first line are arranged distributed in the outer area.

If the island component is made of a polymer exists, which has a great affinity for the dye used and consumes it to a high degree, the number of island components is said to be 40 or more in order to obtain great uniformity of the To get coloring.

By forming the embedding component and the island components from polymers, the different Have elasticities, the island-like composite thread can be given better stiffness or softness, than is the case with the conventional covered core type composite filament. Is the The elasticity of the island component is greater than that of the embedding component, then the one obtained according to the invention Composite thread has a greater rigidity than the conventional type of composite thread enveloped core, with eggs the core and shell components each made of the same polymer as the island

and embedding component and the ratio of the cross-sectional area of the core component, based to that of the shell component, is the same as that of the island components, based on the embedding component.

If, on the other hand, the elasticity of the island component is less than the elasticity of the embedding component, then this has the consequence that the island-like composite thread has a greater softness than the conventional one Covered core type composite filament.

The invention is explained using the following example:

example

An island-like composite thread bundle of 50 denier / 24 single threads was obtained by melt spinning 50 parts by weight of a nylon 66 polymer for the embedding component and 50 parts by weight a nylon 6 polymer for the island component at a temperature of 285 ° C and by stretching of the melt-spun composite yarn with a draw ratio of 3.4.

The nylon 66 polymer of the embedding component had a terminal amino radical content of 4.5 × 10 " ⁸ mol / g and a transparency of as 89.1%; the nylon 6 polymer of the island component had a terminal amino radical content of 6.5 × 10 ^-6 mol / g. the composite yarn thus obtained comprised forty island components that were arranged distributed in the peripheral portion of the composite yarn.

For comparison, a sheathed core type composite thread bundle (comparative example) of 50 dcn / 24 individual threads made from the same polymers as those of the aforementioned composite thread bundle with island-like construction. The so-

sheathed core type composite suture comprised a nylon 6 core component which is concentric was embedded in a nylon 66 sheath component.

Tubular knitted fabrics were produced from the thread yarns. The knitted fabrics were dyed under the following conditions.
^l ~ color composition:

Irganol yellow 4 GL (* 1) .... 1.5% of the thread weight. Xylene real blue PR (* 2) 3.0% of the thread weight.

CH ₃ COOH 1.0% of the thread weight.

Liquid ratio 1: 100

Temperature 100 ⁰ C

Time 60 minutes

Note: (♦) Trade name of an acid dyes. * ;.
(·) Acid dye.

The dyed knitted fabrics were then washed in hot water, rinsed with cold water and dried at room temperature. The resulting dyed knitted fabrics of this example and the comparative example were subjected to a color fastness test. The results are shown in Table 3.

Table 3

Mixing ratio by weight of the embedding components to the
Island components

Uniformity of the
dyed fabric

example

1: 1

sufficient
evenly

Comparative example

1: 1

insufficient
evenly

For this purpose 4 sheets of drawings 409 639/311

Claims (1)

1 2 f » \ With regard to a large optical permeability '^; The ^{patentability of the} colored embedding components is intended to ^p 'bed component versus acidic and / or basic s dyes have a high affinity. So that Ϊ Synthetic composite thread with special coloring 5 embedding component and the insectic component one \ availability with an island component, which should have different colorability, should the Form of at least ten thread-like one-insi-component have an affinity for dyes, other independently in the longitudinal direction of the composite the embedding component is essentially non-thread-running structures, and can dye with or at least not to the same extent. an embedding component which is one of the island io The invention is explained in more detail below with reference to component different colorability in several figures, it shows
sits and which embeds the island component, that Fi g. 1A and IB, 2A to 2G, 3A to 3N and 4A characterized in that the single to 41 cross sections of the composite bed component according to the invention are at least 85% transparent, is present, 15 F i g. 5 is a side view of the invention Composite thread,
Fig. 6A to 6E cross sections of the invention according to the composite thread according to FIG. 5. In Figures IA and IB are cross sections of the 30 composite thread shown with an island-like structure. The island components 2 each have the same The invention relates to a synthetic size and are essentially evenly distributed in the embedding component 1 in the bundle thread, which is particularly dyeable with an island. In the case of the outcomponent, which is in the form of at least ten guide form according to FIG. On the other hand, with the design and with an embedding component that has a shape according to FIG. 1B, the thread on the surface of the island component Bevon different Anfärb--sensitive island components 2a partially exposed wähbarkeit owns and embedding the Inseikomponente. rend other island components 2b completely in the Composite threads of this type are embedded through the French bed component 1. ϊ Patent 1,513,531 became known. They assign the F i g. 2A to 2G 7 different transverse Compared to mixed threads and composite threads with sections of the composite thread with an island-like structure, enveloped core advantages in terms of elasticity, in which the island components 2 are each the same Strength, curl ability, etc. Is the material sized and in the embedding component 1 J the island component of which the embedding component 35 are unevenly distributed. selected differently, the two components have. In the embodiment according to FIG As a rule, numerous island components of the same size can also be colored differently on. in an embedding component of a hollow fiber im It is, for example, arranged in a substantially more evenly distributed manner through the book by R. H i 11.
"Synthetic polymer fiber", 1956, p 440, 40 In the embodiment of FIG. 3B are distributed to become known transparent threads or island components in an irregularly shaped {yarns with other optical properties herzu- Einbettkomponente arranged at put. Cross-sections of the ¹ F i g. 3C to 31 and 4A to 4J The invention is based on the object, threads are three or more components i, ία, ib, 2,2a, 2b, with particular dyeability or iridescent 45 3, 4, 5 contain. To create a color effect that has a great color fastness. 5 and 6A to 6E is a further possess speed and uniformity. The composite thread guide form the. composite thread according to the invention should show a special depth of color or a dazzling one. The F i g. 6 A to 6 E show cross-sections I lish or speckled color. of the composite thread with an island-like structure According to the invention, the object is achieved by 50 F i g. 5 along the lines AA, BB, CC, DD, EE. \ that the embedding component is at least 85% in the case of the in FIG. 5 are composite thread shown ^{: available} transparently. 14 island components 2 in the lower part of the embedding Due to the high transparency of the embedding component I, it is arranged in an unevenly distributed manner. As component is the color of the colored island compo- in FIG. 6 A to 6 E shown, vary in longitudinal nente clearly visible. If the transparent embedding direction of the thread becomes that in embedding component 1 component with the same color as the island-embedded island components 2 periodically added component colored, then the composite thread clearly has its position. a deep shade. If the transparent single bed and island components of the invention component colored with a hue that is different from the corresponding composite ^thread made of homopolymers of the island component, then the 6o or copolymers of polyamides, such as Polycapro composite thread, have a mixed color or /. a speckled lactam, polyhexamethylene sebazinaimd, poly-m-xyl oil paint. In all cases, the visible adipamide and polyhexamethylene adipic acid make the color of the colored island component amide isophthalamide, polyesters such as polyethylene and the dependence of the observed color on terephthalate and polyolefins such as polyethylene and the observation angle a special iridescent ⁶ 5 polypropylene are produced .
Color effect achieved. It is essential that the island components and the embedding components component consists of at least ten individual threads, riente of the composite thread according to the invention can so that a sufficiently large colored area is obtained. with the conventional dyes such as dispersion