DE1904876A1 - Bicomponent thread - Google Patents

Description

PATENT LAWYERS

DR.-INQ. H. FINCKE DIPL.-ING. H. BOHR DIPL-ING. S. STAEGER

Telephone: * 26 6060

8 MUNICH 5, Müllerstrasse 31

3 JAN.

Folder 21847 - Dr.X / H IGX Case Ho ₀ FC 20810

DESCRIPTION for the patent application of IMPERIAL OHEMIOAIj IKDÜSOJEIES LIMISED ₈ Lonäon SW1 /

. toetreeffend s

"Zweilcoispon 3irben £ ad en "

PRI0RJ2Ä2: February 1, 1968 - GHOSSBEÜDAMIBN

The invention relates in particular to those vnä 2 on Zweikomponeiräenfädexi \? _S eiko3aponentetifäden used in Sextilatoffen that are prone to rapid contamination, such as leppiche, and in which one component is at least one polyamide "

909837/1401

Eb is known, poly (a v] ^ Xen $ th9?) - to use gly] cole in polyamide threads to certain j r whether to eliminate learn that with the development of static Blektisität under the conditions he sin succeed? Moisture in textiles are connected, such as 3 »B ₀ bsi atark stressed clothes and carpets. The above-mentioned glycols cause any static charges away that may arise during the stress _o It is also known, a rope of the glycols from the 2? Aeden for example, by one purification treatment au extract Waue to form VW elongated cavities or pores mn characterized satisfactory To achieve opacity.

If Έ & άβη of the latter kind are used in textiles, which are compressed during use, such as a "B _e carpets, these threads aeigen a beaerkensv / ei? U" ü loss of opacity caused by the fact that 2ttsammenfallen under pressure di @ pores _O

it has now been found that the loss of opacity is considerably reduced if the three threads are used as a core / shell " Bicomponent threads are spun in which the casings? or core part consists only of a polyamide that is up to 30 wt. # Of a poly (alkylene ether) glycol contains, and the other component is composed of a polymer, which is a Matting agents, such as a.B »TiOg, preferably in one Amount of at least 0.6 ßew "- £, contains, and a

809837 / U01

=. 3 ■ "

tvächtllche? The rope of the glycols has been removed by cleaning, for example, as in the case of the well-known loading. The presence of the IiO ₂ in the tall dee thread, which contains no poly-alkylene ether glycol, reduces the loss of opacity, if the Threads are compressed together, and as a result of the cavity system formed by the removal of part of the glycol from the other component, the yarn has no chalky appearance; as is normally observed with yarns containing relatively large amounts of DiO ₂ . The presence of TiO ₂ in the non-glycol containing component does not significantly reduce the attractive optical properties of the 3? Aden resulting from the light reflected by the pores.

Thus, according to the invention, a sheath / core two-component thread is first proposed, which is characterized in that one component consists of a synthetic melt-spinnable polymer with a content of a matting agent and the other component consists of a synthetic melt-spinnable polymer which is a polyamide with a content of is not more than 30 wt .- ^ of a poly (alkylene ether) glycol having not less than 2 carbon atoms in the alkylene group and a molecular weight of at least 600, said glycol being evenly distributed therethrough.

909837 / U01

A «

In accordance with the invention, there is also a
ponentenfaßen beaten to death, which is characterized in that a Ftsaponente from a synthetic
spitmfcarsn Poller Biit a salary bm a
tel and di® other Konipoiieniie from eiiiesi synthetic
scliiaelzspinnbaren polymer consists «© in which Polyaiäii with a Sehalt ininäestens of 1 part by weight fä © ines ΈΌ Iy- (alkyl®näther) -glycols ait not less than 2 carbon atoms in the alkylene group Oer UNAE © Ineia molecular weight ύόπ aiinäestens 600, said Glycol uniformly thereby changes
and the other component is a series of narrow elongated pores distributed therein,

The polymeric components are preferably adhesive, namely
either due to their properties or ¹ due to added substances. The component containing the matting agent preferably contains at least 0.6% matting agent. SiO ₂ * and is a fiber-forming polymer, preferably the same polyamide as the _{component Ie containing the 3-ol t} y-Calkylenä1; her) glycol-containing
It is further preferred that the dating agent © xr-aialtend® component forms the core part of the two-component fiber «

The polyamiäkoniponente is ^ oraugewolse

Upper Polyepsilcneaprolaotam ,, nnä the B © Iy- (alkyl

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äth © r) ~ glycol lot preferred white © Polyo ^ äthyleaglykol oäar Polyoxypropylene glycol.

Up to the invention "also relates to a process for: ·. ¹ Production of the above-defined Sweikoaiponent &'nfädon» Elches is characterized in that s? An SjQiiiaelsgemioeh from a polyamide and 5 Ma 30 ίϊ-ew · - ^ a poly-falkylene ether) -Glylcols Jüit not wen: lg @ r as 2 carbon atoms in the Alkjl © ngruppe and a molecular weight of at least 600 and this polymer is spun as a component of a garbage / grain Zveikoispöneiitenfadens, the other component consists of © inesn melt-spinnable polymer contains a fatty agent, before only a part of the glycol is removed by an aqueous extraction of the "/ extended pa",

The invention is explained in more detail in the following examples, in which all ropes and Proasnt information in weight are pressed, unless otherwise indicated.

B e i s ρ i el 1

A 2700 denier yarn made from 69 two-component threads with a circular cross-section and a ratio of Hülles Core of 50:50 was made at a speed of

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381 m / m ± n. imtes? ¥ © rwencirag ü @ b in & © £> British patent ■. "Font". 1 100 430 b © setei @ fe®a @ i3i Apparates spun · - Di © Kernkottiponente -Stock! © .ns Bslyhgsaasetbyiemäipamid with .ei new weight of 1 § "! EiO" and had -a, relative viscosity of 38β Ms garbage component consisted of a- Sclmaelsg® = · miseli of 93 -ieilen Polyhe3cain @ tljl © sis> iip9fflid with a® ? 3? tive "viscosity of 45 and? ^ © il @ n Poiyosyäthylenglyk®! - ■" with "one" molecular weight of 20,000 and from-0 »035 rope 2.2" Hetliyl @ n «bis-4-iiietiiyl- = 6 = (1-methylcyclohezyl) -phenol _? ■ - ■ which is commercially available as ITonox. V / »S.? _O. "

The yarn was cold drawn to 3 "7 times its original length. To produce an oriented yarn with a fiter of 781 denier, a hot strength of 3" 86 g / denier, an elongation at _{break of 42 seconds} .

The appearance of a thread of the drawn yarn is shown in Fig-e ■ 1 silted. The core containing TiOg distinguishes sisli from the glycol-containing shell component _e

The yarn was cleaned in boiling water for 20 minutes. The resulting yarn had a "noticeably increased" opacity, which was caused by the formation of pores in the shell part, which were caused by the extraction of a rope of the glycol The appearance of a thread of yarn after "cleaning."

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_is-illustrated in Fig. 1A. The appearance is'

B © _ ± SJP ie 1 2 . _:

3} as -from method of example 1 Wurd © wiederholt-, under "difference ρ that the Kerakoiöponente contained 0.6 $ SiOg with the" The Yerstrcekt © yarn had a tenacity Yoü 4 g / flea unui © ine Beißetetarang 28.4 ^. Sweet would be 20 minutes in the simmer ». Washed your water, a yarn with a slightly lower opacity than that of Example 1 would be obtained.

Bei Piel 3 (Vergleidhsbeispiel)

A 3650 äen yarn made of 68 circular "strands was spun at a speed of 24 & m / min from a polymer containing 92 ropes -PolyhexaraethyleneadipaiHid, 8 ropes poly- (oxyethylene) -glycol wnö 0.04 leagues ITonox ¥, S, p _O; consisted of "Baa Sana wisrcle stretched to J ₉ 7 times its" original length, with a transparent - oriented "yarn of a" SJiter of 1016 den ", a tensile strength of -3.06 g / .. öen and one Eeißdehnung 40.3 55 'get-yarn was vrarde 20 minutes in boiling water cleaned imae dried Bas resulting yarn had a ^{weißes.opakes:} shiny appearance, and awar due to formation of :.

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ils aera fad ess dwell Extraction of a Seilee des Glykole «,

Di © Figures 2 and 2A show the appearance of a thread of the stretched yarn before and after cleaning »

The leak tightness of individual threads of the cleaned yarns of the above examples, which were illuminated essentially perpendicular to the axis of the fibers, became microacopic. a photoselle in place of the eye piece and a diaphragm in the image plane determined to eliminate the greatest! bearing of the scattered light and to limit the field of view to the central part of the pad. The mean values of 10 measurements were taken.

A second row of threads from the two yarns was pressed ₉ until their cross-sections had the shape of a flattened ellipse, which had a thickness of 25 / rev, in order to simulate the effect of the compression of the textile fabric during use measured in such a way that the 'illumination ran normally along the longer axis of the flattened ellipses © "S ¹ Ur ^: Vergl © i © hss &wecke" was the ■ permeability of an unmatted 15'den "Pol ^ h.exame"& yl.enadipainidfadens- also measured «-The he ~ · .SUl-ts ies?

specified. - ^; ". ■ '-.'.

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example Permeability of
cleaned pads, $ on 25 Μ susain quantity-
press-i /,. ■ ". 1 before squeezing 43 2 4.7. 55 3 .9.5 ' , 74 HyXon-
6, -6
(glittering) 2.5 97 '. ■ ■. 94.0

The table shows that after pressing together the two-component game a much higher degree of opacity than Consequence of the presence of the Siüg-Mattiermigsiümittel iti der Maintain core component.

Figures 1B and 2B illustrate the -'Aussehen a filament of the yarns of Examples 1 and 3 after the 2ta8aamendrücken _o The threads IB is considerably more opaque than the yarn 2B "The degree of opacity is similar to that of the thread before cleaning similar.

The incorporation of the

in the core is particularly

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.participates ¹ , / da. as a result <§ ± m® gp? §§ © 2? @ opacity for a nes ß-ewieben. Matting agent, © raielt wircL

A 36f? O. den-yarn made of 69 5Ö / 50 ~ BUlle / lfern ~ Zweikö ^ oiientett-v ■ threads.-old. Kreisföwaigem Q «'© rsclinitt vrard © with a Qe speed of 275" 5 n0nin.-using ü®s in Äer. British patent specification 1 100 430 described @ B Apparates spun »The core component consisted of polyhexamethylene * '-. ~ adipamiä, - which contained 1 ^! ifiOg and had a relative viscosity of -45 and - the steering component consisted of a SchjnelzgeiBiecli of 93 parts of polyhexamethylene adipamiä with a relative viscosity of -45 and 7 parts of polyoxyethylene glycol with a molecular weight of 20-0ÖO.unä - from 0.035 ropes. S ^^ - Sri-C ^ -inethyl- ^ hydroasy ^ S-terto phenyl) «butane -» - that under the ¥ arenK © ieh @ n Sopanol CA

- will be bought «-. .- ■■■ .-. - ' . . "

Sas Q & vri was tripped to 3 p 7 times its origin] The obtained was _β This was processed into a carpet xa with loop pile _f '. Samples of the same were finished in the following ways

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- 11 - ■ _ ■ _

(a) -I he .teppich was purified (on a primary plucking pad) for 60 minutes at 9O ⁰ C in a solution containing 1 ml / l Llssapol ET (surfactant% 1 g / l soda ash unfl 1, contained 5 g / l Katriumperborat «, After careful rinsing and drying, a second plucking layer © was applied with the help of a latex adhesive · ■ '-: - ^: " ..- ■: .--. · ■

(b) SJeppich was given the following dye concentration in a dye bath Mt. colored? lylosaine tellow AG 0.3 #, Mylomine Blue AG 0.005 ^ ₅ , HylpmiueRed A2B 0.015 ^. Sas bath also contained 3 * f _s and its pH Ammoniuinacetat ¥ ert was between 5.5 and 6.5. The Seppieh was left in the bath for 60 minutes at 95 ° G, a liquid ratio of 40% being used.

(c) The Sepp I was colored brown in a bath which had a similar composition to that of Example (fo), with the difference that the dye concentrations. were as follows: KTylomine Yellow AG 3.2 '$, Hylomine Blue AG 0 »2? $ ■ and Hylomine Bed A2B 0.6 fä» Ss were as with Brobe _: (b) rinsed, dried and under-

lays, ".-""" ■ ■. . _r .- "

09837 / UO 1

T90A8 76

3 e_is p ie 1 5 -; ■. ■ _ ".-.

A 3650 ösn yarn of 69 2weiküaipcraente * rtfä & en with circular cross-section imväs by Sas Verfatosfi from Example 4 In the dioeeia trap, however, the core and shell components were identical with regard to the addition and consisted of * 96 »Sr ropes polyhexamethylene ad f * SiOg and had a relative viscosity of 4-5, and from 3.5 ropes of polyoxyethylene glycol with a molecular weight of 20,000 and 0.0175 parts of Sopanbl CA ₀ The resulting polyaramid threads contained these three additives the entire © structure evenly distributed _o the roofing, stretching, curling and the production of Sextile fabric and finishing were made using this yarn in the same way as in example

4 is described, executed

B 8- is ρ i e 1 6

A 5650 denier yarn that made $ 6
-.nentenfäden'mit a circular cross-section consisted j was spun by the method of Example 4. The core component was a Schiaelsgefflisch made of 93 ropes of poly-hexamethylene adipawid with a relative viscosity of 45 and of 7 ropes of polyoxyethylene glycol with a molecular weight

9098377 UOl

large weight of 20 000 as well as from O _9,055 ropes Sopanol oil "The sheath component consisted of Polyhe: mffiethylenadipäiaid containing 1 i * OJiOg and had a relative viscosity of the 45th ■. _ ^:

Sa's yarn was plied, stretched, and puckered, and the The manufacture and completion of the Seppieh were carried out as in Example 4 carried out.

2 electrical resistance of carpet samples that are based on the different colors were dyed according to Examples 4, 5 and 6 were measured and the results are given in the following table

Example Mr. ₀ Resistance of the carpet in units
of 10 ¹⁰ ohms yellow
colored Brown
colored 4th
5
6th
comparison White
(cleaned) 2.0
2.2-
2.7
15th 0.71
1.4
0.94
18th 2.8
5.1
12th
50

90 9 83 7/1401

BIe -Terglsichsprobe was ® ± m Seppleh, which consists of a. Jfylon-ββ-yarn was produced> ä & s 0.2 ^ fiOg contained and had a three-lobed cross-section. The appearance of the samples was determined by .1.0 observers who were asked individually about the appearance of the above colored feppioh.e. " By. "<di0- observers met © Siexs' plague positions were _Ρ that samples 4 and 6 had the most attractive appearance _s because they were lighter and less chalky than., the carpet from example 5j although they were not so shiny, -.as the-.' Comparison 'sampleo

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Claims (1)

■ ^ΡΑΪΕ NgA HS PR Q CH E: m . J Cases / Kera bicomponent yarn "in which a component of a synthetic polymer consists schmelBspinnbaren with a content of a matting agent in .dadurch _r that the other component is a polyamide which is not more than 30" Gevr .. ^ a poly (alkylene ether ) glycols having not less than 2 carbon atoms in the alkylene group and a molecular weight * of at least 600, said glycol being uniformly distributed therethrough. 8. Sheath / core two-component thread, in which one component is a synthetic melt-spinnable polymer with a content of a matting agent, characterized in that the other component consists of a synthetic melt-spinnable polymer which is a polyamide with a content of at least 1 wt a poly (alkylene ether) glycol having not less than 2 carbon atoms in the alkylene group and a molecular weight of at least 600, the glycol being uniformly distributed therethrough and the other component having a series of narrow elongated pores _f distributed therein. 909837 / HOT 3. Zweikoiaponentenfaden according to claim 1 or 2, characterized characterized in that the matting agent containing Component is a polyamide. . . 4. Two-component thread according to claim 3 _P, characterized in that the polyamide is the same as that which contains the poly (alkylene ether) glycol » ^J 5. Two-component thread according to one of the preceding claims, characterized in that the component containing the matting agent contains at least 0.6 * f » matting agent. 6. A method for producing a two-component thread according to claim 2, characterized in that a melt mixture of a polyamide and 5 to 30 wt .- 5 $ of a poly (alkylene ether) glycol with not less than 2 carbon atoms in the Alkylengragp © and a molecular weight of at least 600 and this polymer is spun as one component of a sheath / core bicomponent thread, the other component being a melt-spinnable polymer containing a matting agent, whereupon only a portion of the glycol is obtained by aqueous extraction of the ^ / extended thread Will get removed. 909837 / U01 "( _Ψ Method according to claim 6, characterized in that the GlyKoI is removed during a cleaning or aqueous Waachyorganges. PATENT AKWXL TE 9E.-IN «HFUKiE: DIPL-IN6.m0m 837/1 V / L e r s e i t e