EP0093733A1 - Pigment anatase post-traite et son utilisation - Google Patents

Pigment anatase post-traite et son utilisation

Info

Publication number
EP0093733A1
EP0093733A1 EP19820903231 EP82903231A EP0093733A1 EP 0093733 A1 EP0093733 A1 EP 0093733A1 EP 19820903231 EP19820903231 EP 19820903231 EP 82903231 A EP82903231 A EP 82903231A EP 0093733 A1 EP0093733 A1 EP 0093733A1
Authority
EP
European Patent Office
Prior art keywords
anatase
aftertreated
pigment
anatase pigment
post
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP19820903231
Other languages
German (de)
English (en)
Inventor
Erwin Lerch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Viscosuisse SA
Original Assignee
Viscosuisse SA
Societe de la Viscose Suisse SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Viscosuisse SA, Societe de la Viscose Suisse SA filed Critical Viscosuisse SA
Publication of EP0093733A1 publication Critical patent/EP0093733A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3653—Treatment with inorganic compounds
    • C09C1/3661—Coating

Definitions

  • the invention relates to an aftertreated anatase pigment and its use for matting synthetic fibers, in particular polyamide fibers.
  • synthetic fibers are known to be matted with titanium dioxide pigments.
  • titanium dioxide pigments Despite the higher refractive index and the lack of a catalytic effect on photooxidation e.g. of polyamide fibers, rutile pigments are hardly used for matting synthetic fibers, since the thread-guiding elements are damaged too quickly by their pronounced abrasion effect.
  • natas pigments are used, which are characterized by a considerably lower abrasion effect than rutile pigments, which result in a bluish white due to the stronger remission of the blue-violet light (a property that can be emphasized by the smaller crystal size) and due to the considerably smaller absorption of anatase in the long-wave compared to rutile UV range does not affect the fluorescence excitation of the optical brighteners.
  • light stabilizers such as manganese compounds
  • suitable manganese compounds in appropriate concentrations, which are generally adapted to the respective degree of matting, even in the case of deep matt fibers, the matting pigment can no longer impair the light stability of the fibers.
  • Such light stabilizers based on manganese can, however, be partially or completely washed out in wet finishing operations such as washing out, dyeing, etc., as a result of which the light stability of the polyamide fibers suffers considerable losses.
  • an increase in the manganese concentration in matted polyamide fibers can have an unpleasant impact on their whiteness, which sometimes only becomes noticeable after finishing operations such as hot air fixing, alkaline washes, etc.
  • DE-AS 12 02 422 relates to a titanium dioxide pigment with a small amount of an insoluble water-containing zirconium phosphate to improve the chalk resistance of coloring, enamel and lacquer films.
  • FR Patent 2,206,363 and EP Patent 0 008 101 further relate to a process for producing zirconium-containing titanium dioxide pigments with improved resistance to chalking and gloss retention by striking a zirconium compound and aluminum and / or silicon compounds on the titanium dioxide pigment.
  • Such anti-yellowing formulations are generally additive mixtures which are used in particular for deep matt polyamide fibers and reduce the yellowing of the polyamide when hot-air-fixing textile fabrics and in use.
  • the effect of such yellowing or At least for the hot air fixation of deep matt polyamide 66 fibers, the use of post-treated anatase pigments of the type mentioned can almost completely eliminate oxidation protection systems.
  • the invention relates to an aftertreated anatase pigment which contains a precipitated zirconium phosphate compound with a molar ratio P: Zr between 2: 1 and 1: 1.
  • This pigment is particularly suitable for matting synthetic fibers, preferably polyamide fibers.
  • the composition of the zirconium phosphate compound precipitated on the anatase pigment corresponds to the following general formula (ZrO) X H Y P 2 O Z , in which l ⁇ x ⁇ 2, y> 2 and z> 7. Particular preference is given to the composition (ZrO) with zirconium phosphate compound H 2 P 2 O 7 post-treated anatase pigments.
  • the product according to the invention contains 0.5 to 10%, preferably 2 to 6%, of the zirconium phosphate compound, the water content in the product which can be driven off by annealing at 800 ° C. generally making up no more than 10% of the amount of zirconium phosphate contained therein.
  • the TiO 2 pigment can additionally contain 1000 to 3000 ppm Mn from a manganese compound which has also been precipitated.
  • the invention further relates to the use of this post-treated anatase pigment for matting synthetic fibers, in particular polyamide fibers.
  • Anate pigments aftertreated with zirconium phosphates allow the preparation of aqueous suspensions in the exact same and known manner as is the case with untreated types of anatas.
  • a particularly salient property of the products according to the invention is their absolute compatibility with anti-yellowing additives in deep matt polyamide fibers, with an increase in the anti-yellowing effect when hot air being fixed compared to the comparison product with untreated anatase being observed.
  • aftertreated anatase pigments instead of untreated anatase types, a significantly increased light resistance is achieved in polyamide 66 yarns with the same manganese concentration and, surprisingly, the lightfastness of dyeings is also considerably improved.
  • the polymer contains 0.02 to 20% and the finished thread 0.02 to 3% of the post-treated anatase pigment.
  • the parts mean parts by mass and, in the case of concentrations, the percentages always mean percentages by mass.
  • the procedure was as follows: The amounts of tetrasodium diphosphate and zirconium oxide chloride listed in the above post-treatment example Precipitation in the absence of TiO 2 was carried out in exactly the same way, the precipitated zirconium phosphate was filtered off, washed free of chloride and dried at 120 ° C. to constant weight.
  • the product according to the invention behaves exactly the same as the untreated anatase pigment used as the starting material in the known “4-hour test” and in the production of a 25% aqueous allspice suspension.
  • Table 1 is based on the reflectance measurements on pressed powder samples of the product according to the invention, the untreated starting material and on two commercially available, conventionally aftertreated anatase pigments (both free of manganese).
  • the manganese salt was mixed with the 50% aqueous hexamethylene diammonium adipate solution and the respective matting agent in the form of a 25% aqueous suspension was introduced into the autoclave 30 minutes after the pressure of 18 bar had been reached.
  • the three polyamides A, B and C differ only in the type of matting agent used. It contained:
  • Variant A 1.9% of an inventive, with 4%
  • Variant B 1.9% of a commercially available untreated
  • Anataspigments (it is the same type that was used to manufacture the product according to the invention)
  • Variant C 1.9% of a commercial manganese-free anatase pigment, not according to the invention and aftertreated with aluminum and silicon compounds, with a TiO 2 content of approx. 95%. Microscopic examination of 6 ⁇ m thick cross sections of the polymer strand showed the most uniform and finest pigment distribution in the case of variant A.
  • Threads having a titer of 44 dtex and consisting of 13 individual fibrils were produced from the polyamide A produced with the product according to the invention and from the polyamides B and C used for comparison purposes by melt spinning and subsequent stretching. Circular hoses were made from the three types of thread.
  • the percentage loss of tensile strength of the three thread types after 300 h exposure was determined in the XENOTEST device type 450.
  • the knitted fabrics of the three types of thread, which had been heat-set were washed out in air at 210 ° C. for 20 s and dyed in the usual way with 0.3% Lanasyn Pure Red RL.
  • the color-light fastness of the dyed knitted fabrics was determined in accordance with SNV regulation No. 195'809 determined (xenon arc light).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Artificial Filaments (AREA)

Abstract

Ce pigment anatase contient un composé phosphaté du zirconium; ce dernier est appliqué par précipitation et présente une relation molaire du P au Zr se situant entre 2:1 et 1:1. Le composé phosphaté du zirconium satisfait à la formule générale (ZrO)xHyP2Oz, dans laquelle valent 1 <= x <= 2, z >= 2 et z >=7.
EP19820903231 1981-11-19 1982-11-15 Pigment anatase post-traite et son utilisation Ceased EP0093733A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7428/81 1981-11-19
CH742881 1981-11-19

Publications (1)

Publication Number Publication Date
EP0093733A1 true EP0093733A1 (fr) 1983-11-16

Family

ID=4324981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820903231 Ceased EP0093733A1 (fr) 1981-11-19 1982-11-15 Pigment anatase post-traite et son utilisation

Country Status (2)

Country Link
EP (1) EP0093733A1 (fr)
WO (1) WO1983001780A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011286A1 (fr) * 1991-12-04 1993-06-10 Allied-Signal Inc. Polymere mate par le dioxyde de titane anatase et dote d'une photostabilite amelioree
CN110511598B (zh) * 2019-09-02 2020-09-01 中东金润新材料有限公司 一种高耐晒造纸专用二氧化钛生产工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2099019A (en) * 1934-05-02 1937-11-16 Titanium Alloy Mfg Co Pigments and methods of making same
NL298822A (fr) * 1962-10-05
DE2255826C3 (de) * 1972-11-15 1980-10-02 Bayer Ag, 5090 Leverkusen Herstellung von nicht nachcalcinierten Titandioxidpigmenten mit hoher Vergrauungsstabilität für Harzkompositionen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8301780A1 *

Also Published As

Publication number Publication date
WO1983001780A1 (fr) 1983-05-26

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19830930

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Inventor name: LERCH, ERWIN