US-12624241-B2 - Ink-jet treatment liquid, ink-jet textile printing device, and ink-jet textile printing method

Abstract

An inkjet treatment liquid includes emulsified particles containing a silicone oil and an aqueous medium, in which the silicone oil includes an ionic functional group-containing silicone oil and an unmodified silicone oil.

Inventors

• Jun HIOKI

Assignees

• KYOCERA CORPORATION

Dates

Publication Date

20260512

Application Date

20220830

Priority Date

20210907

Claims (12)

1. 1 . An inkjet treatment liquid, comprising: emulsified particles containing silicone oils; and an aqueous medium, wherein the silicone oils include an ionic functional group-containing silicone oil and an unmodified silicone oil, the inkjet treatment liquid is a treatment liquid for processing, and a functional group equivalent of the ionic functional group-containing silicone oil is 1000 g/mol or more and 4000 g/mol or less.
2. 2 . The inkjet treatment liquid according to claim 1 , wherein the emulsified particles include first emulsified particles containing the ionic functional group-containing silicone oil and second emulsified particles containing the unmodified silicone oil.
3. 3 . The inkjet treatment liquid according to claim 1 , wherein the emulsified particles include third emulsified particles containing both the ionic functional group-containing silicone oil and the unmodified silicone oil.
4. 4 . The inkjet treatment liquid according to claim 1 , wherein a content ratio of the unmodified silicone oil to the ionic functional group-containing silicone oil in the inkjet treatment liquid is 0.33 or more and 1 or less.
5. 5 . An inkjet treatment liquid, comprising: emulsified particles containing silicone oils; and an aqueous medium, wherein the silicone oils include an ionic functional group-containing silicone oil and an unmodified silicone oil, the inkjet treatment liquid is a treatment liquid for processing, a functional group equivalent of the ionic functional group-containing silicone oil is 1000 g/mol or more and 5500 g/mol or less, and the ionic functional group-containing silicone oil includes at least one selected from the group consisting of a carboxy-modified silicone oil, a phenol-modified silicone oil and a silanol-modified silicone oil.
6. 6 . The inkjet treatment liquid according to claim 1 , wherein the unmodified silicone oil includes dimethylpolysiloxane.
7. 7 . The inkjet treatment liquid according to claim 1 , wherein a percentage content of the silicone oils in the treatment liquid is 5% by mass or more and 15% by mass or less.
8. 8 . The inkjet treatment liquid according to claim 5 , wherein the emulsified particles include first emulsified particles containing the ionic functional group-containing silicone oil and second emulsified particles containing the unmodified silicone oil.
9. 9 . The inkjet treatment liquid according to claim 5 , wherein the emulsified particles include third emulsified particles containing both the ionic functional group-containing silicone oil and the unmodified silicone oil.
10. 10 . The inkjet treatment liquid according to claim 5 , wherein a content ratio of the unmodified silicone oil to the ionic functional group-containing silicone oil in the inkjet treatment liquid is 0.33 or more and 1 or less.
11. 11 . The inkjet treatment liquid according to claim 5 , wherein the unmodified silicone oil includes dimethylpolysiloxane.
12. 12 . The inkjet treatment liquid according to claim 5 , wherein a percentage content of the silicone oils in the treatment liquid is 5% by mass or more and 15% by mass or less.

Description

RELATED APPLICATIONS The present application is a National Phase of International Application No. PCT/JP2022/032479 filed Aug. 30, 2022, which claims the benefit of priority from Japanese Patent Application No. 2021-145353, filed on Sep. 7, 2021. TECHNICAL FIELD The present disclosure relates to an inkjet treatment liquid, an inkjet textile printing apparatus, and an inkjet textile printing method. BACKGROUND ART In inkjet textile printing methods, for example, ink containing pigments are used. In order to improve the color fastness to rubbing of textile printing targets (hereinafter sometimes referred to as textile printing articles) on which images are formed, ink containing pigments is sometimes used with post-treatment liquid. Meanwhile, transport rollers for inkjet recording apparatuses are conventionally known (see Patent Literature 1, for example). In the transport roller described in Patent Literature 1, a treatment liquid containing one or both of fullerene and a fullerene derivative is applied to the surface of the transport roller. CITATION LIST Patent Literature Patent Literature 1: JP 2013-75524 A SUMMARY OF INVENTION An inkjet treatment liquid according to a first aspect of the present disclosure comprises emulsified particles containing a silicone oil and an aqueous medium, wherein the silicone oil includes an ionic functional group-containing silicone oil and an unmodified silicone oil. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a side view illustrating an example of an inkjet textile printing apparatus according to a second embodiment of the present disclosure. DESCRIPTION OF EMBODIMENTS In recent years, in inkjet textile printing technique, further improvement in the color fastness to rubbing of textile printing articles has been required. It is assumed that the color fastness to rubbing of textile printing articles changes depending on the concentration of silicone oil contained in the treatment liquid, the amount of treatment liquid ejected, and the like (The treatment liquid may be called as a processing solution.). For example, in a case where the amount of treatment liquid ejected is a small amount, it is assumed that the color fastness to rubbing of textile printing articles may be affected when the concentration of silicone oil is too low. Hence, from the viewpoint other than the concentration adjustment of silicone oil, it is suitable to know the conditions for the properties of an inkjet treatment liquid under which a textile printing article excellent in the color fastness to rubbing can be fabricated. Here, it is assumed that the color fastness to rubbing of textile printing articles also changes depending on the kind of silicone oil contained in the treatment liquid. Hence, from the viewpoint of the kind of silicone oil, it is suitable to know the conditions for the properties of an inkjet treatment liquid under which a textile printing article excellent in the color fastness to rubbing can be fabricated. Color fastness to rubbing includes color fastness to dry rubbing and color fastness to wet rubbing. Depending on the kind of silicone oil contained in the treatment liquid, it is often possible to fabricate a textile printing article that is specialized in one of these and has an excellent color fastness to rubbing. Hence, an inkjet treatment liquid capable of fabricating a textile printing article excellent in both the color fastness to dry rubbing and the color fastness to wet rubbing is required. Furthermore, it is more preferable that the inkjet treatment liquid can also suppress deterioration in the texture of textile printing article. The inkjet treatment liquid of the present disclosure can suppress deterioration in the texture of textile printing article and can fabricate a textile printing article excellent in both the color fastness to dry rubbing and the color fastness to wet rubbing. Hereinafter, embodiments of the present disclosure will be described. In this specification, the measured value of volume median diameter (D50) is the median diameter measured using a laser diffraction/scattering particle size distribution analyzer (“LA-950” manufactured by HORIBA, Ltd.), unless otherwise specified. Hereinafter, the volume median diameter is sometimes referred to as “D50”. The “main component” of a material means a component that is contained in the material in the largest amount by mass, unless otherwise specified. “Specific gravity” means specific gravity at 25° C. unless otherwise specified. Acryl and methacryl are collectively referred to as “(meth)acryl” in some cases. Each component described in this specification may be used singly or in combination of two or more kinds thereof. First Embodiment: Inkjet Treatment Liquid Hereinafter, an inkjet treatment liquid (hereinafter, also referred to as treatment liquid) according to the first embodiment of the present disclosure will be described. The treatment liquid according to the first embodiment contains emulsified par