Water-soluble surfactant composition and ink composition containing the composition

Abstract

A surfactant composition comprising (A) a polyether-modified silicone represented by the following average composition formula (I), (B1) water, and (C1) a water-soluble organic solvent. In formula (I), R is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and n is an integer of 6 to 20. The composition of the present invention has excellent dispersibility, wettability, and penetrability when blended in ink, has water solubility, can cope with high-speed printing and high-speed coating, and is also suitable for environmental problems.

Description

technical field

[0001] The present invention relates to a water-soluble surfactant composition, and particularly relates to exhibiting excellent wettability and penetrability due to its low dynamic surface tension and low contact angle when blended in an ink, which can also be used for high-speed printing and high-speed coating, and also A water-soluble surfactant composition suitable for recent environmental problems and an ink composition containing the composition. Background technique

[0002] In recent years, in the printing industry, due to environmental issues and other reasons, water-based printing has been advancing. However, in the case of the water system, the drying speed is slow, so the production speed is slower than that of the solvent system, so it has to cope with the increase in speed along with the improvement of productivity, and the performance of the ink corresponding to high-speed printing and high-speed coating is required. improve.

[0003] Against...

Examples

Embodiment 1

[0061] 80 parts of (A-1) heated to 50° C. were put into a container with a blade stirrer, 10 parts of propylene glycol and 10 parts of water were slowly added, and stirred for 1 hour to obtain a surfactant composition (hereinafter referred to as called M-1).

[0062] 【Chemical 4】

[0063]

Embodiment 2～4、 comparative example 1～9

[0065] Surfactant compositions M-2 to M-13 were obtained in the same manner as in Example 1 with the compounding compositions shown in Table 1.

[0066] 【Chemical 5】

[0067]

[0068] 【Chemical 6】

[0069]

[0070] 【Table 1】

[0071]

[0072] In addition, the measurement of each physical property was performed as follows. The results are shown in Table 2.

[0073]

[0074] The appearance of the aqueous solution and the presence or absence of insoluble matter were checked.

[0075] ○: The aqueous solution is transparent, and no insoluble matter is found

[0076] △: The aqueous solution was cloudy, but no insoluble matter was found

[0077] ×: A part of insoluble matter was found

[0078]

[0079]The dynamic surface tension at 1 Hz and 10 Hz of a 0.1% aqueous solution of the surfactant composition was measured using a bubble pressure type dynamic surface tensiometer Kruss BP-100 manufactured by KRUSS Corporation.

[0080]

[0081] The contact angle after dr...

Embodiment 5

[0086] As the ink, after slowly adding 5 parts of Kara Bradke S170 (manufactured by Degussa Co., Ltd.) as a black pigment to 70 parts of ion-exchanged water while stirring with a blade mixer, add 1 part of surfactant composition M-1, 10 1 part polyethylene glycol (molecular weight 200), 15 parts glycerin, and after stirring for 1 hour, a black ink composition (hereinafter referred to as ℓ-1) was obtained.

[0087] Furthermore, a magenta pigment (C.I. Pigment Red 122), a cyan pigment (C.I. Pigment Blue 15:3), and a yellow pigment (C.I. Pigment Yellow 74) were used instead of the above-mentioned black pigment, and magenta (C.I. Pigment Yellow 74) was produced in the same manner as above. M), cyan (C), yellow (Y) ink.

technical field

[0001] The present invention relates to a water-soluble surfactant composition, and particularly relates to exhibiting excellent wettability and penetrability due to its low dynamic surface tension and low contact angle when blended in an ink, which can also be used for high-speed printing and high-speed coating, and also A water-soluble surfactant composition suitable for recent environmental problems and an ink composition containing the composition. Background technique

[0002] In recent years, in the printing industry, due to environmental issues and other reasons, water-based printing has been advancing. However, in the case of the water system, the drying speed is slow, so the production speed is slower than that of the solvent system, so it has to cope with the increase in speed along with the improvement of productivity, and the performance of the ink corresponding to high-speed printing and high-speed coating is required. improve.

[0003] Against...

Examples

Embodiment 1

[0061] 80 parts of (A-1) heated to 50° C. were put into a container with a blade stirrer, 10 parts of propylene glycol and 10 parts of water were slowly added, and stirred for 1 hour to obtain a surfactant composition (hereinafter referred to as called M-1).

[0062] 【Chemical 4】

[0063]

Embodiment 2～4、 comparative example 1～9

[0065] Surfactant compositions M-2 to M-13 were obtained in the same manner as in Example 1 with the compounding compositions shown in Table 1.

[0066] 【Chemical 5】

[0067]

[0068] 【Chemical 6】

[0069]

[0070] 【Table 1】

[0071]

[0072] In addition, the measurement of each physical property was performed as follows. The results are shown in Table 2.

[0073]

[0074] The appearance of the aqueous solution and the presence or absence of insoluble matter were checked.

[0075] ○: The aqueous solution is transparent, and no insoluble matter is found

[0076] △: The aqueous solution was cloudy, but no insoluble matter was found

[0077] ×: A part of insoluble matter was found

[0078]

[0079]The dynamic surface tension at 1 Hz and 10 Hz of a 0.1% aqueous solution of the surfactant composition was measured using a bubble pressure type dynamic surface tensiometer Kruss BP-100 manufactured by KRUSS Corporation.

[0080]

[0081] The contact angle after dr...

Embodiment 5

[0086] As the ink, after slowly adding 5 parts of Kara Bradke S170 (manufactured by Degussa Co., Ltd.) as a black pigment to 70 parts of ion-exchanged water while stirring with a blade mixer, add 1 part of surfactant composition M-1, 10 1 part polyethylene glycol (molecular weight 200), 15 parts glycerin, and after stirring for 1 hour, a black ink composition (hereinafter referred to as ℓ-1) was obtained.

[0087] Furthermore, a magenta pigment (C.I. Pigment Red 122), a cyan pigment (C.I. Pigment Blue 15:3), and a yellow pigment (C.I. Pigment Yellow 74) were used instead of the above-mentioned black pigment, and magenta (C.I. Pigment Yellow 74) was produced in the same manner as above. M), cyan (C), yellow (Y) ink.

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