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Solid ink composition comprising semicrystalline oligomer resins

An oligomeric resin, semi-crystalline technology, used in inks, chemical/physical processes, transportation and packaging to solve problems such as fragility, scratch resistance and poor image fastness, poor adhesion, etc.

Inactive Publication Date: 2012-12-05
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Many traditional solid ink compositions are made from highly crystalline waxes or wax-based materials, such as polyethylene waxes, and hydrocarbon amide or ester waxes, which are very hard and resistant to melting rapidly and crystallizing (solidifying) rapidly on cooling materials; however, these wax-based crystalline solid inks do have certain physical defects
For example, solid inks containing hard, crystalline wax-based materials are also more brittle, so prints made with such inks are prone to damage from applied mechanical forces, such as scratching or breaking from paper creases
In addition, crystalline wax-based solid inks generally have poor adhesion to non-porous substrates, which results in their own poor scratch resistance and image fastness

Method used

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  • Solid ink composition comprising semicrystalline oligomer resins
  • Solid ink composition comprising semicrystalline oligomer resins
  • Solid ink composition comprising semicrystalline oligomer resins

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0119] Prepare oligoamide ester resin (resin 1 of table 1)

[0120] The oligomeric ester amide resin of this embodiment is a representative example of the resin. The starting materials are 1,12-dodecanedioic acid and 6-aminohexanol as monomers, and dodecane as an end-capping agent. Alkyl alcohol (lauryl alcohol), its preparation method is as follows:

[0121]

[0122] As indicated above, 6-aminohexanol is reacted with 1,12-dodecanedioic acid with dodecanol or lauryl alcohol as capping agents to produce oligoamide esters. To a 100 mL three-necked round bottom flask equipped with an argon inlet, a temperature probe connected to a digital temperature controller, a magnetic stirring bar and a short path distillation head was added: 1.172 g (10.0 mmol) of 6-aminohexanol (mp =55° C.) and 3.455 g (15 mmol) of 1,12-dodecanedioic acid (mp=128° C.), and finally 1.863 g (10 mmol) of dodecanol (lauryl alcohol). The reaction mixture was heated to melting (~100°C) with stirring at 400 ...

Embodiment 2

[0127] Prepare oligomeric ester amide resin (resin 2 of table 1)

[0128] The oligomeric ester amide resin of this example was prepared in a similar process and on the same scale as the resin of Example 1, except that p-methoxybenzyl alcohol (1.38 g, 10.0 mmol) was used instead of dodecanol as an end-capping agent. The conversion rate of the reaction is 1 H-NMR and 13 C-NMR tracking up to 3 hours, after which time, 1 H-NMR analysis showed that all of the 6-aminohexanol had reacted. Apply high vacuum (2 O, the mixture was then poured into containers to give an opaque beige resin in a yield of 5.23 g. The chemical structure of this product consists of 1 Confirmed by H-NMR spectrum. Rheological analysis was performed using a Rheometrics RFS3 instrument (oscillating frequency 1 Hz, 25 mm parallel plate geometry tool, 200 % applied strain) in the temperature range from 50°C to 130°C. figure 1 A graph showing complex viscosity versus temperature indicates that this material is...

Embodiment 3

[0130] Prepare oligoamide ester resin (resin 3 of table 1)

[0131] The oligomeric ester amide resin of this embodiment is a representative embodiment of the resin, and the starting material is a C36-dimer acid monomer, which is prepared as follows:

[0132]

[0133] PRIPOL 1006 (C-36 dimer diacid, available from CRODA Inc.) was reacted with 6-aminohexanol and UNILIN 350 (x~21 carbon units, available from Baker-Petrolite) as capping agent, as described above, Preparation of oligoamide esters. In an embodiment, NMR confirms that the oligoamide ester resin structure has n=2 and has x˜21 carbon units.

[0134] Into a 100 ml reactor equipped with a stir bar, a four-neck plug with a thermocouple connected to a digital temperature controller, an argon inlet, and a short path distillation head was charged: 18.44 g (32 mmol) of Pripol 1006 (a commercial product from CRODA Inc.'s C-36 dimer diacid), 2.52g (22mmol) of 6-aminohexanol purchased from Sigma Aldrich, and 0.02g (0.096mmo...

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Abstract

The invention relates to a solid ink composition comprising semicrystalline oligomer resins which is suitable for direct-to-paper (DTP) and / or transfix inkjet printing. In embodiments, the oligomer resins are poly / oligoester and poly / oligoesteramide compounds, which are non-wax materials having semicrystalline properties.

Description

technical field [0001] The present invention relates to a solid ink composition containing a semi-crystalline oligomer resin. Background technique [0002] The solid ink compositions disclosed herein are characterized in that they are solid at room temperature and melt at elevated temperatures at which the melted ink is applied to a substrate. These solid ink compositions are useful in printing inks, especially inkjet printing inks. [0003] Solid ink compositions for inkjet printing typically contain both a colorant and a vehicle or vehicle, where the vehicle or vehicle is a material that dissolves or suspends the colorant. For example, a simple solid ink composition consists of a wax as a carrier and a pigment or dye as a colorant. Many solid ink compositions primarily consist of crystalline polyethylene waxes and other functionalized wax components that allow rapid phase transition from molten liquid to solid state and, due to their low coefficient of friction, also fac...

Claims

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Application Information

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IPC IPC(8): C09D11/02C09K23/00
CPCC09D11/34C09D11/02C09D11/10C09D11/00C08K3/013C08K5/0041C08L67/02C08L67/00C08L77/06C08L77/12C08L79/00C08L77/00B41M5/00C09D11/104C09D11/102
Inventor R·卡利尼A·格雷德玛
Owner XEROX CORP
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