30 results about "Digital textile printing" patented technology

The present invention is to provide a method and an apparatus for overcoming complication of the pretreating process due to diversification of materials by digitalizing a method for pretreating a fabric in an inkjet printing process by using an inkjet device, and further, an inkjet printing method and an inkjet printing apparatus for enabling the inkjet printing work to be continuously conducted on the basis of the said pretreatment. The present invention comprises a pretreatment liquid reservoir for enabling the pretreatment mixed liquid to be applied or respective containers to be filled with individual component compositions of a pretreatment liquid, a control unit for controlling application of the pretreatment liquid and a pretreatment head for applying the pretreatment liquid to the fabric, and it may additionally comprise a dryer for drying the pretreated fabric and a printing head for performing the actual printing work. The present invention can solve the problems incidental to the conventional pretreating method and further provide a method and an apparatus for enabling a continuous process to be executed.

The invention discloses high-temperature direct-injection disperse ink as well as a preparation method and an application thereof. The ink is prepared from the following raw materials in parts by weight: 15-60 parts of high-temperature disperse dye, 0.3-20 parts of dispersant, 30-60 parts of organic solvent, 10-50 parts of water, 0.5-10 parts of surfactant, 0.05-0.2 part of preservative and 0.05-0.2 part of defoamer. The preparation method comprises the steps of evenly mixing the high-temperature disperse dye, the dispersant, the organic solvent and water together, adding zirconium beads for grinding and dispersing, and then adding the rest organic solvent, water, the surfactant, the preservative and the defoamer to the mixture, mixing evenly, and filtering to obtain the filtrate. The ink is applied to a novel industrial digital textile printing machine and in particular to a textile printing machine with a precision work 508GS nozzle; the ink can be directly injected for printing by using the printing machine, and therefore, the utilization rate of the ink is increased, the cost is reduced and the environmental pollution is reduced; the ink can be dyed quickly at high temperature without transfer printing, and thus has the advantages of short dyeing time, firm dyeing and the like.

The present invention is related to a novel high fixation ink composition for digital textile printing, which comprises: (A) at least one reactive dye compound with two reactive groups in an amount of 1% to 50% by weight; (B) an organic buffer in an amount of 0.05% to 10% by weight; (C) a humectant in an amount of 10% to 50% by weight; and (D) a solvent in remaining amount. When the aforesaid ink composition is applied in digital textile printing, fixation rate of dye on fabrics is high.

Disclosed are aqueous printing inks that are used for inkjet textile printing and contain one or several compounds of general formula (I), wherein A, B, R<1> to R<6>, and D have the meaning indicated in claim 1, methods for the production thereof, and the use thereof for inkjet textile printing.

A textile feed for a stepped operation digital textile printer, comprises a textile feeding mechanism, and a tension storage mechanism. The textile feeding mechanism feeds the textile in a forward direction onto the printer, but is at the same time mechanically connected to a tension storage mechanism which is tensioned by the forward feeding. At the end of the feed step, the tension storage mechanism releases respectively stored tension to cause the feed mechanism to briefly reverse feed, thereby to pull the textile taut and take up any slack caused by the feeding step. The textile is thus kept taut, to allow effective digital printing by the printer.

The present invention relates to a novel ink composition and, more particularly, to an ink composition for digital textile printing, which is suitable for ink-jet printing on cellulose fiber materials. The novel ink composition of the present invention has stable pH value, fine storage stability, smoothness and ease in printing, and reduction in color deterioration.

An ultra-high whiteness aqueous white color paste for digital textile printing ink is provided, which comprises: 40 wt % to 70 wt % of TiO₂ powders; 1 wt % to 5 wt % of a wetting agent; 2 wt % to 12 wt % of a dispersant; and rest of water. Herein, the TiO₂ powders are rutile TiO₂ powders, the wetting agent is a fatty acid derivative, and the dispersant is an acrylic acid copolymer. In addition, the present disclosure thrther provides an ink composition using the aforesaid ultra-high whiteness aqueous white color paste.

The invention relates to the technical field of digital textile printing, in particular to a pressing device for a digital textile printing machine. The pressing device for the digital textile printing machine can conduct ironing on fabrics and has the dust collection function and the cooling function. The structure of the pressing device comprises a workbench. Supporting legs are arranged at the bottom of the workbench. A pressing roller is arranged on the workbench. The two sides of the pressing roller are rotationally connected with transversely arranged guide rails through rotating shafts. The inner rotating shaft is connected with the drive device through a chain. A hollow cavity is arranged in the pressing roller. A plurality of through holes are formed between the side face of the cavity and the outer surface of the pressing roller. The outer rotating shaft penetrates through a vent hole. The inner end of the vent hole is connected with the cavity. The outer end of the vent hole is connected with the left end of a first connecting pipe through a rotary connector, and the right end of the first connecting pipe is connected with a steam generating device. The first connecting pipe is provided with a first ball valve. The pressing device for the digital textile printing machine is easy to operate, convenient to use and suitable for treatment of multiple kinds of fabrics.

The invention belongs to the technical field of textile digital printing, and in particular relates to a method for digital textile printing in a wet state. The method comprises the following processsteps of preparation of a pretreatment working fluid; squeegee treatment of uniformly squeegeeing the pretreatment working fluid on the dry textile; and a printing treatment of directly digitally printing, drying, steaming and washing the wet textiles after the squeegee treatment without the operation of drying. The method for digital textile printing in the wet state can solve the problems of weft skew, yellowing, pretreatment liquid and energy waste caused by pretreatment using a tentering setting machine in the prior art, and the digital printing products using the method are full and bright in colors.

The invention discloses a textile digital printing machine, and relates to the technical field of digital printing machines, the textile digital printing machine comprises a machine body, the outer wall of one side of the machine body is fixedly connected with two groups of driving assemblies, the two groups of driving assemblies are respectively connected with an unwinding roller and a winding roller, a non-woven fabric body is wound on the outer wall of the circumference of the unwinding roller, and the winding roller is connected with the non-woven fabric body. And a translation assembly is arranged in the machine body, and a spray head body is fixedly connected to one side of the translation assembly. According to the non-woven fabric printing device, printing ink in the storage box can be sprayed out more evenly, the printing quality of a non-woven fabric body is effectively improved, and after printing work of the non-woven fabric body is completed, a control valve on one side of a material guide pipe is closed, and a control valve on one side of a liquid guide pipe is opened; and at the moment, the clean water in the cavity flows out to effectively clean the spray head body, and the situation that the subsequent spraying and printing work of the spray head body is affected due to ink residues in the spray head body is avoided.

The invention provides a direct treatment method of digital printing wastewater, comprising the steps of treating digital printing wastewater from a digital textile printing process through an ultrafiltration treatment process so as to separate ultrafiltration concentrate and ultrafiltration treated water from the digital printing wastewater; treating the ultrafiltration treated water by means ofreverse osmosis so as to separate reverse osmosis concentrate and reverse osmosis treated water from the ultrafiltration treated water. The ultrafiltration concentrate is circulated to mix the same with newly supplied printing wastewater; the reverse osmosis concentrate is circulated to mix the same with the ultrafiltration treated water. The direct treatment method is used for directly treating dyeing wastewater from digital textile printing; treating efficiency of the direct treatment method is improved by lowering organic carbon load of a membrane.

Highly saturated scarlet dye ink for a high-speed inkjet process and a method of preparing the highly saturated scarlet dye ink are disclosed. In particular, an ink composition according to the present invention includes a dye including a compound represented by Formula 1, and further includes, in addition to the dye, distilled water, a surfactant, and an additive. The ink composition develops a highly saturated scarlet color that is unable to be developed by existing inks for digital textile printing (DTP), and has high water solubility, excellent heat resistance, and light-fastness, and thus may be effectively used as dye and ink for a high-speed inkjet process.

The invention provides orange ink for digital printing of a textile, which belongs to the field of textile pigments, and can solve the problems of hard hand feeling, dull color, low color fastness, unrepresentable brightness and serious service dyeing of a printed textile obtained from existing pigment ink.The orange ink for digital textile printing provided by the technical scheme is prepared from the following materials in parts by weight: 20- 40 parts of orange microcapsule pigment, 10- 20 parts of water-base resin, 5- 15 parts of quick-drying solvent, 5- 15 parts of moisture preserving solvent, and 0.5- 1 part of a surfactant.A microcapsule technology is applied to preparation of the pigment ink for digital printing of the textile, and the printed textile obtained therefrom has the advantages of high color fastness, high textile comfort, safety, and bright color; when the ink is used as textile printing ink, no surface dyeing occurs, and a reduction cleaning process can be omitted,thus reducing environmental pollution and lowering production cost.

The invention discloses a digital textile printing equipment nozzle moisturizing system which comprises a water tank, a partition plate is fixedly connected to the side face of the water tank, a steam generator is arranged in a steam generation box, a supporting plate is fixedly connected to the upper side of the water tank, a moisturizing pipe is fixedly connected to the supporting plate, and a steam pipe is arranged on the side face of the steam generator. A mounting plate is arranged at the bottom end of the water tank, and a lifting mechanism is arranged between the upper end of the mounting plate and the bottom end of the water tank. According to the spray head moisturizing system for the digital textile printing equipment, liquid in the water tank is converted into steam through the steam generator, the steam is conveyed into the moisturizing pipe through the steam pipe and the guide pipe to moisturize the spray head, the steam moisturizing means is mild and effective, and the phenomenon that the spray head is blocked is effectively eradicated.