CN106427214B - Device and operation method for producing monochrome printed fabric based on projection - Google Patents

Abstract

The invention discloses a device and an operation method for producing monochrome printed fabrics based on projection, and belongs to the field of textile technology; the device for producing monochrome printed fabrics based on projection includes a PC, a controller, a shower head, a projector, a roller, and a fabric , adjustable bracket; the actions of the sprinkler head and the projector are controlled by the controller, and the controller communicates with the PC; the present invention transmits action instructions to the controller through the PC, and the controller controls the sprinkler head to spray After the light-cured resin is applied to the surface of the fabric, it is irradiated and fixed by a projector capable of emitting light of the corresponding wavelength, and a fabric with a pattern is obtained. The printing fabric pattern processed by the method can be continuously adjusted on-line, can realize individualized production, and has the advantages of high fabric pattern resolution, high output and less pollution.

Description

Device and operation method for producing monochrome printed fabric based on projection

technical field

The invention specifically relates to a device and an operation method for producing monochrome printed fabrics based on projection, and belongs to the technical field of textiles.

Background technique

Textile printing technology is divided into two types: traditional printing technology and textile digital inkjet printing technology. The latter is a printing technology gradually developed after the 1990s. Compared with the traditional printing technology, it is a plateless printing technology that can realize point-by-point control, and it is a revolutionary breakthrough to the traditional printing technology. At present, digital printing products only account for about 3% of the total printing output, and traditional printing occupies a dominant position in the market. The rapid development of the digital printing industry has not been as expected due to the many bottlenecks in the process of digital inkjet printing. First, dye ink digital printing still requires complex post-processing. Subsequent processing procedures such as steaming, soaping, water washing and drying still have problems of high water and energy consumption and pollution. Second, the fiber-selective adsorption properties of dyes lead to limitations in the types of fabrics. Third, the speed of inkjet printing is slow, especially when processing high-precision patterns, the speed of printing is even slower, and it is difficult to meet the requirements of processing speed and processing output.

In view of the shortcomings of dye-based digital printing, the development of pigment-based digital printing technology has received more and more attention in recent years. In order to solve the first and second problems in the inkjet printing process, Chinese patent CN105400292A discloses a reactive dye ink, which includes reactive dyes, auxiliary agents and deionized water, and the auxiliary agents include glycol, urea and surfactants. Chinese patent CN103834232A discloses an ink for inkjet printing of textiles with high fastness. Pigment ink and its preparation method is a processing method in which the pigment ink is sprayed on the pretreated fabric to form a pattern, and then pre-dried and baked to fix the color to obtain a printed fabric. Pigment inkjet printing has the characteristics of short process flow and wide range of applicable fibers. Aiming at the vividness of colors, Chinese patent CN1308544C discloses a fabric treatment process for digital inkjet printing, which is suitable for fabrics such as cotton, linen, silk, polyester, polyester cotton, and acrylic fibers. The pretreatment liquid is a thickener or cationic The aqueous solution of the auxiliary agent, the treated fabric is printed with water-based pigment ink, which can improve the clarity of the pattern and the vividness of the color. Chinese patent CN100500982C discloses a method for improving the image performance of inkjet printing with cationic compounds, which can improve the clarity, color depth and vividness of inkjet printing. Oxyethylene ether) solution treatment to remove residual substances on the surface of fabric fibers. Chinese patent CN100577911C discloses a method for improving the color fastness of inkjet printing pigment inks. By adding an appropriate amount of crosslinking agent to the inkjet printing pigment ink, the crosslinking agent is utilized in the process of baking after inkjet printing. Film-forming performance, forming a continuous, dense and smooth film on the surface of the fabric, which improves the color fastness of the ultra-fine pigment particles in the ink on the fabric to a certain extent. Chinese patent CN104452339A discloses a method for producing pigment inkjet printed fabrics. The production process includes the following steps: pretreating the pretreated fabrics, and then drying and inkjet printing the pretreated and dried fabrics with pigment inks , and drying, apply color-fixing liquid to the fabric after inkjet printing drying, and dry, and then bake to fix the color. The color-fixing liquid applied in the step can be one or a combination of adhesives, softeners, cross-linking agents, and color-fixing agents, and the application method is liquid spraying. The pigment ink-jet printing fabric processed by the method has the advantages of bright color and high fastness. The binder is used as a film-forming substance to cover and fix the colorant pigment on the surface of the fiber to complete the printing coloring process. Since pigments are non-selective to fibers, it greatly broadens the adaptability of digital printing to printed fabrics. At the same time, the post-process of pigment-based digital printing only needs to be baked, which greatly shortens the post-process, reduces water consumption and waste water discharge, and conforms to the development direction of ecological dyeing and finishing and clean production. Huang Yi and Shao Jianzhong mentioned in their doctoral dissertation "Research on Digital Jet Printing Technology of Blue Light Curable Pigments for Textiles" that they optimized the composition of the high-efficiency blue light-initiating system, the construction of a low-viscosity flexible polymerization system, the compatibility of colorants and pigments with the polymerization system, and the blue light The application performance of curable pigment ink and fabric printing effect provide theoretical guidance for the research and development of blue light curable pigment inkjet printing ink and related application technologies suitable for textiles.

The above invention either improves the color performance of the pigment ink inkjet printing by pretreating the fabric, or improves the color fastness of the ultrafine pigment particles on the fabric by adding an appropriate amount of crosslinking agent to the inkjet printing pigment ink.

But for above-mentioned problem, adopt the method for photocuring of projector to realize high-precision, high-speed, high-yield printing and there is no report.

Contents of the invention

The object of the present invention is to: aim at the problems existing in the above-mentioned prior art, and provide a device and an operation method for producing monochrome printed fabrics based on projection. In that: comprising at least one projection unit installed on the frame (9) to produce monochrome printed fabrics; said projection unit to produce monochrome printed fabrics includes a PC (2) connected to the controller (1) through a communication line, in During the production process, the controller controls the spraying action of the sprinkler head (5) and the projection image of the projector (4). At the same time, the controller controls the rotary movement of the drum (7), and the fabric (8) sprays along with the rotary gap of the drum. The movement delivery of the head, the adjustable bracket (3) is used to adjust the distance between the spray head and the projector and the fabric; the operation method is to transmit the action command to the controller through the PC, and the controller controls the spray head to spray the light-cured resin After reaching the surface of the fabric, a projector capable of emitting light of the corresponding wavelength is irradiated and fixed to obtain a patterned fabric.

Furthermore, the device and operation method for producing monochrome printed fabrics based on projection is characterized in that: the fabrics are pure natural fiber fabrics, chemical fiber fabrics or blended fabrics of two or more types of pure natural fibers and chemical fibers.

Furthermore, the device and operation method for producing monochrome printed fabrics based on projection is characterized in that: the initiation light for spraying photocurable resin by the spray head on the surface of the fabric is ultraviolet light, visible light or infrared light, and the selected initiation light The characteristic wavelength of light is 365nm, 385nm, 402nm, 405nm or 420nm, and the resin is TPU.

Furthermore, the device and operation method for producing monochrome printed fabric based on projection is characterized in that: the wavelength of the projector emitting light of the corresponding wavelength is consistent with the characteristic wavelength of the induced light.

Further, the device and operation method for producing monochrome printed fabrics based on projection include the following steps during operation:

Step 1: PC design patterns.

Step 2: Install the fabric to be printed between the two cylinders, and start the device.

Step 3: Spray a layer of resin of specified color with photoinitiating function on the surface of the fabric from the spray head.

Step 4: The projector projects on the surface of the fabric, and after the resin on the surface of the fabric undergoes cross-linking and polymerization reactions, a patterned fabric is obtained.

Further, the PC in the step 1 can be a personal computer for home use, or an industrial-grade or pattern-design professional-grade computer. The configuration of the PC and the changes in the various pattern design software used for the level change all fall within this category. The scope of protection claimed by the invention.

Further, the difference in reaction types in step 4 still belongs to the protection scope of the present invention.

The invention provides a device and an operation method for producing monochrome printed fabrics based on projection. The printed fabric pattern processed by this method can be continuously adjusted online, and individualized production can be realized. The fabric pattern has the advantages of high resolution, high output, and reduced pollution, thereby providing The basis is laid for the new automated production of monochromatic printed fabrics.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the structure of the present invention.

In the figure: controller-1; PC-2; adjustable bracket-3; projector-4; sprinkler head-5; arrow-6; roller-7; fabric-8; frame-9;

Detailed ways

In order to further understand the essential meaning of the present invention, the embodiments of the present invention will be described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

Example 1:

The invention provides a device and an operation method for producing monochrome printed fabrics based on projection, which is characterized in that: it includes at least one unit for producing monochrome printed fabrics by projection installed on a frame (9); The unit includes a PC (2) connected to the controller (1) through a communication line. During the production process, the controller controls the spraying action of the sprinkler head (5) and the projector (4) projects images, and at the same time the controller controls the roller (7 ), the fabric (8) is transported in the direction indicated by the arrow with the rotation gap of the drum, and the adjustable bracket (3) is used to adjust the distance between the sprinkler head and the projector and the fabric; the operation method is through the PC Send action instructions to the controller, and the controller controls the spray head to spray photocurable resin onto the surface of the fabric, and after the projector that can emit light of the corresponding wavelength irradiates and fixes the color, a fabric with a pattern is obtained.

Micro-spray method: PC designs a square image pattern, connects the PC to the controller, installs the fabric to be printed between the two rollers, and starts the device; the thickness of spraying from the spray head to the surface of the fabric is 0.1mm The red photosensitive resin with a red characteristic wavelength of 365nm with photoinitiating function is projected on the surface of the fabric by a projector. After the resin on the surface of the fabric undergoes cross-linking and polymerization reactions, a patterned fabric is obtained.

Example 2:

The invention provides a device and an operation method for producing monochrome printed fabrics based on projection, which is characterized in that: it includes at least one unit for producing monochrome printed fabrics by projection installed on a frame (9); The unit includes a PC (2) connected to the controller (1) through a communication line. During the production process, the controller controls the spraying action of the sprinkler head (5) and the projector (4) projects images, and at the same time the controller controls the roller (7 ), the fabric (8) is transported in the direction indicated by the arrow with the rotation gap of the drum, and the adjustable bracket (3) is used to adjust the distance between the sprinkler head and the projector and the fabric; the operation method is through the PC Send action instructions to the controller, and the controller controls the spray head to spray photocurable resin onto the surface of the fabric, and after the projector that can emit light of the corresponding wavelength irradiates and fixes the color, a fabric with a pattern is obtained.

Soaking and spraying method: PC designs a square image pattern, connects the PC with the controller, installs the fabric to be printed between the two rollers, and starts the device; the spraying head sprays the fabric with light triggering function Red photosensitive resin with a red characteristic wavelength of 365nm until the fabric is soaked in the resin solution, and the liquid level of the resin solution is kept at a height of 0.1mm above the fabric surface. The projector projects on the fabric surface, and the resin on the fabric surface produces cross-linking 1. After the polymerization reaction, a patterned fabric is obtained.

In addition to the above-mentioned embodiments, the present invention can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims (4)

1. the device of monochromatic PRINTED FABRIC is produced based on projection, it is characterised in that：It is arranged on including at least one in frame (9) Projection produces the unit of monochromatic PRINTED FABRIC；The unit that the projection produces monochromatic PRINTED FABRIC passes through connection including PC (2) It is connected with controller (1), in process of production the spray action of controller control spray head (5) and projecting apparatus (4) projected image, The gap gyration of controller control roller (7), fabric (8) move with the gyration aperture of roller to the direction of spray head simultaneously Conveying, adjustable support (3) are used to adjust the spacing between spray head and projecting apparatus and fabric；

Instructed by PC to controller transfer operation, controller control spray head spray certain thickness carries the finger of light-initiated function The resin of color is determined to after fabric face, is irradiated by the projecting apparatus that can send respective wavelength light；

Perform step and design a width square-shaped image pattern for PC, PC is connected with controller, it would be desirable to the fabric installation of stamp To between two rollers, and starter；From spray head to photosensitive resin of the fabric spray with light-initiated function, until fabric It is immersed in resin solution, and keeps the liquid level of resin solution to be higher by fabric face 0.1mm height, projecting apparatus is in fabric face Projection, after the resin of fabric face produces crosslinking, polymerisation, obtain having with figuratum fabric.

2. the device according to claim 1 that monochromatic PRINTED FABRIC is produced based on projection, it is characterised in that：The fabric is The blend fabric of two or more fibers in pure natural fiber fabric, chemical ＆ blended fabric or pure natural fiber and chemical fibre.

3. the device according to claim 1 that monochromatic PRINTED FABRIC is produced based on projection, it is characterised in that：The fabric table The initiation light of face spray head spray light-cured resin is ultraviolet light, visible or infrared light, the characteristic wavelength of the initiation light of selection For 365nm, 385nm,

402nm, 405nm or 420nm, the resin are TPU.

4. the device according to claim 3 that monochromatic PRINTED FABRIC is produced based on projection, it is characterised in that：It is described to send phase Answer the wavelength of the projecting apparatus of wavelength light consistent with the characteristic wavelength of the initiation light.