CN113928000A - Online sizing printing system and process based on single pass digital printing machine - Google Patents
Online sizing printing system and process based on single pass digital printing machine Download PDFInfo
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- CN113928000A CN113928000A CN202111009010.8A CN202111009010A CN113928000A CN 113928000 A CN113928000 A CN 113928000A CN 202111009010 A CN202111009010 A CN 202111009010A CN 113928000 A CN113928000 A CN 113928000A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/0831—Machines for printing webs
- B41F15/0836—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/10—Machines for multicolour printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/16—Printing tables
- B41F15/18—Supports for workpieces
- B41F15/24—Supports for workpieces for webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/38—Screens, Frames; Holders therefor curved
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/40—Inking units
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/0004—General aspects of dyeing
- D06P1/0016—Dye baths containing a dyeing agent in a special form such as for instance in melted or solid form, as a floating film or gel, spray or aerosol, or atomised dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/30—Ink jet printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2200/00—Printing processes
- B41P2200/40—Screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/12—Screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/50—Screen printing machines for particular purposes
Abstract
The invention discloses an online sizing printing system and process based on a single pass digital printing machine, and relates to the field of cloth printing, wherein the online sizing printing system comprises a sizing structure and a printing structure, and the sizing structure is used for coating foaming slurry on the surface of a fabric; the output end of the sizing structure is connected with a printing structure, and the printing structure comprises a single pass digital printing machine. According to the invention, the foaming slurry is combined with the single pass digital printing machine for use, and the ink is supported by the foaming slurry in the spray printing process and can float on the upper layer of the fabric, so that the surface of the fabric after spray printing is brighter; and the steps are simple, and the cost of a plurality of working procedures is reduced.
Description
Technical Field
The invention relates to the technical field of cloth printing, in particular to an online sizing printing system based on a single pass digital printing machine and an online sizing printing process.
Background
The process of forming patterns on the fabric by using the dye or the paint is fabric printing, different color patterns can be formed on the fabric through a printing process, and the requirements of various consumer groups on the fabric are met. Among various printing technologies, digital printing is a relatively advanced process, the digital printing equipment can directly print the required patterns on the surface of the fabric, the color gamut is wide, the image is clear and fine, the use of chemical reagents and the environmental pollution are reduced, especially the appearance of Single-pass machines brings new promotion to the digital printing technology, and new power is injected into the traditional textile industry.
Because the ink for digital printing is water-soluble, the textile must be sized before spray printing, and the auxiliary agent required for fixing color is coated and applied on the textile, so that after the ink is spray printed, the size and the spray printed ink can make chemical reaction, and the ink can be fixed on the surface of the textile.
For the printing requirements of fabrics, the size applied in the sizing process needs to reach 100-150g/m2And after sizing, drying the sizing agent to solidify the sizing agent on the surface of the fabric so as to perform the subsequent ink-jet printing step, otherwise, the ink seeps out on the wet surface and cannot form a clear printing pattern. For example, a method for producing a digital printing textile disclosed in the invention patent application with publication number CN107059445A and an inkjet printing process for a cotton fabric disclosed in the invention patent with publication number CN103469642B both describe related processes of digital printing, and require drying the fabric after a sizing treatment process, and specific steps and parameters for drying after sizing are also described in detail in the attention on sizing before digital printing published by linwei of technical personnel of shanghadiling chemical limited, and the sizing process of a sizing machine is described in detail.
After sizing and drying, the hardness of the fabric rises, the fit degree between the fabric and a conduction band of a digital printing machine drops, the conduction band needs higher viscosity to keep the fabric smooth, more glue is needed, cloth hair on the fabric is adhered to the conduction band, pollution of the conduction band is caused, and even after a subsequent scraper is cleaned, water stain pollution can still be formed on the conduction band, so that the subsequent printing production process is influenced.
The dried fabric is subjected to dry-type spray printing, in the spray printing process, certain negative pressure adsorption is formed on the fabric by spray printing equipment, impurities or cloth wool attached to the upper side of the fabric are adsorbed and then are upright or certain, and the spray heads for spray printing can be blocked, so that the quality stability of the spray printing is influenced.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
The invention aims to solve the problems and provides an online sizing printing system based on a single pass digital printing machine.
The technical purpose of the invention is realized by the following technical scheme: a printing system based on online sizing of a single pass digital printing machine comprises a sizing structure and a printing structure, wherein the sizing structure is used for coating sizing agent on the surface of a fabric; the output end of the sizing structure is connected with a printing structure, and the printing structure comprises a single pass digital printing machine.
The present invention is preferably: the sizing structure comprises a circular screen sizing device.
The present invention is preferably: the sizing structure further comprises a foaming device, the foaming device comprises an output end and a recovery end, and the output end and the recovery end are respectively connected with the rotary screen sizing device to form a foaming slurry circulating supply loop.
The invention aims to solve the problems and also provides an online sizing printing process based on a single pass digital printing machine, and the printing process adopting the printing system comprises the following steps:
sizing treatment: coating the sizing agent on the surface of the fabric through a sizing structure to form a sizing agent layer on the surface of the fabric;
and (3) spray printing: spraying the sized fabric by using a single pass digital printing machine, and fusing and permeating the ink subjected to spraying and printing and the foaming slurry to the base fabric;
drying: drying the fabric subjected to jet printing processing;
and (3) after finishing: and steaming, washing and shaping the fabric to obtain the finished fabric.
The invention is further configured to: the slurry shown is a foamed slurry.
The present invention is preferably: the foaming volume ratio of the foaming slurry is 1: 3-1: 4, and the foam diameter of the foaming slurry is 1-3 mu m.
The present invention is preferably: the surface tension of the foaming slurry is 20-45dyn/cm, and the viscosity is 500-25000 Pa.s.
The present invention is preferably: the density of the applied foam slurry during the sizing process is 25-35g/m2。
In conclusion, the invention has the following beneficial effects:
foam slurry is coated on the fabric by adopting a circular screen sizing device directly between the printing of a single pass digital printing machine, so that sizing is realized, and then ink-jet printing is directly carried out, so that the continuous processing of sizing and printing is realized, the time and processing cost in the processes of loading and unloading cloth and process circulation are reduced, and the processing efficiency is improved;
the foaming size is adopted to replace the original size, the foaming size is formed by foaming the size auxiliary agent of the raw material, the size of the size can be increased through foaming in 3-4, the size equivalent to 1/4-1/3 of the raw material can completely cover the surface of the fabric in the process of using the foaming size, the use of the size is reduced, and the cost of the raw material is saved;
the gram weight of the slurry coated on the surface of the fabric by adopting the foaming slurry is reduced, the ink-jet printing can be directly carried out on the foaming slurry by adopting a single pass digital printing machine, the printed ink cannot obviously seep, and the pattern and the shape of the pattern are not influenced; therefore, the fabric can be directly subjected to ink-jet printing after sizing, the drying process cost is saved, and the defects caused by rolling before and after drying are reduced;
the fabric is covered by the wet foaming slurry during printing, the printing process is wet printing, cloth hair and dust impurities on the surface of the fabric are covered, the influences such as blockage of an ink nozzle and the like cannot be caused during the printing process, and the running stability of printing equipment can be improved;
the loose foam structure of foamed thick liquids formation in the upside of fabric, the ink receives the bearing of foamed thick liquids at the jet printing in-process, can float in the upper strata of fabric, will make the fabric surface after the jet printing brighter.
Drawings
FIG. 1 is a schematic structural diagram of an on-line sizing printing system based on a single pass digital printing machine according to the invention;
FIG. 2 is a first structural schematic diagram of a sizing structure according to the present invention;
FIG. 3 is a second structural schematic view of a sizing structure of the present invention;
FIG. 4 is a schematic view of the structure of the edge of the sizing cylinder of the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
FIG. 6 is a schematic structural view of a sizing cylinder and scraping structure of the present invention;
fig. 7 is a schematic view of the connection structure of the extrusion container and the rotating shaft of the invention.
Reference numerals: 1. a cloth feeding structure; 2. a sizing structure; 3. printing structure; 4. a drying structure; 5. sizing a circular screen; 51. a scraping structure; 6. a sizing section; 7. a ring groove; 8. a first inclined surface; 9. a step surface I; 10. a step surface II; 11. a discharging section; 111. a second inclined surface; 12. a material guide chute; 13. an extrusion cylinder; 14. a rotating shaft; 15. a support shaft; 16. an eccentric extrusion wheel; 17. an elastic support frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment discloses an online sizing printing system based on a single pass digital printing machine, which comprises a sizing structure and a printing structure, wherein the sizing structure is used for coating sizing agent on the surface of a fabric, and the printing structure is shown in figure 1; the output end of the sizing structure is connected with a printing structure, and the printing structure comprises a plurality of single pass digital printing machines; after the surface of the fabric is coated with the sizing agent, the fabric is input into a printing structure through a conveyer belt for spray printing, and the ink and the sizing agent are fused and permeated into the base fabric; and then the fabric is dried by a drying structure, and then the after-finishing process is carried out to finish the spray printing processing, so as to form the printed cloth.
The sizing process can adopt foaming slurry or water-based slurry, wherein the foaming slurry can be supported on the surface layer of the fabric, slurry reagents can be saved more compared with the water-based slurry, and the ink is supported on the surface layer of the fabric, so that the color and the pattern of the ink have better color and are linear.
The embodiment also discloses a printing process of online sizing based on the single pass digital printing machine, which adopts the printing system to print and comprises the following steps:
sizing treatment: coating the foaming slurry on the surface of the fabric through a sizing structure, wherein the coating density of the foaming slurry is 25-35g/m2；
And (3) spray printing: the sized fabric is subjected to jet printing by adopting a single pass digital printing machine, and ink is adhered to the fabric base fabric after jet printing and better permeates into the fabric base fabric, so that the fabric forms brighter and more saturated colors after post treatment;
drying: drying the fabric subjected to jet printing processing;
and (3) after finishing: and (3) steaming, washing and shaping the fabric to obtain the finished fabric.
This starching structure includes mould sizing apparatus and foaming device, and the foaming device includes output and recovery end, and output and recovery end are connected with mould sizing apparatus respectively, can carry the good thick liquids of foaming to the mould sizing apparatus in, and the clout backward flow is retrieved from the recovery end, carries out the foaming again and handles, forms the foaming thick liquids circulation supply circuit.
The foaming device adopts an intelligent foaming machine, the intelligent foaming machine generally performs foaming according to a foaming ratio of 1: 3-1: 4 in the foaming process, and the foaming generates micro-foam with the diameter of 1-3 mu m to form foam slurry; the surface tension of the micro-foam is generally 20-45dyn/cm, the viscosity is generally 500-25000Pa.s, and the micro-foam can be suitable for printing various fiber fabrics. The stability period of the foamed micro-foam white slurry reaches 24-48 h, the form of the foamed foam can be kept basically unchanged in the period, and the stability of the foam slurry is kept.
Moreover, the foaming slurry is colorless slurry, and mainly plays a role in wetting the surface of the fabric, forming a subsequent ink reaction solid color layer on the surface of the fabric, and forming color by the spray printing of the subsequent ink, so the concentration of the foaming slurry has small influence on the spray printing of the subsequent ink, and the foaming slurry has slight difference and almost no color difference influence. The foaming slurry specifically comprises a foaming agent, a surfactant, urea, a dye-resistant salt and baking soda, wherein the foaming agent can be one or a mixture of glycerol monolaurate, glycerol monooleate and glycerol monostearate; the surfactant can be one or more of fatty alcohol and ethylene oxide polymer, alkylphenol polyoxyethylene ether, polyoxyethylene octyl phenyl ether, octyl phenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether.
Sizing structure in the process of sizing the surface of the fabric, the density of the applied foam size is 25-35g/m2(ii) a The foam slurry is coated on the surface of the fabric and is contacted with the surface of the fiber on the surface layer of the fabric, and the liquid in the bubbles is quickly absorbed by the fiber through the capillary effect; because foam surface tension is low and moisture is few, can not deepen, thick liquids float in the top layer of fabric, and then the ink jet printing is on the thick liquids on top layer, and then in subsequent stoving, the ageing in-process, the ink can permeate the surface fabric backer better for the surface fabric forms more bright, more saturated color after the aftertreatment, and the colour volume that the same amount of ink can be on the top layer of fabric will improve, makes the color of fabric jet printing more bright.
The ink selected in the spray printing process comprises a humectant, a cosolvent, a preservative, an antifreezing agent, a surfactant and a leveling agent; wherein the humectant can be one or more of glycerol, butanediol, sorbitol, and propylene glycol; the cosolvent can be one or more of urea, acetamide, N-methyl pyrrolidone and ethylene glycol; the preservative is MIT or MTI; the antifreeze can be selected from ethylene glycol, polyethylene glycol 400, diethylene glycol, ethylene glycol monobutyl ether, etc.; the surfactant can be surfynol404 or surfyno 110; the leveling agent is byk333, digao 410 or SH-450.
Example two
The embodiment discloses an online sizing printing system based on a single pass digital printing machine, which is described in detail with reference to the figures 1-7 on the basis of the first embodiment; the rotary screen sizing device in the printing system specifically comprises a sizing rotary screen 5 and a material scraping structure 51, wherein certain foaming slurry is gathered in the sizing rotary screen 5, and a fabric bypasses from the lower side of the sizing rotary screen 5 to realize sizing; the scraping structure 51 is positioned at the inner side of the sizing circular net 5 and is pressed against the lower side surface of the inner periphery of the sizing circular net 5, so that foaming slurry input into the sizing circular net 5 can be extruded, and the slurry is coated on a fabric through the sizing circular net 5 to realize sizing; the scraping structure 51 may be a cylindrical extrusion cylinder 13 or a slurry scraper for extrusion coating of the slurry.
The sizing circular screen 5 is of a cylindrical structure with two through sides, the length of the sizing circular screen is larger than the width of the fabric, the middle position of the sizing circular screen 5 is a sizing section 6, the tail ends of the two sides are open discharging sections 11, and the fabric is sized on the sizing section 6 in the middle position of the sizing circular screen 5;
an annular groove 7 is formed between the upper sizing section 6 and the discharging section 11, foaming slurry flows towards two sides after being extruded by the scraping structure 51 and falls into the annular groove 7 for storage, so that foam breakage of the foaming slurry at two ends of the upper sizing circular net 5 is avoided, the size of the slurry is reduced after the foam is broken, the reagent amount of the slurry with the same size is increased, namely the concentration of the slurry is increased, and the reagent can be guided through the annular groove 7, so that the conditions of foam breakage and foam concentration increase are avoided;
a step surface I9 and a step surface II 10 with different heights are formed on two sides of the annular groove 7, and the step surface I9 is positioned on one side close to the sizing section 6 and is higher; the second stepped surface 10 is positioned at one side close to the discharging section 11 and is lower, so that a structure which inclines outwards and downwards obliquely can be formed; the height of the first stepped surface 9 is lower than that of the outer side of the sizing section 6, the first stepped surface 9 and the sizing section 6 are connected through a first inclined surface 8 which inclines outwards, and a downward inclined structure is formed on the lower side; the height of the stepped surface II 10 is slightly higher than that of the discharging section 11, the stepped surface II 10 is connected with the discharging section 11 through an inclined surface II 111 which inclines outwards, a downward inclined structure is formed on the outer side of the ring groove 7, a guide chute 12 is formed in the inclined surface II 111, the guide chute 12 is communicated with the ring groove 7 and the discharging section 11, and the bottom of the guide chute 12 is in an outwards inclined state, so that the effect of outward outflow of slurry is improved;
on the whole, a structure which is inclined downwards continuously is formed from the sizing section 6 to the discharging sections 11 at two sides, so that the foaming slurry can flow from the sizing section 6 to the flow channels at two sides, and the condition that the concentration of the slurry is too high due to the aggregation and fracture of the foaming slurry at two sides in the extrusion coating process is avoided; the slurry is temporarily stored and gathered at the inclined middle position through the annular groove 7, so that the slurry is prevented from being kept wet at the nearby position in the process of inclining the runner downwards, and the smoothness in the process from the slurry feeding section 6 to the discharge section 11 is improved; because the step-shaped structures of the first step surface 9 and the second step surface 10 are formed on the two sides of the annular groove 7, the slurry flows slowly and temporarily in the outward flowing process, the transverse distance of an inclined section can be shortened compared with that of a direct inclined surface, and the slopes of the first inclined surface 8 and the second inclined surface 111 are increased, so that the slurry can be rapidly kept flowing downwards in the inclined position; and because the outer sides of the first step surface 9 and the second step surface 10 on the two sides of the annular groove 7 are lower, the slurry can be prevented from reflowing at the position of the annular groove 7, and the condition that the cracked foam slurry reflows is avoided.
The outer side of the extrusion cylinder 13 is attached to the sizing section 6, and the inclined surface 8 extending outwards is separated from the extrusion cylinder 13 from the beginning to the position of the discharging section 11, so that a certain gap is kept; in the vicinity of this position, squeezing of the foam slurry can be reduced.
The scraping structure 51 of the circular screen sizing device is extruded and coated on the lower side of the sizing section 6, the sizing section 6 is of a middle arc-shaped sunken structure, and the foaming slurry can form a trend towards a middle flow channel under the action of self weight due to a slight arc-shaped structure; scrape material structure 51 and in extrusion starching process, produce the promotion to foaming thick liquids in starching mould 5, form outside extrusion trend, the motion trend of two directions can produce mutual extrusion, and then can keep thick liquids at the inside balanced position of keeping between two parties of starching mould 5, avoids thick liquids direct outside to flow under the pushing action of scraper structure, keeps the stability of thick liquids.
The scraping structure 51 is exemplified by a cylindrical extrusion cylinder 13, and the lower side surface of the scraping structure 51 can be tightly attached to the sizing section 6 which is concave downwards, so that the sizing stability of the sizing cylinder 5 is kept; the scraping structure 51 specifically comprises an extrusion cylinder 13 and a rotating shaft 14, wherein the extrusion cylinder has certain elasticity, the middle of the extrusion cylinder is supported by the rotating shaft 14, and the middle of the extrusion cylinder is supported by an elastic support frame 17 between the rotating shaft 14 and the inner periphery of the extrusion cylinder 13, so that the extrusion cylinder 13 has slight elasticity, and the extrusion cylinder can stably rotate due to the supporting performance of the rotating shaft 14; an extrusion device is further arranged in the sizing cylinder 5, downward pressure can be generated on the upper part of an extrusion cylinder 13 through the extrusion device, the extrusion cylinder 13 can be enabled to be downward slightly and completely, the lower side surface of the extrusion cylinder 13 is in a shape matched with the arc-shaped depression of the sizing section 6, the extrusion pipe and the sizing section 6 are kept to be tightly attached to form certain pressure, and therefore sizing agent can be effectively coated on the surface of a fabric; and after the extrusion cylinder 13 is extruded downwards in the middle, the middle is sunken downwards, and due to the downward inclined structure, certain gaps can be kept at the edge positions of the two sides, so that the foaming slurry can smoothly flow downwards, and the condition of foam breakage is avoided.
The extrusion device comprises a supporting shaft 15 and a plurality of eccentric extrusion wheels 16, the supporting shaft 15 is located on the upper side of the extrusion container 13, the eccentric extrusion wheels 16 are sleeved on the supporting shaft 15, the lowest end position of the eccentric extrusion wheels 16 can be adjusted by rotating the eccentric extrusion wheels 16, the lower end of the eccentric extrusion wheels is abutted to the extrusion container 13, the pressure on the extrusion container 13 can be adjusted by rotating, the extrusion container 13 is bent downwards, the radian of the extrusion container 13 and the radian of the sizing section 6 are mutually attached, and the extrusion container 13 can be smoothly extruded with the sizing cylinder 5.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The printing system based on the online sizing of the single pass digital printing machine is characterized by comprising a sizing structure and a printing structure, wherein the sizing structure is used for coating sizing agent on the surface of a fabric; the output end of the sizing structure is connected with a printing structure, and the printing structure comprises a single pass digital printing machine.
2. The printing system of on-line sizing based on single pass digital printing machine according to claim 1, wherein said sizing structure comprises a circular screen sizing device.
3. The printing system of on-line sizing based on single pass digital printing machine according to claim 2, characterized in that the sizing structure further comprises a foaming device, the foaming device comprises an output end and a recovery end, and the output end and the recovery end are respectively connected with the cylinder sizing device to form a foaming slurry circulation supply loop.
4. An on-line sizing printing process based on a single pass digital printing machine, which is characterized in that printing is carried out by adopting the printing system as claimed in any one of claims 1 to 3, and comprises the following steps:
sizing treatment: coating the sizing agent on the surface of the fabric through a sizing structure to form a sizing agent layer on the surface of the fabric;
and (3) spray printing: carrying out spray printing on the sized fabric by adopting a printing structure, and fusing and permeating the ink subjected to spray printing and the foaming slurry into the fabric;
drying: and drying the fabric subjected to jet printing processing to obtain the printed fabric.
5. A single pass digital printing machine based on claim 4The printing process of online sizing is characterized in that the density of the coated foam slurry is 25-35g/m in the sizing treatment process2。
6. The printing process of on-line sizing based on single pass digital printing machine according to claim 4, characterized in that the sizing agent is colorless foaming sizing agent.
7. The printing process of online sizing based on the single pass digital printing machine according to claim 6, characterized in that the foaming volume ratio of the foaming slurry is 1: 3-1: 4, and the foam diameter of the foaming slurry is 1-3 μm.
8. The printing process of on-line sizing based on single pass digital printing machine as claimed in claim 6, wherein the surface tension of the foaming slurry is 20-45dyn/cm, and the viscosity of the foaming slurry is 500-25000 Pa.s.
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| CN202111009010.8A CN113928000B (en) | 2021-08-31 | 2021-08-31 | Online sizing printing system and process based on single pass digital printing machine |
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| CN202111009010.8A CN113928000B (en) | 2021-08-31 | 2021-08-31 | Online sizing printing system and process based on single pass digital printing machine |
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| CN113928000B CN113928000B (en) | 2022-12-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714767A (en) * | 2022-04-22 | 2022-07-08 | 浙江海印数码科技有限公司 | Intelligent foam sizing device of online sizing printing equipment |
| CN114801497A (en) * | 2022-04-26 | 2022-07-29 | 浙江海印数码科技有限公司 | Foam slurry supply system of digital printing production line |
| CN115107347A (en) * | 2022-08-04 | 2022-09-27 | 浙江海印数码科技有限公司 | Single-pass automatic online sizing digital printing machine |
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| CN114714767A (en) * | 2022-04-22 | 2022-07-08 | 浙江海印数码科技有限公司 | Intelligent foam sizing device of online sizing printing equipment |
| CN114714767B (en) * | 2022-04-22 | 2022-11-22 | 浙江海印数码科技有限公司 | Intelligent foam sizing device of online sizing printing equipment |
| CN114801497A (en) * | 2022-04-26 | 2022-07-29 | 浙江海印数码科技有限公司 | Foam slurry supply system of digital printing production line |
| CN114801497B (en) * | 2022-04-26 | 2023-02-07 | 浙江海印数码科技有限公司 | Foam slurry supply system of digital printing production line |
| CN115107347A (en) * | 2022-08-04 | 2022-09-27 | 浙江海印数码科技有限公司 | Single-pass automatic online sizing digital printing machine |
| CN115107347B (en) * | 2022-08-04 | 2024-01-19 | 浙江海印数码科技有限公司 | Single-pass automatic online sizing digital printing machine |
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