JPH09268481A - One side printing of cotton blanket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a one side printing cotton blanket without dye penetration to the back side and having clear pattern on one side with the colorless or white backside face by carrying out screen printing of the surface of both side napped fabric of cotton. SOLUTION: Both face napping fabric of cotton or one side pile fabric of cotton is scorched and bleached and subjected to hair-splitting processing and sufficiently defibrated and the rear face is napped and the resultant both face napped fabric, etc., is printed so as to use W/O type emulsion in a relatively fine design place and use O/W type emulsion having lower viscosity than that of the W/O type emulsion and a color paste not mutually causing mixing of both emulsions in relatively larger dyeing area by a screen printing machine. The, the fabric is subjected to steam heat treatment without carrying out intermediate drying and cleaned, dried and subjected to finish treatment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-sided printing method for a cotton blanket having a clear surface pattern and a plain or white back surface, which is advantageous in terms of cost because intermediate drying is unnecessary. One-sided printing method.

[0002]

2. Description of the Related Art A blanket often comes into direct contact with the human body as a bedclothing, and it is required to have high heat retention and moisture absorption and soft feel. Due to good washability, the production volume is growing rapidly. As this kind of cotton blanket, there are a woven blanket that weaves a front fabric and a back fabric, and a tuft blanket in which a cotton thread is piled into a cotton base fabric using a tufting machine. Cotton blankets have much room for improvement in terms of production efficiency and touch.

As the pile material of the cotton blanket, a double knit material knitted by a double raschel knitting machine which is a warp knitting machine can be applied, and in this case, the production efficiency and feel of the cotton blanket can be considerably improved. Like the acrylic blanket, this cotton blanket is made by cutting a double-knitted material to form two pile knitting materials, one on top of the other, and a front knitting fabric and a back knitting fabric obtained from this pile knitting material are superposed in opposite directions. Generally, a blanket in which two hem cloths are sewn around the periphery is used.

[0004]

[Problems to be Solved by the Invention]
Generally, it is thick and heavy, and it is difficult to use in summer in terms of comfort and the cost is high. For this reason,
For each single-sided pile knit material obtained from double knit material,
It is popular to manufacture a single-sided double-sided pile cotton blanket by scraping the pile on the front side to the back side and raising the back side. 1
After printing a pattern on the surface of a single-sided pile knitted material, a piece of cotton blanket is scraped out from the pile on the front side to the back side for brushing treatment, so that the back side becomes a plain white surface pattern and the appearance Becomes very cheap.

For this reason, one piece of cotton blanket is printed so that the dye penetrates from the surface of the one-sided pile knit material to the root of the pile, and after fixing the dye, a part of the surface pile is scraped out to the back surface. In the case of woven blankets, exceptionally 1 to 6
It is also possible to weave a pattern from color dyed yarn to form a double-sided pile woven blanket. In a piece of cotton blanket,
If the pile is scraped to the back side after printing on the front side, the back side will have the same pattern as the front side but a slightly less clear pattern than the front side, while the woven blanket will be very expensive.

The present invention has been proposed in order to improve the above-mentioned problems relating to the printing of a cotton blanket, in which the pattern on the front surface is clear but the back surface remains plain or white, and the pattern An object of the present invention is to provide a method for single-sided printing of a reversible cotton blanket that does not cause defective products such as crying. Another object of the present invention is to provide a method for single-sided printing of a cotton blanket, in which the intermediate drying step is unnecessary and the production cost can be reduced by directly heating the double-sided brushed fabric of cotton after printing.

[0007]

In order to achieve the above object, in the single-sided printing method according to the present invention, the double-sided brushed fabric 5 of cotton is used.
When printing (Fig. 4) from the surface with a screen printing machine,
The dense piles 23 and 25 prevent the dye from penetrating properly and prevent the show-through of the design 7 (FIG. 4). That is, in the method of the present invention, both sides are raised before the printing step to prevent the backing of the dye with the dense piles 23 and 25, but if there is a step of performing the plain dyeing in the printing processing, the used dye is backed. In some cases.

The method of the present invention includes steaming, washing, drying, and finishing treatments after printing the double-sided brushed fabric 5, and at this time, nap raising treatment, loosening, shirring, and the like are also included. In the method of the present invention, after printing the double-sided brushed fabric 5, the fabric is subjected to a steaming heat treatment without intermediate drying, whereby the fabric is subjected to a steaming heat treatment in a wet state, and at this time, the weeping of the pattern or the dye It is necessary to select a dye that does not promote the internal permeation and to adjust the composition and viscosity of the color paste.

In the method of the present invention, for example, a reactive dye is used for printing the double-sided brushed fabric 5, and the reactive dye is a water-soluble dye having a reactive group that chemically bonds to cellulose in the presence of alkali, and is generally clear. The hue can be obtained, the fastness is excellent, and the dyeing method is simple and easy to use. As a color paste containing a reactive dye, for example, W / O used for a relatively fine pattern
The type emulsion is combined with the O / W type emulsion which is used in a portion having a relatively large dyeing area. This W / O
The type emulsion has a higher viscosity than the O / W type emulsion, and does not mix with the O / W type emulsion by increasing the oil content. These emulsions have relatively high viscosities and are adjusted so that they do not penetrate to the back surface of the double-sided brushed material 5.

The double-sided brushed fabric 5 used in the method of the present invention may be either a knitted fabric or a woven fabric, and the material thereof is cotton alone or a mixed fiber of cotton and acrylic, wool, silk, cashmere, nylon, polyester or the like. . In order to manufacture the double-sided brushed fabric 5, for example, the pile yarn 1 of the cotton double-knitted material 3 is center-cut, and the obtained two single-sided pile knitted fabrics 4 are refined and
After the bleaching treatment, a hair splitting process is performed to sufficiently defibrate, and the back surface of the single-sided pile knitted fabric is raised beforehand.

In order to form a colored blanket with a colored back surface, the double knit material 3 (FIG. 1) knitted by a warp knitting machine is subjected to continuous dip treatment, and then the pile yarn 1 is center cut. The single-sided pile knitted fabric 4 (FIG. 2) is separated, and then the surface printing treatment is performed. It is also possible to use dyed pile yarns of various colors as the pile yarn 1. In this case, the dyed pile yarn on the surface does not become unclear in the printing process after knitting the double knit material 3. It is dyed lightly or in a dark color that does not leave the color of the dyed pile yarn.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described with reference to the drawings. A double Russell knitting machine (not shown) manufactured by Karlmeier is used to knit the double knit material 3 shown in FIG. Both the pile yarn 1 and the base fabric 2 to be knitted are cotton yarns. In this double Russell machine, for example, five guides (bearings) are arranged for two latch needles, and a large number of sets of these guides are arranged in a straight line direction in a length corresponding to the blanket width. Then, the base fabric 2 is independently knitted by the warp knitting yarn and the weft insertion yarn by the four guides, and the front and rear base fabrics 2, 2 are connected by the pile yarn 1 by the one central guide and the double knit material 3 Organize.

The double-knitted material 3 is then sent to a knife cutting device (not shown). In this knife cutting device, the double-knitted material 3 is continuously fed from the lower side to the upper side through a square, and the double-knitted material 3 is setter-cut along the line a in FIG. 1 by an endless band knife that rotates horizontally. After forming two single-sided pile knitted fabrics 4, the knitted fabrics 4 are separated into right and left and wound on the opposite side of the roll.

In the scouring and bleaching process, the single-sided pile knitted fabric 4 is sent to a vat bleaching device (not shown), which passes through a dipping tank containing a solution of the scouring agent and the bleaching agent and then squeezed with a roll padder, The reaction is accelerated in the steamer with saturated steam. After this, the single-sided pile knitted fabric 4 is sequentially passed through a plurality of washing machines whose water temperatures are set to be gradually lower and washed. This washing machine has, for example, 6 tanks arranged in series, and the hot water temperature of each washing machine is about 80 to 40 ° C.
It is preferable to set the level low stepwise. The one-sided pile knitted fabric 4 washed with water is dehydrated and then circulated in a hot air chamber to be dried, and the size thereof is generally stabilized by using a pin tenter dryer.

After scouring and bleaching the one-sided pile knitted fabric 4, the pile yarn 1 of the one-sided pile knitted fabric is split and sufficiently defibrated to form a pile 23. Then, using a raising machine 24 (Fig. 3) such as a needle cloth roll, the single-sided pile knitted fabric 4
The back surface 6 of is fluffed to form a pile, and 35 to 50% of the surface pile fibers are diverted to the back surface by this nap. The bypass of the fibers considerably lowers the pile density on the surface, so that the basis weight of the pile yarn 1 is, for example, a full gauge full packing.

The double-sided brushed knitted fabric 5 (FIG. 4) thus obtained is fed into the magnet type automatic screen printing machine 20 through the square 21 shown in FIG. The square 21 having a substantially J-shaped side surface is brought close to the front part of the automatic screen printing machine 20, and a plurality of feed rollers 3 for feeding the raised knitted fabric 5 upward.
4 is rotatably attached, and the raised knitted fabric 5 is piled up while being shaken down inside one side thereof. The automatic screen printing machine 20 shown in FIG. 5 has a belt 22 along a printing table.
Is installed. The belt 22 is a horizontal traveling endless conveyor belt that returns under the printing table and has a double-sided raised knitted fabric 5 attached to the surface of the belt.

At the front part of the screen printing machine 20, a dust removing beater is installed in the transport passage of the raised knitted fabric 5, and a dust removing brush is arranged at the tip of the belt 22. The automatic screen printing machine 20 is divided into a plurality of (for example, 16) screen forms 8. In each screen form 8, a screen gauze in which the same color portion of the blanket pattern is divided and photoengraved is set, and a roller (not shown) for stretching the color paste is attached to the screen gauze so as to be horizontally movable. Each screen form 8 repeats vertical movements at a constant rhythm, and when it is located above, the belt 22 runs, and when it moves downward and comes into contact with the belt 22, the belt stops.
The belt 22 is washed with water at the rear part of the printing table and dried by the hot air nozzle at the center part of the table when the belt 22 returns to pass under the printing table.

The double-sided brushed knitted fabric 5 is, as shown in FIG.
It is fed from the roll roll 33 by the feed roller 34,
It is shaken off from above and temporarily held in the square 21. The raised knitted fabric 5 is connected to the opposite end of the next knitted fabric by a sewing machine (not shown) when the opposite end of the previous knitted fabric is visible in the square 21 and enables continuous running. The raised knitted fabric 5 in the square 21 is continuously pulled out by the feed roller 37 with the surface pile 23 facing upward, and is beaten with a beater to remove fiber waste before being conveyed to the tip of the belt 22. The raised knitted fabric 5 carried to the tip of the belt 22 is pressed by the press roller 3
The base cloth surface of the knitted fabric is brought into close contact with the belt 22 by 6.
While the raised knitted fabric 5 is being conveyed by the belt 22, the pile surface of the knitted fabric is continuously further dust-removed by a brush, and then a plurality of divided screen forms 8 are sequentially printed one by one.

In each screen form 8, a screen gauze which is divided into the same color portion of the blanket pattern based on a predetermined processing instruction and is photoengraved is set, and the screen form frames 8 having the number of colors of the blanket pattern are used. . Each screen form 8 repeats up and down movements at a constant rhythm, and pushes out the color paste below the screen gauze to attach it to the surface pile of the raised knitted fabric 5. Each color paste is put in a trough to be sorted, and is conveyed to a predetermined screen form 8 by a processing instruction. The double-sided brushed knitted fabric 5 has a belt 2 for each blanket unit when the screen formwork 8 is lifted upward.
It is carried to the position of the next formwork 8 by 2 and another color glue is attached. When the blanket unit portion of the raised knitted fabric 5 passes through the entire screen form frame 8, printing of all colors is completed.

As the color paste to be added to the automatic screen printing machine 20, for example, W which is used for a relatively fine pattern portion.
/ Prepare the base paste of O-type emulsion. In order to produce this original paste, a paste material (trade name: PC powder A-10),
Emulsifier (trade name: Emulcon H), reduction inhibitor (trade name: MB), white kerosene (trade name: mineral terpene), p
1000 volume of H conditioner (trade name: PH-608) etc.
Put in a liter glue dissolver and dilute with water. A reactive dye (neutral fixing type) diluted with water is added to the base paste, and an appropriate auxiliary agent is added if desired.

As the other added color paste, the original paste of the O / W type emulsion to be used in a portion having a relatively large dyeing area is prepared. In order to produce this original paste, a paste material (trade name: PC
Powder W), Emulsifier (Product name: Emulcon AN Conc), Anti-reduction agent (Product name: MB), White kerosene (Product name:
Mineral terpen), pH adjuster (trade name: PH-60)
8) etc. are put into a 1000 liter capacity dissolution vessel and diluted with water. The W / O type emulsion has a higher viscosity than this O / W type emulsion, and both emulsions do not mix with each other. These emulsions have a relatively high viscosity and do not penetrate to the back surface of the double-sided brushed material 5.

Each screen form frame 8 repeatedly moves up and down at a constant rhythm, and when it descends downward, it carries the color paste placed on the end of the screen gauze while pressing it to the other end by a roller (not shown), The glue is extruded below the screen gauze and attached to the raised knitted fabric 5. The pressure condition by the roller is adjusted according to the degree of pile penetration in each color paste, and is set to a pressure at which the color paste does not reach the back surface of the double-sided brushed material 5.

Raised knitted fabric 5 on which the surface pile 23 is printed
After printing, it is sent to a steamer 9 (Fig. 6), and in the steamer, it is suspended in a loop on a hanging bar 38 connected to a conveyor chain, and immediately steamed with saturated steam for a predetermined time to accelerate the dyeing reaction, thereby dyeing the dye. To fix. The steamed and heat-treated raised knitted fabric 5 is discharged from the steamer 9 and is generally placed on the pallet 39 by a shaker for a predetermined length. Although not shown, the raised knitted fabric 5 on the pallet 39 is placed on the pallet again by reversing the anti-front end portion of a predetermined length and the rear end portion in the reversing device, and printing in the predetermined length. It is preferable to make the elapsed time from washing to washing uniform.

The steam-heat treated raised knitted fabric 5 is first passed through a washing tank 40 having a capacity of 500 liters prepared by adding a detergent to hot water of 60 to 70 ° C. in a vibro water washing machine 10 (FIG. 7) for soaping. As a result, excess dyes, sizing materials, auxiliaries and the like used in the printing process are removed from the napped knitted fabric 5, and then the remaining 3 to 4 hot water washing baths 41 in the vibro washing machine 10 are thoroughly washed with water.

The brushed knitted fabric 5 washed with water is washed again with the washing tank 42.
Continuously sent to Sprajet 11 (Fig. 7) via
In the splat jet, the lower rubber roller 43 and one metal roller 44 are used to squeeze, and the other metal roller 45 is used to squeeze into the flexible tank 46. The flexible tank 46 has 6
A softening agent is added to hot water at 0 ° C., and a plurality of mangles 47 repeatedly move in and out of the softening bath 46. The napped knitted fabric 5 that has left the flexible tank 46 has an upper rubber roller 48 and the other metal roller 4
The sheet is squeezed at 5, and further fed while being squeezed by one of the metal rollers 44. Rubber rollers 43, 48 and metal rollers 44, 45
It is preferable that compressed air is injected into the space formed by and by a compressor (not shown), and the throttling effect is enhanced by continuously blowing out the air.

The softened brushed knitted fabric 5 corrects the skewed texture and the curved texture by a set 51 (FIG. 7) of the skewed roller and the curved roller. After this, in the pin tenter dryer 12 (FIG. 8), attach both end sides to the tenter clips 52.
It is grasped by and introduced into the hot air chamber 13 (FIG. 8) while extending the width. The pin tenter dryer 12 has an internal temperature of 8 chambers and 3 chambers of 120 ° C. and a cloth speed of 10 to 20 m / min.
The steam heater is used as a heat source and has a large number of outlets arranged in multiple stages. The raised knitted fabric 5 that has entered the hot air chamber 13 swirls and runs in a zigzag manner at a number of rollers arranged at a predetermined interval, and the cloth accommodation length in the hot air chamber 13 is approximately 1
Reach 00m. By properly determining the vertical position of the outlet, the hot steam coming out of the outlet comes into contact with the back surface pile 25 of the raised knitted fabric 5, but the printed surface pile 23.
There is no direct contact with.

As a result, the raised knitted fabric 5 is circulated in the pin tenter dryer 12 and circulated in the hot air chamber 13 to be dried. The dried raised knitted fabric 5 is turned by a 45 ° skew roller (not shown) and exits the pin tenter dryer 12 in the vertical direction. Hot air chamber 13
The napped knitted fabrics 5 that have come out of the above are piled up while being folded back on a pallet in which a trolley is set by a shake-off device (not shown).

The double-sided raised knitted fabric 5 after the surface printing is subjected to re-raising treatment as desired, and then subjected to finishing and finishing such as loosening, shirring and polisher. Finally, the double-sided brushed fabric 5 is cut into a predetermined size for each sheet, and the periphery is sewn with a sewing machine to complete a double-sided pile blanket with a clear front surface and a plain or white back surface.

[0029]

EXAMPLE An example of a color paste used for printing one side of a cotton double-sided brushed knitted fabric 5 in a magnet type automatic screen printing machine 20 is as follows. In the following table, x and y are printing patterns. It depends on the hue.

Color paste of W / O type emulsion: Reactive dye (neutral fixing type) x% Paste material (trade name: PC powder A-10) 2.5% Emulsifier (trade name: Emulcon H) 0.5 % Anti-reduction agent (Brand name: MB) 0.5% White kerosene (Brand name: Mineral terpene) 16.0% pH adjuster (Brand name: PH-608) 0.3% Water y% ───── ──────────────────────────── 100%

Color paste of O / W type emulsion: Reactive dye (neutral fixing type) x% Paste material (trade name: PC powder W) 1.5% Emulsifier (trade name: Emulcon AN conc) 12.0% Anti-reduction agent (Brand name: MB) 0.5% White kerosene (Brand name: Mineral terpene) 8.0% pH adjuster (Brand name: PH-608) Trace water y% ────────── ──────────────────────── 100%

The above-mentioned color paste is used to print on the surface of the double-sided brushed knitted fabric 5 with a magnet type automatic screen printing machine 20. After printing, the double-sided brushed knitted fabric 5 is immediately fed into the steamer, and the steamer is steamed at 98 to 100 ° C. (saturated steam) for 15 to 20 minutes.

[0033]

Industrial Applicability According to the method of the present invention, a fluffing treatment is performed on both sides before printing a single piece of cotton blanket to produce a cotton blanket having only a pattern on the front surface and a plain or white back surface. When the raising treatment on both sides is performed before the printing treatment, the dense pile prevents the dye from permeating during the printing treatment and prevents back lining, so that a reversible cotton blanket can be obtained. In the method of the present invention, the composition and viscosity of the dye and the color paste used for screen printing are selected, and the roller pressure condition in each screen form is adjusted according to the pile penetration degree of the color paste, so that the color paste is coated on both sides. Set it so that it does not penetrate to the back of the brushed fabric.

The method of the present invention uses, for example, a reactive dye so that the pattern on the surface of a single cotton blanket becomes clear. As a color paste containing a reactive dye, a W / O type emulsion used in a place with a relatively fine pattern and an O / W type emulsion used in a place with a relatively large dyeing area are combined so that they do not mix with each other. . By using these emulsions, it is possible to prevent the pattern from crying out in wet steaming, and to appropriately perform printing on only one side by proper penetration.

The method of the present invention is different from the conventional method for printing a cotton blanket, in which a double-sided brushed fabric is obtained by performing a steaming heat treatment immediately after printing a double-sided brushed fabric and then performing a steaming heat treatment without intermediate drying after printing. In, the dyestuff is subjected to steaming heat treatment in a wet state. Since the method of the present invention omits the intermediate drying operation after the printing process, the overall operation time is shortened, the heat energy required for the intermediate drying becomes zero, and the addition of urea is unnecessary for wet steaming. It is also advantageous in terms of cost.

[Brief description of drawings]

FIG. 1 is an enlarged schematic cross-sectional view showing a double knit material knitted by a double Russell knitting machine.

FIG. 2 is an enlarged schematic cross-sectional view showing a single-sided pile knitted fabric obtained by center-cutting a double-knitted material.

FIG. 3 is a schematic cross-sectional view showing a state in which a single-sided pile knitted fabric is raised.

FIG. 4 is a schematic cross-sectional view showing a double-sided brushed fabric for single-sided printing.

FIG. 5 is a schematic sectional view showing a main part of an automatic screen printing machine.

FIG. 6 is a schematic cross-sectional view showing a steamer used in continuous printing processing.

FIG. 7 is a schematic cross-sectional view showing a set of a vibro washing machine, a splajet, and an oblique roller and a curved roller.

FIG. 8 is a schematic cross-sectional view showing a pin tenter dryer.

[Explanation of symbols]

 1 Pile yarn 2 Base fabric 3 Double knit material 4 Single-sided pile knitted fabric 5 Double-sided brushed fabric 6 Backside of knitted fabric

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location D06P 5/00 116 D06P 5/00 116A

Claims (5)

[Claims] 1. A double-sided brushed fabric of cotton is printed from the surface by a screen printing machine so that the dense pile can appropriately prevent the dye from penetrating to prevent back-lining, and further heat, wash, dry and finish. By doing so, a single-sided printing method of a cotton blanket whose surface is clear and whose back surface remains plain or white. 2. A cotton double-sided brushed fabric is printed from the surface to appropriately prevent the dye from permeating through a dense pile to prevent back lining, and to be steam-heat treated without intermediate drying, and then washed. A single-sided printing method for a cotton blanket that has a clear pattern on the front surface and remains solid or white on the back surface after drying and finishing. 3. A one-sided pile fabric made of cotton is subjected to scouring and bleaching treatment and then defibrated to be sufficiently defibrated, and the back face of the knitted fabric is raised to perform double-face raising of the pile fabric. By printing the background from the surface with a screen printing machine, the dense pile prevents the dye from penetrating properly to prevent back lining, and a steam heat treatment is performed without intermediate drying, followed by washing, drying and finishing. By doing
A single-sided printing method for a cotton blanket with a clear pattern on the front and a plain or white back. 4. A double pile knitted material knitted by a warp knitting machine is subjected to continuous dip dyeing treatment, and then the piled yarn is center-cut to separate it into two single-sided pile knitted fabrics. A method according to claim 1, 2 or 3 in which a colored blanket is formed. 5. After brushing both sides of a cotton one-sided pile fabric,
In the one-sided printing method in which printing, steaming, washing, drying, and finishing are immediately performed, the W / O emulsion used for a relatively fine pattern part and a relatively dyed area are used in the printing using a reactive dye. The O / W emulsion used for large areas has a W / O emulsion
A color paste for cotton blankets, which has a higher viscosity than the W-type emulsion and both emulsions do not mix with each other.