JPS6131252A - Manufacture of multi-color synthetic resin lace - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to the production of multicolored synthetic resin lace used for tablecloths and the like.

[Prior art] Ink is printed only on the protruding parts of a synthetic resin lace,
Conventional methods for coloring multicolor patterns include, for example, picking up ink from an ink tank with a data roller, adjusting the amount with a doctor knife, etc., and printing on the protruding parts of the lace via a mixing roller and an inking roller. A known method for producing lace fabric is to fill a concave portion of the engraved surface of a molded plastic with a resin paste, heat it to gel, then lower the temperature, take it up on an undersheet, and use it for printing.

[Problems to be Solved by the Invention] With such conventional methods, especially when there are only a few areas to be colored, there is a problem that the areas that are not colored are smeared with ink.
There was a problem that quality deteriorated.

[Means for solving the problem] A lace forming roll is provided oppositely on a lace holding belt supported by a pair of belt wheels rotating in the same direction, and a lace fabric is formed by supplying molten resin to the lace forming roll. At the same time, the lace fabric is cooled and taken up onto a lace holding belt, and a heated colored ink is applied to desired locations on the surface of the lace fabric through banks formed between an inking roll and a kneading roll. It is supplied through a printing cylinder, allowed to dry, and then cooled and then applied to the desired locations on the surface of the lace material through a bank formed between a heat-adjusted coloring ink cooler and a kneading roll to the printing cylinder. A multicolored pattern is formed by repeating the step of supplying and adhering the material through the sheet material a required number of times, and a coating film is further applied to the surface of the sheet material.

[Example] In the figure, 1 is a lace forming roll installed opposite to the outlet of the die 3 that discharges the resin melted and gelled by the extruder 2.
A concave shape is formed on the surface.

Reference numeral 4 denotes a lace holding belt which is brought into rolling contact with a belt sheave 5.5' rotating in the same direction, and the lace holding belt 4 is brought into contact with the lace forming roll 1 by one belt sheave 6 and a support roll 6. There is.

ja and 7b are plate cylinders provided on the lace holding belt 4, respectively, and to these plate cylinders 7 and 7b, impression cylinders 3m and 3b are arranged opposite to each other via the lace holding belt 4. 7m
, 7b is formed with a letterpress having the outline of a pure kite shape, and its diameter is formed in an integral ratio with the lace forming section 1, so that it rotates at the same angle as the lace forming section 1. ing.

9a and 9b are inking rolls provided in contact with the plate cylinders 7m and 7b; 101 and 10b are kneading rolls provided in contact with the inking rolls 9m and 9b;
Width adjustment plates are attached to both ends of the kneading oars 10m and 10b, respectively.

12&, 12b are ink tanks with lids, and ink pumps 1s&, Japanese bC7 flexible tube Ma.

1411 is connected so that its tip can flow an appropriate amount of colored ink between the inking oars 9m and 9b and the kneading oars 10B and 10b with an appropriate amplitude and speed.

15a and 15b are hot water tanks equipped with a temperature control heater 16 and a thermometer 17, respectively, and the hot water tanks 15&, 15b are heat retaining tanks 12C for the ink tanks 12g and 12b, as shown in FIG.

12d, and the piping with the hot water pump 19 installed, version p7m, fu b1 fillet a-le 9a, 9'b, @suo
-#10&, 10b and ink pump 13a
, 13b to circulate and heat the dry water, respectively.
I try to regulate the temperature. Note that the heating medium for these temperature adjustments is not limited to the hot water in this example;
Various types can be used.

The viscosity of the colored ink filled in each ink tank 12m, 12b is determined by using a mixture with a small amount of solvent suitable for printing at a temperature of around 60＠C in the heat-retaining tanks 12c, 12d. Colored ink adjusted to the desired level is passed through ink pumps 13a and 13b, respectively, to nine inking rolls,
Conditions are set so that an appropriate amount of the powder is allowed to flow between the kneading rolls 9b and the kneading rolls 10a and 10b.

Fleshing roll ga, 9b and kneading ts -k 10 m,
10 b Ic The colored ink that has flowed down is placed on the width adjustment plate 11.
H to prevent it from spreading more than necessary, and in addition, the inking rolls 9a, 9 and the kneading roll 106. An ink bank is formed between 1Ob, and the colored ink, in which the dispersion of pigments is balanced, is transferred from the inking rolls ga and gb to the plate cylinders 7a and 7b, and is deposited on the surface of the plate cylinders 7a and 7b. Attach only to the protruding parts of the

A lace holding belt 4 is provided below the lace forming roll 1.
A cooler 21a is provided on the upper surface of the lace holding belt 4, sandwiching each plate cylinder 7a, 7b.
, 21'b and dryers 22m, 22b are provided.

In order to simplify the explanation, FIG.
The lace holding belt 4 is sandwiched between the lace holding belt 4 and presser rolls and receiver rolls are provided above and below, and the covering film A 26 is supplied to this pair of rolls via a supply roll. 2
7 is a heater for heating the covering film Z, and 7 is a cooler for cooling it. 29 is a peeling roll installed opposite to the belt pulley b', and ao and ao are product take-up rolls.

In the apparatus configured in this way, the resin melted and gelled in the extruder 2 is filled into the concave mold of the lace forming roll 1 through a doctor knife attached to the outlet of the die 8, and a pattern is formed on the surface. As the lace forming roll 1 rotates, the lace fabric comes into contact with the lace holding belt 4, and is cooled by applying a cooler to the lace holding belt 4.
It adheres to the upper surface and is subsequently cooled from the upper surface to room temperature by the cooler 21a, and the plate cylinder 7 remains on the lace holding belt 4.
The protruding parts are colored by being pressed between the printing cylinder a and the impression cylinder 8&, but unnecessary parts are colored by a letterpress provided on the printing cylinder in accordance with the outline of the shape suitable for the coloring range. At this time, the colored ink on the surface of the plate cylinder 7a has been heated and is hotter than the lace fabric which has been cooled to room temperature, so when the colored ink comes into contact with the lace fabric, The lace material absorbs heat and cools down, so the 1st edition cylinder 7
In the layer of colored ink sandwiched between the a surface and the lace surface, a temperature gradient occurs from the high temperature plate cylinder side toward the mold temperature side. Therefore, the viscosity of the colored ink layer at that position increases from the plate surface toward the lace surface, so that at the end of printing, when the plate surface moves away from the lace surface, the colored ink film splits occur closer to the plate surface. , the amount of ink transferred to the lace surface is large, and a thick layer can be printed with 7 coats. This printed layer is dried in the dryer 22s1. Subsequently, the lace fabric is cooled by a cooler glb, placed on the lace holding belt 4 and pressed between the plate cylinder 7b and a press 11118b, applied with a second coloring, and dried in a drier 22b.

The covering film heated by heater d is superimposed on the surface of the lace material which has been colored in two colors in this way, and the presser roll and receiver are pressed together by separate rolls to join them together. After being cooled in the cooler Yu, the product 8 is peeled off from the lace holding belt 4 by a peeling roll 4, and is taken up by a take-up roll aO and rolled up into a stone.

When printing on paper, a major factor in printability is that the vehicle in the ink diffuses into the paper, but in the case of synthetic resin lace, it cannot be expected that the slag will seep into the base material and dry. , since the small amount of solvent in the ink accelerates drying and allows efficient transfer to the next process, coloring can be done by repeating the same process as the second printing process shown in Figure 1. Multicolored lace can be manufactured extremely efficiently.

In addition, in the case of manufacturing a multicolored lace lined with a film on the back side, as shown in FIG. The lace fabrics are stacked and fused together, and a product is obtained by following the same steps as described above.

[Effects of the Invention] As described above, since the manufacturing method of the present invention uses colored ink that has been heated and adjusted, it is possible to use ink with a small amount of solvent, and moreover, it is suitable for lace fabrics. When colored ink is applied, there is a temperature difference between the lace fabric and the ink, which creates a viscosity gradient in the ink layer, which contributes to shortening of the ink's drawability (threadability). Contamination of uncolored parts of the lace fabric can be prevented.

In addition, by using a moldy ink pad as in the example and not using an open duct roll, there is less evaporation of the solvent, which reduces the amount of solvent used and improves the occupational health environment in the manufacturing process. This can also contribute to improvement.

Figure 12) j is a partially enlarged view.

9b...Inking roll, 101.10b...Kneading roll.

- Covering film.

Claims (1)

[Claims] 1. A lace forming roll is provided oppositely on a lace holding belt supported by a pair of belt wheels rotating in the same direction, and molten resin is supplied to the lace forming roll to form a lace fabric. , the lace fabric is cooled and taken up onto a lace holding belt, and colored ink heated and regulated is applied to desired locations on the surface of the lace fabric through a bank formed between an inking roll and a kneading roll to a plate cylinder. The color ink is supplied through a bank formed between an inking roll and a kneading roll, and is then applied to the desired locations on the surface of the lace material through a plate cylinder. 1. A method for producing a multicolored synthetic resin lace, which comprises repeating the step of supplying and adhering the lace a required number of times to impart a multicolored pattern, and further applying a coating film to the surface of the sheet material. 2. A relief plate having a simple outline matching the coloring range of the lace material is formed on the surface of the printing cylinder to prevent colored ink from being supplied to the outside of the relief plate. A method for producing a multicolored synthetic resin lace according to item 1.