CN112111873A

CN112111873A - Cloth dyeing method of discontinuous patterns

Info

Publication number: CN112111873A
Application number: CN202010978911.7A
Authority: CN
Inventors: 戴佳智
Original assignee: Zhoulin Co ltd
Current assignee: Zhoulin Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2020-12-22

Abstract

A cloth dyeing method of discontinuous pattern, it is through the rotating process spraying dye liquor on the cloth waiting to dye of the cloth dyeing machine, after the whole length of the cloth waiting to dye is sprayed the dyestuffs by the dye liquor spray nozzle of the cloth dyeing machine at least once, wait to dye some of the cloth to form the wavy intermediate product in the cloth dyeing machine, then the liquid level of the dye liquor in the cloth dyeing machine rises gradually; then, the pressure in the dyeing machine is changed by utilizing short-time quick heating, so that one part of the intermediate product is gradually floated to the liquid level of the dyeing liquid, the other part of the intermediate product is soaked in the dyeing liquid, and then the temperature in the dyeing machine is kept for a period of time to finish color development, thereby generating the dyed cloth with discontinuous patterns.

Description

Cloth dyeing method of discontinuous patterns

Technical Field

The present invention relates to a cloth dyeing method, and more particularly, to a cloth dyeing method capable of providing discontinuous patterns.

Background

In the field of cloth dyeing, the dyeing method used for artificial fibers, such as Polyamide (PA), generally involves the step of adding acid to change the pH of the dyeing solution, so as to further bond the artificial fibers with acid dye molecules (linkage); in addition, it also generally involves various processes such as heating, color development, washing with water, and fixation.

At present, the dyeing method commonly used for the rope-shaped dyeing machine has the advantages that most of finished products are single in color depth, patterns (patterns) are fixed, and the product variability is low; if the product is required to have irregular or discontinuous patterns, an ink-jet printing machine is required; however, the conventional inkjet printing machine requires a plurality of working stations during the production of a product, which is labor-intensive and time-consuming, and although discontinuous patterns can be designed manually, the final product of inkjet printing still has a pattern repeatability within a certain length. Therefore, the conventional cloth dyeing method is lacked.

Disclosure of Invention

In view of the above, the present invention aims to provide a cloth dyeing method; wherein, in a dyeing machine, the dyeing machine dyes the artificial fiber cloth by adjusting and controlling the relevant process parameters, so as to achieve the effect of obtaining the finished product of the discontinuous pattern dyed cloth under the condition of consuming lower labor cost and time.

Based on long-term experience and continuous tests in the field of cloth dyeing, the inventor finds that in the process of cloth dyeing, through the control of relevant process parameters such as the running speed, step time and heating speed of a cloth dyeing machine, the condition of bonding between dye and fiber is interfered and influenced, and finally, the finished product has a discontinuous pattern which is quite different from that of a conventional product. Based on these findings, the inventors provide various aspects and embodiments of the present invention.

In one aspect of the present invention, a cloth dyeing method for generating discontinuous patterns is provided, in which a cloth to be dyed is placed in a dyeing machine, and a time taken for the full length of the cloth to be dyed to pass through a dye solution nozzle of the dyeing machine once is defined as a first period. The cloth dyeing method further includes a first step, the dyeing machine drives the cloth to be dyed to rotate within 1-2 times of the first period, the dye solution nozzle sprays a dye solution on the full length of the cloth to be dyed, and the liquid level of the dye solution in the dyeing machine is gradually increased; furthermore, the cloth dyeing method comprises a second step of raising the temperature in the dyeing machine from a first temperature to a second temperature; furthermore, the cloth dyeing method comprises a third step of maintaining the temperature in the dyeing machine at the second temperature to enable the cloth to be dyed to form a dyed cloth; during the first step, the cloth to be dyed forms a wavy intermediate product, and during the second step, the pressure in the dyeing machine is changed due to the temperature rise, so that one part of the intermediate product gradually floats above the liquid level of the dyeing liquid, after the second step is finished, one part of the intermediate product is above the liquid level of the dyeing liquid, and the other part of the intermediate product is soaked in the dyeing liquid, so that after the third step is finished, the dyed cloth formed by the intermediate product has discontinuous patterns.

According to an embodiment of the invention, the first period is at least 100 seconds.

According to an embodiment of the present invention, the second step is performed at a first temperature of 20 to 50 ℃ and a second temperature of 80 to 135 ℃.

According to an embodiment of the present invention, in the second step, the first temperature is raised to the second temperature at a temperature raising rate of 5 to 14 ℃/min.

According to an embodiment of the invention, in the second step, the machine provides a first rotation cycle, defined as passing the full length of the cloth to be dyed through the dye liquor nozzle once during a first period.

According to an embodiment of the invention, the dyeing machine stops rotating and makes the cloth to be dyed still while the second step is performed.

According to an embodiment of the present invention, the operation time of the third step is 40 to 60 minutes.

According to an embodiment of the present invention, in performing said third step, said dyeing machine provides said first rotation cycle, defined as passing the full length of said fabric to be dyed through said dye liquor nozzle once during a first period.

According to an embodiment of the present invention, when the third step is performed, the dyeing machine stops rotating to allow the cloth to be dyed to stand still.

According to an embodiment of the invention, the composition of the cloth to be dyed is selected from Polyester (PE), Polyamide (PA) or Cationic Dyeable Polyester (CDP).

According to an embodiment of the invention, the pH value of the dyeing liquor is between 3 and 9.

Drawings

In order to make the aforementioned and other objects, features, advantages and embodiments of the invention more comprehensible, the following description is given:

FIG. 1 is a schematic structural view of a rope-shaped cloth dyeing machine according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a rope-shaped cloth dyeing machine according to yet another embodiment of the present invention;

FIG. 3 is a flow chart of a dyeing method according to an embodiment of the present invention.

Wherein:

100: first rope-shaped cloth dyeing machine

110: barrel body

120: cloth storage space

130: cloth inlet and outlet

140: cloth guide wheel

150: dye liquor nozzle

210: dye liquor supply device

220: heat exchange device

230: pump for pumping liquid

30: second rope-shaped cloth dyeing machine

300: barrel body

301: storage area

302: stretching pipeline

303: extrusion and shrinkage pipeline

310: cloth guide wheel

320: dye liquor nozzle

C: cloth to be dyed

L: dye liquor

S1-S5: step (ii) of

Detailed Description

The following description provides different embodiments, or examples, for implementing different features of the provided subject matter. Specific examples of components and arrangements are described below to simplify the present disclosure and are not intended to be limiting; the size and shape of the elements are also not limited by the disclosed ranges or values, but may depend on the processing conditions of the elements or the desired characteristics. For example, the technical features of the present invention are described using cross-sectional views, which are schematic illustrations of idealized embodiments. Thus, variations in the shapes of the illustrations as a result of manufacturing processes and/or tolerances are to be expected and should not be construed as limiting.

Furthermore, the spatially relative terms, such as "below", "…", "below", "above" … "and" above ", are used for ease of describing the relationship between elements or features shown in the drawings; spatially relative terms may encompass different orientations of the component in use or operation in addition to the orientation depicted in the figures.

Fig. 1 is a schematic view showing a structure of a rope type cloth dyeing machine according to an embodiment of the present invention. Referring to fig. 1, a first rope-shaped cloth dyeing machine 100 includes a barrel 110, a cloth storage space 120, a cloth inlet and outlet 130, a cloth guide wheel 140 and a dye solution nozzle 150. It can be understood that, after the cloth C to be dyed enters the cloth storage space 120 through the cloth inlet/outlet 130, the cloth C is connected to the cloth guide wheel 140 to be driven by the cloth guide wheel 140; thus, when the first rope dyeing machine 100 starts to operate, the cloth C to be dyed can start to rotate in a specific period (in seconds/times) by the rotation and pulling of the cloth guide wheel 140, and the specific period is defined by the time that the full length of the cloth C to be dyed passes through the dye liquor nozzle 150 once.

The first rope dyeing machine 100 further comprises a dye liquid supply device 210, a heat exchange device 220 and a pump 230. It is understood that when a specific volume of the dye solution L is pumped into the dye solution supply device 210 through the pump 230, it can be further transported to the heat exchange device 220 to be controlled in temperature, and then injected into the cloth storage space 120 through the dye solution nozzle 150; thus, when the first rope-shaped cloth dyeing machine 100 starts to operate and the cloth C to be dyed rotates in a specific period, the full length of the cloth C to be dyed can be sprayed with the dye liquor L within a specific time, and the sprayed dye liquor L can be accumulated in the cloth storage space 120, and the liquid level of the dye liquor L in the cloth storage space 120 is gradually raised; in addition, a part of the cloth C to be dyed is soaked in the dyeing liquid L in the cloth storage space 120 and takes a wavy shape.

In addition, according to the general knowledge of the present invention, the dye supply device 210 can be connected to a dye injection device and an acid injection device in a non-limited manner, so as to serve as a way for a specific dye and a specific acid to enter the dye L for circulation, and it can be understood that the dye injection device and the acid injection device can be electrically connected to a control circuit, so as to further enable a user to control parameters such as the amount or rate of the specific dye and the specific acid to be injected into the dye L.

In various embodiments, the barrel 110 may be a sphere or a cylinder, but the invention is not limited thereto; the position of the dye nozzle 150 and the volume of the dye L can be adjusted according to the requirements by those skilled in the art.

FIG. 2 is a schematic view of a rope type cloth dyeing machine according to another embodiment of the present invention. Referring to fig. 2, a second rope-shaped cloth dyeing machine 30 includes a barrel 300, and a storage area 301 is disposed in the barrel 300 for storing a dyeing liquid L and a cloth C to be dyed; the barrel 300 is further provided with a stretching pipe 302 and a squeezing pipe 303, which are used to transport the cloth C to be dyed and the dyeing liquid L.

Referring to fig. 2, a cloth guiding wheel 310 is disposed inside the barrel 300 for driving the cloth C to be dyed; the tub 300 is further provided with a dye solution nozzle 320 for injecting the dye solution L.

As can be understood from the description of fig. 2, a user puts a specific length of the cloth C to be dyed into the barrel 300 and connects to the cloth guide wheel 310, and the cloth guide wheel 310 rotates to pull the cloth C to be dyed and rotate the cloth C to be dyed in a specific period (in seconds/times) set by the user, the specific period being defined by the time when the full length of the cloth C to be dyed passes through the dye liquor nozzle 320 once; the dye liquor nozzle 320 can inject the dye liquor L, which is sprayed on the cloth C to be dyed and flows to the stretching pipeline 302 and has a flow rate; in the stretching pipe 302, the flow rate of the dye liquor L is greater than the moving speed of the cloth C to be dyed, so that the cloth C to be dyed is in a stretched state; when the cloth C to be dyed and the dye liquor L are conveyed into the squeezing pipeline 303, the flow rate of the dye liquor L is reduced, and the cloth C to be dyed is squeezed into a wave shape; in addition, the dye liquor L is accumulated in the storage area 301 and has a liquid level height; it must be particularly noted that the level of the dyeing bath L represented in fig. 1 is only for illustration and is not intended to represent actual data or proportions; the cloth C to be dyed is immersed in the dyeing liquid L, and it is understood that the cloth C to be dyed takes on a wave shape after being squeezed and contracted.

In addition, the second rope dyeing machine 30 should be understood to have a related device for supplying dye solution for regulating and controlling the components of the dye solution, and a temperature regulating system for regulating and controlling the temperature of the dye solution L and the temperature inside the barrel 300; the above-described devices can be modified within the scope of the present invention by those skilled in the art. In addition, the actual position of the dye liquor nozzle 320 is different according to the different types of dyeing machines operated by users.

In some embodiments of the present disclosure, the dye liquor L comprises water, an equalizer, an acid liquor, and a dye; specifically, the dye is an acid dye or a disperse dye, and the dye solution L has a specific pH value, wherein the specific pH value is 3-9.

In some embodiments of the present disclosure, the fabric C to be dyed is Polyester (PE), Polyamide (PA) or Cationic Dyeable Polyester (CDP).

According to the embodiment of the present invention, the process flow of the cloth dyeing method is divided into dyeing, drying and setting; wherein the dyeing process is carried out in a rope dyeing machine, which can be reasonably understood as the first rope dyeing machine 100 of fig. 1 or the second rope dyeing machine 30 of fig. 2; more specifically, the cloth to be dyed is placed in the rope dyeing machine and then dyed with a specific volume of dye solution. It should be noted that the cloth to be dyed has a specific length and a corresponding area, but the parameters are not limited in the present invention and can be adjusted according to the general knowledge or requirements in the field of the present invention.

FIG. 3 is a step diagram of a dyeing method according to an embodiment of the present invention. Referring to fig. 1-3, it can be understood that the dyeing process further includes several steps, including: step S1, step S2, step S3, step S4, and step S5.

In step S1, the rope dyeing machine is adjusted and controlled to provide the cloth to be dyed with a first rotation period, wherein the first rotation period allows the full length of the cloth to be dyed to pass through a dye solution nozzle of the rope dyeing machine once within a first period of time; during the execution period 1-2 times of the first period, the rope dyeing machine sprays a dye solution on the cloth to be dyed through the dye solution nozzle, and the liquid level of the dye solution in the rope dyeing machine is gradually raised; it should be noted that, during step S1, the level of the dyeing liquid does not exceed two thirds of the height of a receiving space in the dyeing machine, and the receiving space can be reasonably understood as the cloth storage space 120 shown in fig. 1 or the storage area 301 shown in fig. 2. In addition, during step S1, the portion of the cloth to be dyed in the accommodating space is pressed to form a wavy intermediate product, and more specifically, the entire intermediate product is mostly immersed in the dyeing solution, and only a small portion of the intermediate product is pressed to protrude from the surface of the dyeing solution.

According to a preferred embodiment, the dye liquor has a specific pH value which is adjustable according to the properties of the dye contained in the dye liquor, so as to ensure that the environment of the dye liquor is suitable for binding the molecules of the dye with the fabric fibers. In addition, the first period is at least 100 seconds, and the rotation period is at least 100 seconds/circle; thus, the operation time of S1 is at least 100 seconds, preferably between 100 seconds and 200 seconds.

In step S2, the temperature in the rope-like cloth dyeing machine is raised to raise the dyeing liquid from a first temperature to a second temperature, the first temperature is about 20 to 50 ℃ of room temperature, and the second temperature is 80 to 135 ℃; the operation time of the step S2 is 5-10 times the first period, so that in step S2, the rope dyeing machine provides a heating rate to raise the first temperature to the second temperature, wherein the heating rate is 5-14 ℃/min; the temperature rise rate can cause pressure change in the closed containing space, so as to cause a part of the intermediate product in the containing space to gradually float to the liquid level of the dye liquor; specifically, after step S2 is completed, a part of the intermediate product is above the liquid level of the dye solution, and another part of the intermediate product is immersed in the dye solution, so that the effect of irregular and discontinuous patterns on the cloth in a specific area can be achieved after all steps are completed.

In a preferred embodiment, the first period is at least 100 seconds, and the rotation period is at least 100 seconds/turn; thus, further, the operation time of step S2 is not more than 1000 seconds, preferably 500 seconds to 1000 seconds.

In some embodiments, at step S2, the rope dyeing machine stops rotating, i.e. the cloth to be dyed is left to stand.

In step S3, the temperature inside the rope-shaped fabric dyeing machine is kept at the second temperature to achieve the effect of heat preservation and color development, further, the fabric to be dyed in step S3 is a dyed fabric, and it should be noted that the dyed fabric formed after the intermediate product is finished in step S3 is a discontinuous pattern. The running time of the step S3 is 40-60 minutes; in addition, according to an embodiment of the present invention, the second temperature is 80 to 135 ℃.

Specifically, during the execution of step S3, the rope dyeing machine provides the rotation period; in other embodiments, however, at step S3, the rope dyeing machine does not provide any rotation period, i.e. the cloth to be dyed is left to stand.

In step S4, the dyed fabric having completed step S3 is washed with water at a specific temperature; in step S5, a fixing agent is added to the rope dyeing machine to fix the color of the dyed fabric, and the components of the fixing agent can be adjusted according to different fabric materials. It is particularly noted that after the step S5 is completed, the water may be washed again at least once according to the requirement. The dyed fabric can then be removed.

Specifically, when the dyed fabric is dried after dyeing, a dryer can be used to remove the excess water in the dyed fabric; then, the dyed fabric after drying is shaped at a high temperature to further stabilize the size, color and shrinkage of the dyed fabric, thereby obtaining a finished product.

Claims

1. A cloth dyeing method for generating discontinuous patterns is to put cloth to be dyed in a dyeing machine, the time spent by the full length of the cloth to be dyed in one time passing through a dye liquor nozzle arranged on the dyeing machine is defined as a first period, and the method comprises the following steps:

a first step, the dyeing machine drives the cloth to be dyed to rotate within 1-2 times of the first period, so that the dye liquor nozzle sprays the dye liquor on the full length of the cloth to be dyed, and the liquid level of the dye liquor in the dyeing machine is gradually raised;

a second step of raising the temperature in the dyeing machine from a first temperature to a second temperature; and

a third step of maintaining the temperature in the dyeing machine at the second temperature to enable the cloth to be dyed to form a dyed cloth;

during the first step, the cloth to be dyed forms a wavy intermediate product, and during the second step, the pressure in the dyeing machine is changed due to temperature rise, so that one part of the intermediate product gradually floats above the liquid level of the dyeing liquid, after the second step is finished, one part of the intermediate product is above the liquid level of the dyeing liquid, and the other part of the intermediate product is soaked in the dyeing liquid, so that after the third step is finished, the dyed cloth formed by the intermediate product has a discontinuous pattern.

2. The method of dyeing cloth of claim 1, wherein the first period of time is at least 100 seconds.

3. The method of claim 1, wherein the first temperature is 20-50 ℃ and the second temperature is 80-135 ℃.

4. The method of claim 1, wherein in the second step, the first temperature is raised to the second temperature at a temperature raising rate of 5-14 ℃/min.

5. A cloth dyeing method as claimed in claim 2, wherein in said second step, said dyeing machine provides a first rotation cycle, defined as passing the full length of the cloth to be dyed through said dye liquor nozzle once during a first period.

6. A method for dyeing cloth according to claim 1 wherein in the second step the dyeing machine stops rotating and the cloth to be dyed is left to stand.

7. The cloth dyeing method according to claim 1, wherein the third step is performed for 40 to 60 minutes.

8. A cloth dyeing method as claimed in claim 2, wherein in the third step, the dyeing machine provides the first rotation period defined as passing the full length of the cloth to be dyed through the dye liquor nozzle once during a first period.

9. The cloth dyeing method according to claim 1, wherein in the third step, the dyeing machine stops rotating to allow the cloth to be dyed to stand.

10. The method of claim 1 wherein the pH of the dyeing liquor is between 3 and 9.

11. The method of claim 1 wherein the fabric to be dyed is selected from the group consisting of polyester, polyamide and cationic dyeable polyester.