CN110130024B - Single-sided hydrophobic finishing liquid feeding equipment and method for pure cotton home textile fabric - Google Patents

Abstract

The invention discloses a single-sided hydrophobic finishing liquid feeding device for pure cotton home textile fabrics, which comprises a finishing mechanism and a drying mechanism which are sequentially arranged, and is characterized in that the finishing mechanism comprises a finishing agent storage tank, a finishing agent conveying roller, a conveying belt, a belt hydraulic roller and a squeeze roller, the drying mechanism comprises a hot air drying device and a group of opposite cylinder rollers A and B which are sequentially arranged, the finishing agent conveying roller is arranged in the finishing agent storage tank, the belt hydraulic roller is connected with the finishing agent conveying roller through the conveying belt, the surfaces of the belt hydraulic roller and the squeeze roller are in contact, and the fabrics to be finished pass through between contact surfaces of the finishing agent storage tank and the squeeze roller. The invention also discloses a method for performing single-sided hydrophobic finishing on the fabric by using the single-sided hydrophobic finishing liquid feeding equipment for the pure cotton home textile fabric. The invention solves the problem that the moisture absorption comfort of the pure cotton home textile fabric contacted with a human body is affected after the hydrophobic finishing is adopted in the prior art.

Description

A liquid feeding equipment and method for single-sided hydrophobic finishing of pure cotton home textile fabrics

Technical field

The invention relates to a liquid supply device for single-sided hydrophobic finishing of pure cotton home textile fabrics, and also relates to a single-sided hydrophobic finishing method of pure cotton home textile fabrics using the equipment.

Background technique

Cotton fiber has good hygroscopicity, and pure cotton fiber textiles have good heat preservation properties without any irritation or side effects when in contact with the human body. They are beneficial and harmless in contact with the human body and have good hygienic properties. In humid areas with high ambient humidity, pure cotton home textile products tend to absorb moisture in humid environments, making people feel damp.

Chinese patent application (CN201610363717.1) discloses a durable hydrophobic finishing method for cotton fabrics, which includes: pretreating cotton fabrics, then padding and finishing in an acetoacetate-based modified natural polymer aqueous solution, and then pre-baking Treatment: The cotton fabric obtained by pre-baking treatment is padded and finished in a dispersion containing low surface energy compounds, cross-linking agents and micro-nano particles, and then dried to obtain a durable hydrophobic cotton fabric. The method of the present invention adopts the traditional padding process, which is simple to operate, short in time, does not require high-temperature baking, has good product uniformity and reproducibility, and is conducive to promotion; after the obtained cotton fabric has been soaped multiple times, the fabric still has Excellent hydrophobic properties.

Although the hydrophobic finishing of this padding process can improve the problem of pure cotton home textiles easily absorbing moisture in humid environments, it will also affect the hygroscopicity of parts that come into contact with the human body during use, thus affecting human comfort.

Chinese patent application (CN201510322840.4) discloses a finishing method for single-sided super-hydrophobic cotton fabric. It uses foam finishing technology to prepare silica sol foam finishing agent and water-based fluorine-containing polyacrylic acid water-repellent foam finishing agent, and scrapes them evenly in sequence. Apply to the surface of the cotton fabric to keep the liquid rate low, control the finishing agent only on one side of the cotton fabric without penetration, and then steam - bake - wash to form a coating on one side of the cotton fabric, so that the fabric can be coated on one side of the cotton fabric. The surface is roughened, and the surface free energy of the cotton fabric is greatly reduced, giving the cotton fabric single-sided superhydrophobicity.

Although this finishing method achieves the effect of single-sided finishing, because it uses scraping to apply foam finishing agent, on the one hand, the preparation of foam hydrophobic agent is more complicated, and the state of foamy finishing agent is not stable. On the other hand, scraping When applying, the dosage is difficult to control and is not suitable for mass and rapid production.

Contents of the invention

The purpose of the present invention is to provide a single-sided hydrophobic finishing liquid supply device and method for pure cotton home textile fabrics to solve the problems raised in the above background technology.

In order to achieve the above objects, the present invention provides the following technical solutions:

A kind of single-sided hydrophobic finishing liquid supply equipment for pure cotton home textile fabrics, including a finishing mechanism and a drying mechanism arranged in sequence. The finishing mechanism includes a finishing agent storage tank, a finishing agent transport roller, a conveyor belt, a hydraulic roller and an extrusion roller. The drying mechanism includes a hot air drying device and a set of opposite cylinder rollers A and B. The finishing agent transport roller is arranged in the finishing agent storage tank. The hydraulic roller It is connected with the finishing agent conveying roller through a conveyor belt. The surfaces of the hydraulic roller and the squeeze roller are in contact with each other, and the fabric to be finished passes between the contact surfaces of the two.

As a further solution of the present invention: the material of the conveyor belt is a material with certain hygroscopicity.

As a further solution of the present invention: behind the hydraulic roller and the squeeze roller, a hot air drying device and a cylinder roller A and a cylinder B are arranged in sequence, and the finishing fabric after passing through the hydraulic roller and the squeeze roller First, it is pre-dried by the hot air drying device, and then further dried by cylinder roller A and cylinder B.

As a further solution of the present invention: the surfaces of the cylinder roller A and the cylinder roller B are not tangent, and the cylinder roller A and the cylinder roller B rotate relatively.

As a further solution of the present invention: saturated steam is passed into the cylinder roller A and the cylinder roller B.

The present invention also provides another technical solution:

The method for performing single-sided hydrophobic finishing of pure cotton fabrics using the single-sided hydrophobic finishing liquid supply equipment in the aforementioned technical solution. The process flow is: padding finishing liquid → surface rolling → pre-baking → baking, specifically as follows Steps to proceed:

S1, prepare a hydrophobic finishing agent and add the finishing agent to the finishing agent storage tank

S2, perform hydrophobic finishing on one side of the fabric,

That is, the control equipment transports the fabric to be finished through between the hydraulic roller and the squeeze roller. The hydrophobic finishing agent is transferred to the hydraulic roller by the finishing agent transport roller and the conveyor belt. Under the joint action of the hydraulic roller and the squeeze roller, Control the uniform amount of liquid to transfer the finishing agent to one of the surfaces of the fabric to be finished.

S3, drying,

The fabric that has been finished on one side is transported to a drying mechanism for drying. The drying process includes pre-drying and baking.

As a further solution of the present invention:

In the S1, the composition of the hydrophobic finishing agent is:

The finishing agent content is 1-6%, the cross-linking agent content is 0.3-1.0%, and the rest is water;

The finishing agent is SENT GQ-625, and the cross-linking agent is an acrylic cross-linking agent.

As a further solution of the present invention: in the described S2, the pressure between the hydraulic roller and the squeeze roller is 10-30 psi, thereby controlling the rolling ratio to 60-80%.

As a further solution of the present invention: in the S3, the pre-baking temperature is 80-100°C, the pre-baking time is 2-5 minutes, the baking temperature is 100-140°C, and the baking time is 1-3 minutes.

As a further solution of the present invention: in the S3, the equipment used in the pre-baking is a hot air drying equipment, and the equipment used in the baking is a pair of cylinder rollers A and cylinder B.

Compared with the existing technology, the beneficial effects of the present invention are: single-sided hydrophobic finishing equipment for pure cotton home textile fabrics. By improving the structure of the post-finishing equipment, the single-sided hydrophobic finishing of pure cotton home textile fabrics is performed to achieve a single-sided hydrophobic effect. . This single-sided hydrophobic finishing technology is a new home textile fabric processing technology. It can not only retain the hygroscopic comfort of the inner layer of home textile fabrics, but also make the outer layer super hydrophobic, so that home textile fabrics are not susceptible to moisture in humid areas during the rainy season. requirements.

Description of the drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are: For some embodiments of the present application, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the liquid supply equipment for single-sided hydrophobic finishing of pure cotton home textile fabrics according to the present invention;

In the picture: 1. Finishing agent conveying roller, 2. Hydraulic roller, 3. Squeeze roller, 4. Cylinder roller A, 5. Cylinder roller B, 6. Finishing agent storage tank, 7. Conveyor belt, 8. Hot air drying device.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are some, but not all, of the embodiments of the present application. These specific features, structures or characteristics in the embodiments may be combined in one or more embodiments in any suitable manner. In the following description, specific details, such as specific configurations and components, are provided solely to assist in a comprehensive understanding of embodiments of the present application. Accordingly, it will be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. Additionally, descriptions of well-known functions and constructions are omitted from the embodiments for clarity and conciseness.

Please refer to Figure 1. In an embodiment of the present invention, a single-sided hydrophobic finishing liquid supply device for pure cotton home textile fabrics includes a finishing mechanism and a drying mechanism arranged in sequence. The finishing mechanism includes a finishing agent storage tank 6, a finishing agent Conveyor roller 1, conveyor belt 7, belt hydraulic roller 2 and squeeze roller 3. The drying mechanism includes a hot air drying device 8 arranged in sequence and a set of cylinder rollers A4 and B5 arranged oppositely.

The finishing agent conveying roller 1 is arranged in the finishing agent storage tank 6. The hydraulic pressure roller 2 and the finishing agent conveying roller 1 are connected by a conveyor belt 7. The surfaces of the hydraulic pressure roller 2 and the squeeze roller 3 are in contact with each other. , and there is a certain extrusion force between the hydraulic roller and the extrusion roller, and the fabric to be sorted passes through the contact surface between the hydraulic roller 2 and the extrusion roller 3.

The conveyor belt 7 is made of a material with certain hygroscopicity.

Behind the hydraulic roller 2 and the squeeze roller 3, a hot air drying device and cylinder rollers A4 and B5 are arranged in sequence. The finished fabric after passing through the hydraulic roller 2 and the squeeze roller is first dried by hot air. The device performs pre-drying and then further drying through cylinder roller A4 and cylinder B5. The surfaces of the cylinder roller A4 and the cylinder roller B5 are not tangent. Saturated steam is passed into the cylinder roller A4 and the cylinder roller B5, and the heat of the steam is used to dry the fabric. The cylinder roller A4 and the cylinder roller B5 rotate relatively.

The working principle of the equipment in the present invention is: first, add the prepared hydrophobic finishing agent into the finishing agent storage tank. After starting the equipment, the finishing agent conveying roller 1 rotates, thereby driving the conveyor belt 7 provided on the finishing agent conveying roller 1 movement to transport the hydrophobic finishing agent. When the fabric to be finished passes between the hydraulic roller 2 and the squeeze roller 3, the hydrophobic finishing agent transferred from the conveyor belt is squeezed together by the hydraulic roller 2 and the squeeze roller 3. Under the action of pressure, it is transferred from the conveyor belt 7 to the side where the fabric to be finished is in contact with the conveyor belt. Among them, the pressure between the hydraulic roller 2 and the extrusion roller 3 is 10-30 psi, thereby controlling the rolling reduction rate to 60-80%. Then the fabric with finishing agent on one side enters the drying mechanism, first passes through the hot air drying device 8 for pre-drying, and then passes between the cylinder roller A4 and the cylinder B5, using the saturated air in the two cylinder rollers. The temperature of the steam can be used to heat and dry both sides of the fabric at the same time, thereby completing the curing effect of the finishing agent and achieving single-sided hydrophobic finishing of the fabric. The conventional speed of the finishing equipment of the present invention is 60-70m/min.

The method of using the above-mentioned single-sided hydrophobic finishing liquid supply equipment for pure cotton home textile fabrics to perform single-sided hydrophobic finishing on cotton fabrics is implemented according to the following steps:

S1, prepare a hydrophobic finishing agent and add the finishing agent to the finishing agent storage tank. The composition of the hydrophobic finishing agent is:

Finishing agent 1-6%, cross-linking agent 0.3-1.0%, the rest is water.

The finishing agent is SENT GQ-625;

The cross-linking agent is an acrylic cross-linking agent;

S2, use the aforementioned single-sided hydrophobic finishing liquid supply equipment for pure cotton home textile fabrics to perform single-sided hydrophobic finishing on the fabric. Specifically, the control equipment transports the pretreated pure cotton fabric to the hydraulic roller 2 and the squeeze roller 3. During the process, the hydrophobic finishing agent is transferred to the belt hydraulic roller 2 by the finishing agent conveying roller 1 and the conveyor belt 7. Under the joint action of the belt hydraulic roller 2 and the squeeze roller 3, the uniform amount of liquid is controlled, thereby transferring the finishing agent. To one of the surfaces of the fabric to be finished, in this step, the pressure between the hydraulic roller 2 and the squeeze roller 3 is 10-30 psi, thereby controlling the overprint rate to 60-80%.

The conventional speed of finishing equipment is controlled at 60-70m/min.

S3, drying,

The fabric that has been finished on one side is transported to a drying mechanism for drying. The drying process includes pre-drying and baking.

The pre-baking temperature is 80-100°C, the pre-baking time is 2-5 minutes, the baking temperature is 100-140°C, and the baking time is 1-3 minutes.

The equipment used in the pre-baking is hot air drying equipment, and the equipment used in the baking is a pair of cylinder rollers A4 and cylinder rollers B5.

The single-sided hydrophobic finishing liquid supply equipment and finishing method of the present invention are used to perform single-sided hydrophobic finishing of pure cotton home textile fabrics. The resulting product can not only satisfy the comfort of pure cotton home textile fabrics, but also well prevent the fabric from being exposed to high humidity. Too much moisture in the environment can lead to mildew. The single-sided hydrophobic finishing technology of the present invention belongs to a new type of home textile fabric processing technology. By controlling the transfer amount of the hydrophobic agent during finishing, it is ensured that the hydrophobic finishing is only on one side of the fabric instead of completely infiltrating the entire fabric. Only in this way can the On the one hand, it can retain the hygroscopicity and comfort of the inner layer of home textile fabrics, and on the other hand, it can make the outer layer super hydrophobic to meet the requirement that home textile fabrics are not susceptible to moisture in humid areas during the rainy season.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed in the present invention, use the technology of the present invention. Any equivalent substitution or change of the scheme and its inventive concept shall be covered by the protection scope of the present invention.

Claims (6)

1. The utility model provides a pure cotton home textile surface fabric single face hydrophobic finish feed liquor equipment, includes finishing mechanism and the stoving mechanism that sets gradually, its characterized in that, finishing mechanism include finishing agent holding tank (6), finishing agent conveying roller (1), conveyer belt (7), take hydraulic pressure roller (2) and squeeze roll (3), stoving mechanism including hot-blast stoving device (8) and a set of relative cylinder roller A (4) and cylinder roller B (5) that set gradually, finishing agent conveying roller (1) set up in finishing agent holding tank (6), take hydraulic pressure roller (2) to locate the top of finishing agent conveying roller (1) is connected through conveyer belt (7) with finishing agent conveying roller (1), the material of conveyer belt (7) be the material that has certain hygroscopicity, take hydraulic pressure roller (2) and squeeze roll (3) surface contact each other, wait to finish the surface fabric and pass through between the contact surface of both; the rear of the hydraulic roller (2) and the squeeze roller (3) is provided with a hot air drying device, a cylinder roller A (4) and a cylinder roller B (5) in sequence, and finished fabrics passing through the hydraulic roller (2) and the squeeze roller (3) are firstly pre-dried through the hot air drying device and then further dried through the cylinder roller A (4) and the cylinder roller B (5).

2. The single-sided hydrophobic finishing liquid feeding device for pure cotton home textile fabric according to claim 1, wherein the surfaces of the cylinder roller A (4) and the cylinder roller B (5) are not tangential, and the cylinder roller A (4) and the cylinder roller B (5) rotate relatively.

3. The single-sided hydrophobic finishing liquid feeding device for pure cotton home textile fabric according to claim 1, wherein saturated steam is introduced into the cylinder roller A (4) and the cylinder roller B (5).

4. A method for performing single-sided hydrophobic finishing on a pure cotton fabric by using the single-sided hydrophobic finishing liquid feeding equipment for pure cotton home textile fabric as claimed in any one of claims 1-3, which comprises the following process flows of padding finishing liquid, surface rolling, pre-drying and baking,

the method is characterized by comprising the following steps of:

s1, preparing a hydrophobic finishing agent, and adding the finishing agent into a finishing agent storage tank, wherein the composition of the hydrophobic finishing agent is as follows:

1-6% of finishing agent, 0.3-1.0% of cross-linking agent and the balance of water;

s2, performing single-sided hydrophobic finishing on the fabric,

the control equipment conveys the fabric to be finished between a belt hydraulic roller (2) and a squeeze roller (3), the hydrophobic finishing agent is conveyed to the belt hydraulic roller (2) by a finishing agent conveying roller (1) and a conveying belt (7), under the combined action of the belt hydraulic roller (2) and the squeeze roller (3), the uniform liquid carrying amount is controlled, so that the finishing agent is transferred to one surface of the fabric to be finished, the pressure between the belt hydraulic roller (2) and the squeeze roller (3) is 10-30psi, and the rolling surplus rate is controlled to be 60-80%;

s3, drying is carried out,

and conveying the fabric subjected to single-sided finishing to a drying mechanism for drying, wherein the drying process comprises pre-drying and baking.

5. The method for performing single-sided hydrophobic finishing on the pure cotton home textile fabric by using the single-sided hydrophobic finishing liquid feeding equipment according to claim 4, wherein in the step S3, the pre-drying temperature is 80-100 ℃, the pre-drying time is 2-5 min, the drying temperature is 100-140 ℃, and the drying time is 1-3 min.

6. The method for performing single-sided hydrophobic finishing on the pure cotton fabric by using the single-sided hydrophobic finishing liquid feeding device for pure cotton home textile fabric according to claim 4, wherein in the step S3, the device for pre-drying is a hot air drying device, and the device for baking is a pair of cylinder roller A (4) and cylinder roller B (5).