CN110130024A - Liquid feeding equipment and method for one-side hydrophobic finishing of pure cotton home textile fabric - Google Patents

Abstract

The invention discloses a liquid feeding device for one-sided hydrophobic finishing of pure cotton home textile fabrics, which comprises a finishing mechanism and a drying mechanism arranged in sequence, and is characterized in that the finishing mechanism includes a finishing agent storage tank, a finishing agent conveying roller, a conveying Belt, belt hydraulic roller and squeeze roller, the drying mechanism includes a hot air drying device arranged in sequence and a set of opposite cylinder rollers A and cylinder rollers B, the finishing agent conveying roller is set in the finishing agent storage In the groove, the hydraulic roller and the finishing agent delivery roller are connected by 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. The invention also discloses a method for using the liquid feeding equipment for one-side hydrophobic finishing of pure cotton home textile fabrics to carry out one-side hydrophobic finishing of fabrics. The invention solves the problem in the prior art that the hydrophobic finishing of the pure cotton home textile fabric will affect its moisture absorption comfort when it contacts the human body.

Description

Liquid feeding equipment and method for one-side hydrophobic finishing of pure cotton home textile fabric

technical field

The invention relates to liquid feeding equipment for one-side hydrophobic finishing of pure cotton home textile fabrics, and also relates to a single-side hydrophobic finishing method for pure cotton home textile fabrics by using the equipment.

Background technique

Cotton fiber has good hygroscopicity, and pure cotton fiber textiles have good thermal insulation without any stimulation and no side effects when in contact with the human body. In humid areas with high ambient humidity, pure cotton home textile products tend to absorb moisture in a humid environment, making people feel damp.

Chinese patent application (CN201610363717.1) discloses a durable hydrophobic finishing method for cotton fabrics, including: pretreating cotton fabrics, then padding and finishing in an acetoacetate-modified natural polymer aqueous solution, and then pre-baking Treatment: padding the cotton fabric obtained by the pre-drying treatment in a dispersion liquid containing low surface energy compounds, crosslinking agents and micro-nano particles, and then drying to obtain a durable and hydrophobic cotton fabric. The method of the present invention adopts the traditional padding process, which is simple in operation, short in time consumption, and does not need high-temperature baking, and has good product uniformity and reproducibility, which is beneficial to popularization; after the obtained cotton fabric is soaped many times, the fabric still has Excellent hydrophobic properties.

Although the hydrophobic finishing of this padding process can improve the problem that pure cotton home textiles are easy to absorb moisture in a humid environment, it will also affect the hygroscopicity of parts that touch the human body during use and affect the comfort of the human body.

Chinese patent application (CN201510322840.4) discloses a method for finishing single-sided superhydrophobic cotton fabrics, using foam finishing technology to prepare a silica sol foam finishing agent and a water-based fluorine-containing polyacrylic acid water-repellent foam finishing agent, and scrape them evenly in sequence Apply on the surface of cotton fabric, keep the liquid carrying 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 is on one side of the cotton fabric Surface roughening, greatly reducing the surface free energy of cotton fabrics, and endowing cotton fabrics with superhydrophobicity on one side.

Although this finishing method achieves the effect of single-sided finishing, because it uses the method of scraping foam finishing agent, on the one hand, the preparation of foam hydrophobic agent is relatively complicated, and the state of foamy finishing agent is not stable. When coating, the amount is not easy to control, and it is not suitable for mass and rapid production.

Contents of the invention

The object of the present invention is to provide a liquid-feeding device and method for one-side hydrophobic finishing of pure cotton home textile fabrics, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A 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 delivery roller, a conveyor belt, a hydraulic roller with a squeeze Roller, the drying mechanism includes a hot air drying device arranged in sequence and a set of opposite cylinder rollers A and cylinder rollers B, the finishing agent conveying roller is set in the finishing agent storage tank, the belt hydraulic roller It is connected with the finishing agent conveying roller through a conveyor belt, and 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: a hot air drying device, a cylinder roller A and a cylinder roller B are sequentially arranged behind the hydraulic roller and the squeeze roller, and the finished fabric after the hydraulic roller and the squeeze roller is passed through First pre-dry by hot air drying device, and then further dry by cylinder roll A and cylinder roll B.

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

As a further solution of the present invention: the cylinder roll A and the cylinder roll B are fed with saturated steam.

The present invention also provides another technical solution:

Using the liquid supply equipment for one-sided hydrophobic finishing of pure cotton home textile fabrics in the aforementioned technical solution to carry out the method for one-sided hydrophobic finishing of pure cotton fabrics, the process flow is: padding and finishing liquid → surface rolling → pre-baking → baking, specifically as follows Steps to proceed:

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

S2, performing one-sided hydrophobic finishing on the fabric,

That is, the control equipment conveys the fabric to be finished through the gap between the belt hydraulic roller and the squeeze roller, and the hydrophobic finishing agent is sent to the belt hydraulic roller by the finishing agent delivery roller and the conveyor belt. Under the joint action of the belt hydraulic roller and the squeeze roller, Controlled uniform pick-up, thereby transferring the finish to one of the surfaces of the fabric to be finished,

S3, drying,

The fabric after finishing on one side is transported to a drying mechanism for drying, and the drying process includes pre-drying and baking.

As a further solution of the present invention:

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

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

Wherein the finishing agent is Sent GQ-625, and the cross-linking agent is an acrylic acid cross-linking agent.

As a further solution of the present invention: in the above S2, the pressure between the belt hydraulic roll and the squeeze roll is 10-30 psi, so that the pass ratio is controlled at 60-80%.

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

As a further solution of the present invention: in the above 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 rolls A and B.

Compared with the prior art, the beneficial effect of the present invention is that: the single-sided hydrophobic finishing equipment for pure cotton home textile fabrics, by improving the structure of the post-finishing equipment, performs single-sided hydrophobic finishing on pure cotton home textile fabrics, so that it can achieve a single-sided hydrophobic effect . This single-sided hydrophobic finishing technology is a new type of home textile fabric processing technology, which can not only retain the hygroscopic comfort of the inner layer of the home textile fabric, but also make the outer layer super-hydrophobic, so that the home textile fabric is not easy to be affected by moisture in the wet area during the rainy season. requirements.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying 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 creative effort.

Fig. 1 is the structural representation of the single-sided hydrophobic finishing liquid feeding equipment of pure cotton home textile fabric of the present invention;

In the figure: 1. Finishing agent delivery 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 purposes, 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 It is a part of the embodiments of the present application, but not all of the embodiments, and these specific features, structures or characteristics in the embodiments can be combined in any suitable manner in one or more embodiments. In the following description, specific details, such as specific configurations and components, are provided only to help a comprehensive understanding of the embodiments of the present application. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

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

The finishing agent delivery roller 1 is arranged in the finishing agent storage tank 6, the hydraulic belt roller 2 and the finishing agent delivery roller 1 are connected by a conveyor belt 7, and the surface of the hydraulic belt 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 squeeze roller, and the fabric to be sorted passes through the contact surface between the hydraulic roller 2 and the squeeze roller 3.

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

A hot air drying device, a cylinder roll A4 and a cylinder roll B5 are sequentially arranged behind the hydraulic roller 2 and the squeeze roller 3, and the finished fabric after the hydraulic roller 2 and the squeeze roller is first dried by hot air. The device is prebaked, and then further dried by cylinder roller A4 and cylinder roller B5. The surfaces of the cylinder roll A4 and the cylinder roll B5 are not tangent, and the saturated steam is fed into the cylinder roll A4 and the cylinder roll B5, and the fabric is dried by the heat of the steam. The cylinder roll A4 and the cylinder roll 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 arranged on the finishing agent conveying roller 1 When the fabric to be finished passes between the hydraulic roller 2 and the squeeze roller 3, the hydrophobic finishing agent delivered by 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. Wherein, the pressure between the belt hydraulic roll 2 and the extrusion roll 3 is 10-30 psi, so that the excess reduction rate is controlled at 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 roller B5, using the saturation in the two cylinder rollers The temperature of the steam realizes simultaneous heating and drying of both sides of the fabric, thereby completing the curing of the finishing agent, and then realizing the hydrophobic finishing of one side of the fabric. The conventional speed of the finishing equipment of the present invention is 60-70 m/min.

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

S1, preparing a hydrophobic finishing agent, and adding the finishing agent into the finishing agent storage tank, the composition of the hydrophobic finishing agent is:

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

The finishing agent is Sent GQ-625;

Described cross-linking agent is acrylic acid series cross-linking agent;

S2, using the aforementioned pure cotton home textile fabric single-side hydrophobic finishing liquid supply equipment to carry out single-side hydrophobic finishing on the fabric, specifically, the control equipment transports the pretreated pure cotton fabric to the hydraulic roller 2 and squeeze roller 3 In between, the hydrophobic finishing agent is conveyed 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 belt hydraulic roller 2 and the squeeze roller 3 is 10-30psi, thereby controlling the scrap rate at 60-80%,

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

S3, drying,

The fabric after one-sided finishing is transported to the drying mechanism for drying, and the drying process includes pre-drying and baking,

The pre-baking temperature is 80-100°C, and 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 rolls A4 and B5.

The one-sided hydrophobic finishing liquid feeding equipment and finishing method of the present invention are used to carry out one-sided hydrophobic finishing of pure cotton home textile fabrics, and the obtained products can not only satisfy the comfort of pure cotton home textile fabrics, but also can well prevent the fabric from being exposed to high humidity. Too much humidity can lead to mildew. The single-side hydrophobic finishing technology of the present invention belongs to a new type of home textile fabric processing technology. By controlling the amount of hydrophobic agent transferred during finishing, it is ensured that the hydrophobic finishing is only on one side of the fabric instead of completely soaking the entire fabric. Only in this way can it be On the one hand, the hygroscopicity and comfort of the inner layer of the home textile fabric can be retained, and the outer layer can be super-hydrophobic, so as to meet the requirement that the home textile fabric is not easily affected by moisture in the wet area during the rainy season.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technology of the present invention Any equivalent replacement or change of the scheme and its inventive concepts shall fall within the protection scope of the present invention.

Claims (10)

1. a kind of pure cotton man textile fabric single side hydrophobic finishing gives liquid equipment, including the dressing mechanism and drying mechanism set gradually, It is characterized in that, the dressing mechanism include finishing agent holding tank (6), finishing agent conveying roller (1), conveyer belt (7), with hydraulic Roller (2) and compression roller (3), the drying mechanism include the hot wind baking apparatus (8) and one group of opposite cylinder set gradually Roller A (4) and cylinder roller B (5), the finishing agent conveying roller (1) are arranged in finishing agent holding tank (6), the hydraulic roller of band (2) It is connect with finishing agent conveying roller (1) by conveyer belt (7), the surface phase mutual connection with hydraulic roller (2) with compression roller (3) Touching, fabric to be arranged pass through between the contact surface of the two.

2. a kind of pure cotton man textile fabric single side hydrophobic finishing according to claim 1 gives liquid equipment, which is characterized in that described The material of conveyer belt (7) be with certain hygroscopic material.

3. a kind of pure cotton man textile fabric single side hydrophobic finishing according to claim 1 gives liquid equipment, which is characterized in that described The rear with hydraulic roller (2) and compression roller (3) be disposed with hot wind baking apparatus and cylinder roller A (4) and cylinder roller B (5), Preliminary drying is carried out by passing through hot wind baking apparatus first with the finish fabric after hydraulic roller (2) and compression roller, then passes through tin again Woods roller A (4) and cylinder roller B (5) is further dried.

4. a kind of pure cotton man textile fabric single side hydrophobic finishing according to claim 1 gives liquid equipment, which is characterized in that described Cylinder roller A (4) and cylinder roller B (5) surface it is nontangential, the cylinder roller A (4) and cylinder roller B (5) are relatively rotated.

5. a kind of pure cotton man textile fabric single side hydrophobic finishing according to claim 1 gives liquid equipment, which is characterized in that described Cylinder roller A (4) and cylinder roller B (5) in be passed through saturated vapor.

6. pure to the progress of liquid equipment using pure cotton man textile fabric single side hydrophobic finishing described in any one of Claims 1 to 55 The method of cotton fabric single side hydrophobic finishing, process flow are that padding finishing liquid → face is rolled, and → preliminary drying → bakes,

It is characterized in that, specifically following the steps below:

S1 prepares hydrophobic finishing agent, and finishing agent is added in finishing agent storage tank

S2 carries out single side hydrophobic finishing to fabric,

I.e. control equipment conveys fabric to be arranged by the way that between hydraulic roller (2) and compression roller (3), hydrophobic finishing agent is by whole Reason agent conveying roller (1) and conveyer belt (7) are sent to hydraulic roller (2), in the collective effect with hydraulic roller (2) and compression roller (3) Under, uniformly band liquid measure is controlled, so that finishing agent is transferred to one of surface to finish fabric,

S3 is dried,

Fabric after progress single-face finishing is delivered to drying mechanism to dry, the drying course includes preliminary drying and bakes.

7. pure cotton man textile fabric single side hydrophobic finishing according to claim 6 is hydrophobic to liquid equipment progress pure cotton fabric single side The method of arrangement, which is characterized in that in the S1, the composition of hydrophobic finishing agent are as follows:

Finish content 1-6%, content of crosslinking agent 0.3-1.0%, remaining is water；

Wherein finishing agent is Si Ente GQ-625, and the crosslinking agent is acrylic crosslinking agent.

8. pure cotton man textile fabric single side hydrophobic finishing according to claim 6 is hydrophobic to liquid equipment progress pure cotton fabric single side The method of arrangement, which is characterized in that it is 10-30psi with the pressure between hydraulic roller (2) and compression roller (3) in the S2, To control pick-up in 60-80%.

9. pure cotton man textile fabric single side hydrophobic finishing according to claim 6 is hydrophobic to liquid equipment progress pure cotton fabric single side The method of arrangement, which is characterized in that in the S3, preliminary drying temperature is 80-100 DEG C, and preliminary drying time is 2~5min, described Baking temperature is 100-140 DEG C, and baking time is 1~3min.

It is dredged 10. pure cotton man textile fabric single side hydrophobic finishing according to claim 6 carries out pure cotton fabric single side to liquid equipment The method that water arranges, which is characterized in that in the S3, the equipment that the preliminary drying uses is described for hot wind drying plant Baking the equipment used is a pair of of cylinder roller A (4) and cylinder roller B (5).