阅读说明：本技术 一种产业用面状织物涂覆工艺 (Industrial planar fabric coating process ) 是由 刘艳秀 唐斌 陈晓伟 安康 李兰亭 王丽娜 沈宇 于 2020-12-25 设计创作，主要内容包括：一种产业用面状织物涂覆工艺,包括以下步骤：1、对所述面状织物基布干燥预热；2、对所述面状织物基布进行平整；3、通过经涂料挤出机注入涂料的涂覆模具对所述面状织物基布的两面进行涂覆；所述涂覆模具有2～20无痕流道并配有专用模唇,所述涂料挤出机通过所述无痕流道将熔融状态的涂料均匀分布在所述面状织物基布的两面至所述涂覆模具的出口处,通过所述专用模唇压涂抹覆后形成所述面状涂覆织物。4、对涂覆后的面状涂覆织物进行定形；5、对定形后的面状涂覆织物进行整理后形成所述面状涂覆织物成品。本发明解决了现有技术存在的产业用涂覆织物功能单一,织物面性能单一,当要求涂覆织物两面功能不同时,无法做到按要求的差异性等问题。(An industrial face fabric coating process, comprising the following steps: 1. drying and preheating the planar fabric base cloth; 2. flattening the planar fabric base cloth; 3. coating the two sides of the face-shaped fabric base cloth through a coating die which injects coating through a coating extruder; the coating die is provided with 2-20 traceless runners and is provided with a special die lip, the coating extruder uniformly distributes the coating in a molten state to the outlet of the coating die from two sides of the planar fabric base fabric through the traceless runners, and the planar coated fabric is formed after the coating die is pressed, coated and coated through the special die lip. 4. Shaping the coated planar coated fabric; 5. and finishing the shaped planar coated fabric to form the finished planar coated fabric. The invention solves the problems that the industrial coated fabric has single function and single fabric surface performance, and cannot realize difference according to requirements when the functions of two surfaces of the coated fabric are different in the prior art.)

1. An industrial face fabric coating process is characterized in that: the industrial face fabric coating process comprises the following steps:

step 1: drying and preheating the planar fabric base cloth;

step 2: flattening the dried and preheated planar fabric base cloth;

and step 3: coating the flattened surface fabric base cloth, wherein the coating is to convey a coating to a coating die through a coating extruder, and the surface fabric base cloth finishes coating two surfaces of the surface fabric base cloth through the coating die; the coating extruder comprises a plurality of coating extruders for respectively conveying coatings to two sides of the planar fabric base cloth, and the coating dies comprise a plurality of coating dies for respectively coating two sides of the planar fabric base cloth;

and 4, step 4: shaping the coated planar coated fabric;

and 5: and finishing the shaped planar coated fabric to form the finished planar coated fabric.

2. A process for coating a flat textile according to claim 1, wherein: the drying and preheating is drying room or oven drying and preheating, the temperature of the drying and preheating is 70-120 ℃, and the time of the drying and preheating is 1-40 minutes.

3. A process for coating a flat textile according to claim 1, wherein: the flattening is that the planar fabric base cloth is finished by the rotation of the support prick shafts of the support prick shaft groups with symmetrical two sides, the support prick shaft groups are 2 groups or 4 groups or 6 groups, and 2 or 4 prick shafts of each group are symmetrically arranged on two sides of the planar coated fabric base cloth.

4. A process for coating a flat textile according to claim 1, wherein: the coating used by the coating extruders is the same coating or different coatings, and the coating dies are the same coating die or different coating dies; the same coating die is a coating die with the same size and structure, the different coating dies are coating dies with different sizes or/and structures, and the coating dies are coating dies with 2-20 traceless runners and special die lips; the plurality of coating extruders are 2-10 coating extruders, and the plurality of coating dies are 2-10 coating dies.

5. A process for coating a flat textile according to claim 1, wherein: the shaping is to cool and shape the planar coated fabric through 2-5 cooling rollers arranged at intervals, the cooling is cooling water circulation cooling or non-circulation cooling, and the inlet temperature of the cooling water is 5-25 ℃.

6. A process for coating a flat textile according to claim 1, wherein: and in the finishing step, conveying deviation of the planar coated fabric is finely adjusted through 2-4 rubber rollers arranged on two sides of the planar coated fabric, then the planar coated fabric is subjected to edge cutting, and finally the coated fabric finished product is subjected to traction and rolling through a traction machine.

7. A process for coating a flat textile as claimed in claim 2, wherein: the temperature of the drying preheating is 80-110 ℃, and the time of the drying preheating is 2-30 minutes.

8. A process for coating a flat textile according to claim 4, wherein: the traceless runners are distributed in pairs between the inlet of the coating die and the outlet of the coating die, and the special die lips are arranged in pairs at the outlet of the coating die.

9. A process for coating a flat textile as claimed in claim 4 or 8, wherein: the coating extruder uniformly distributes the coating in a molten state to the outlets of the coating dies from two sides of the planar fabric base cloth through the paired traceless runners, and the coated planar fabric is pressed and coated by the paired special die lips to form the planar coated fabric.

10. A process for coating a flat textile as claimed in claim 9, wherein: the planar coated fabric is formed by coating all the surfaces of the planar fabric uniformly, coating the surfaces of the planar fabric uniformly, and having good durability and air tightness.

Technical Field

The invention relates to the technical field of industrial textile production, in particular to a coating process of an industrial planar fabric.

Background

The existing industrial coated fabric has the problems of single function, single surface performance and the like, and when the functions of two sides of the coated fabric are different, the difference according to the requirement cannot be achieved, or the manufacturing process is complicated. At present, the fabric with two surfaces coated with different materials is manufactured by coating one surface, then overturning and coating the other surface, and only coating a film on the coated surface if other functions are needed, so that the manufacturing process is complex, the yield is not high, and the adhesive strength cannot be ensured by multiple layers of coating films.

Disclosure of Invention

The invention provides a coating process for industrial planar fabrics, aiming at solving the problems that the industrial planar coated fabrics have single function, single fabric surface performance, and the difference between two surfaces can not be realized according to different requirements in the prior art.

In order to solve the problems in the prior art, the invention adopts the technical scheme that:

an industrial face fabric coating process, comprising the following steps:

step 1: drying and preheating the planar fabric base cloth;

step 2: flattening the dried and preheated planar fabric base cloth;

and step 3: coating the flattened surface fabric base cloth, wherein the coating is to convey a coating to a coating die through a coating extruder, and the surface fabric base cloth finishes coating two surfaces of the surface fabric base cloth through the coating die; the coating extruder comprises a plurality of coating extruders for respectively conveying coatings to two sides of the planar fabric base cloth, and the coating dies comprise a plurality of coating dies for respectively coating two sides of the planar fabric base cloth;

and 4, step 4: shaping the coated planar coated fabric;

and 5: and finishing the shaped planar coated fabric to form the finished planar coated fabric.

In the process, the drying and preheating is drying room or oven drying and preheating, the temperature of the drying and preheating is 70-120 ℃, and the time of the drying and preheating is 1-40 minutes.

In the process, the flattening is finished by the rotation of the support barbed shaft groups with two symmetrical sides, the support barbed shaft groups are 2 groups, 4 groups or 6 groups, and 2 or 4 barbed shafts in each group are symmetrically arranged on two sides of the planar coated fabric base fabric.

In the process, the coatings used by the plurality of coating extruders are the same coatings or different coatings, and the plurality of coating dies are the same coating dies or different coating dies; the same coating die is a coating die with the same size and structure, the different coating dies are coating dies with different sizes or/and structures, and the coating dies are coating dies with 2-20 traceless runners and special die lips; the plurality of coating extruders are 2-10 coating extruders, and the plurality of coating dies are 2-10 coating dies.

In the process, the shaping is to cool and shape the planar coated fabric through 2-5 cooling rollers arranged at intervals, the cooling is cooling water circulation cooling or non-circulation cooling, and the inlet temperature of the cooling water is 5-25 ℃.

In the process, the finishing is to finely adjust the conveying deviation of the planar coated fabric through 2-4 rubber rollers arranged on two sides of the planar coated fabric, then carry out edge cutting treatment on the planar coated fabric, and finally carry out traction and winding on the coated fabric finished product through a traction machine.

In the process, the drying preheating temperature is 80-110 ℃, and the drying preheating time is 2-30 minutes.

In the process, the traceless runners are distributed in pairs between the inlet of the coating die and the outlet of the coating die, and the special die lips are arranged in pairs at the outlet of the coating die.

In the process, the coating extruder uniformly distributes the coating in a molten state to the outlets of the coating dies from the two sides of the planar fabric base cloth through the paired traceless runners, and the coated planar fabric is pressed and coated by the paired special die lips to form the planar coated fabric.

In the above process, the forming of the plane-shaped coated fabric is to form the plane-shaped coated fabric with uniform coating and uniform coating thickness of each surface coating of the plane-shaped fabric.

Compared with the prior art, the technical scheme adopted by the invention has the following beneficial effects:

1. because the invention adopts a plurality of same or different coating and coating die process technologies with high technical content, the two surfaces of the coated fabric have the same or different performances and functions;

2. because of adopting a traceless runner process technology, the coating is injected and uniformly distributed without detention;

3. the multi-layer co-extrusion process technology is adopted, so that the coated fabric products are multifunctional and overlapped;

4. the special die lip pressing and coating process ensures that the thickness of the coated fabric is consistent and the coating is uniform and flat.

Drawings

Fig. 1 is a schematic view of a process flow of the industrial coating process of the planar fabric.

Reference numerals

1-planar fabric base cloth, 2-drying room or oven, 3-barbed shaft, 4-coating extruder, 5-coating die, 501-traceless runner, 502-special die lip, 6-planar coated fabric, 7-cooling roller, 8-rubber roller, 9-tubular coated fabric finished product and 10-tractor.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, an industrial coating process for a flat fabric includes the following steps:

step 1: drying and preheating the planar fabric base cloth 1 through a drying room 2, wherein the drying and preheating temperature is 70-120 ℃, and the drying and preheating time is 1-30 minutes;

step 2: the method comprises the steps of leveling the dried and preheated face-shaped fabric base cloth 1 through rotation of a plurality of support shafts 3 of two symmetrical support shaft groups, wherein the support shaft groups are 2 groups or 4 groups or 6 groups, and each group of 2 or 4 support shafts 3 are symmetrically arranged on two sides of the face-shaped coated fabric base cloth 1.

And step 3: and coating the flat fabric base cloth 1, wherein the coating is carried out by conveying a coating to a coating die 5 through a coating extruder 4, and the coating of the two sides of the fabric base cloth 1 is finished by the coating die 5 through the fabric base cloth 1. The coating extruder 4 comprises a plurality of coating extruders for respectively conveying coatings to two sides of the planar fabric base cloth 1, and the coating die 5 comprises a plurality of coating dies for respectively coating two sides of the planar fabric base cloth 1; the coating materials used by the plurality of coating material extruders 4 are the same coating material or different coating materials, and the plurality of coating dies 5 are the same coating die or different coating dies; the same coating die is a coating die with the same size and structure, and the different coating dies are coating dies with different sizes or/and structures; the coating die 5 is a coating die provided with 2-20 traceless runners 501 and a special die lip 502; the plurality of coating extruders 4 are 2-10 coating extruders, and the plurality of coating dies 5 are 2-10 coating dies. The traceless runners 501 are distributed in pairs in the coating die 5, and the special lips 502 are arranged in pairs at the outlet of the coating die 5. The coating extruder 4 uniformly distributes the coating in a molten state on both sides of the planar fabric base cloth 1 to the outlet of the coating die 5 through the paired traceless runners 501, and the coated planar fabric is coated by pressing and coating through the paired special die lips 502 to form the planar coated fabric 6.

And 4, step 4: the planar coated fabric 6 is cooled and shaped through 2-5 cooling rollers 7 which are arranged at intervals, wherein the cooling is cooling water circulation cooling or cooling water non-circulation cooling, and the inlet temperature of the cooling water is 5-25 ℃.

And 5: and finishing the shaped planar coated fabric to form a finished planar coated fabric product 9. The finishing is to finely adjust the conveying deviation of the planar coated fabric through 2-4 rubber rollers 8 arranged on two sides of the planar coated fabric, then carry out edge cutting treatment on the planar coated fabric, and finally carry out traction and winding on a coated fabric finished product 9 through a traction machine 10.

In the process, the common drying preheating temperature is 80-110 ℃, the drying preheating temperature is preferably 95-100 ℃ for the planar coated fabric with the common specification, and the drying preheating time is preferably 5-20 minutes.

In the process, the temple needling axis groups are 2 or 4 groups, and 2 or 4 needling axes 3 in each group are symmetrically arranged on two sides of the planar coated fabric base cloth 1.

In the process, the plurality of coating extruders 4 are 2-6 coating extruders in common use, and the plurality of coating dies 5 are 2-6 coating dies.

In the above process, the cooling water inlet temperature is preferably 10 to 15 ℃.

After the treatment of the coating process of the planar fabric, the finished product 9 of the planar coated fabric with uniform coating and uniform coating thickness of each surface coating of the planar coated fabric is obtained.

The specific embodiment is as follows:

as shown in fig. 1, an industrial coating process for a flat fabric includes the following steps:

step 1: drying and preheating the planar fabric base cloth 1 through a drying room 2 at the drying and preheating temperature of 100 ℃ for 15 minutes;

step 2: the method comprises the following steps of leveling the dried and preheated planar fabric base cloth 1 through rotation of a plurality of support shafts 3 of two symmetrical support shaft groups, wherein the support shaft groups are 4 groups, and the two sides of the planar coated fabric base cloth 1 are symmetrically arranged through 2 support shafts 3 of each group.

And step 3: and coating the flat fabric base cloth 1, wherein the coating is carried out by conveying a coating to a coating die 5 through a coating extruder 4, and the coating of the two sides of the fabric base cloth 1 is finished by the coating die 5 through the fabric base cloth 1. The coating extruder 4 comprises 4 coating extruders for respectively conveying coatings to two sides of the face-shaped fabric base cloth 1, and the coating die 5 comprises 4 coating dies for respectively coating two sides of the face-shaped fabric base cloth 1; the 4 coating extruders 4 use 2 kinds of coatings, namely every two coatings are the same, and the 4 coating dies 5 are the same coating dies; the coating die 5 is a coating die provided with 10 traceless runners 501 and a special die lip 502; the traceless runners 501 are distributed in pairs in the coating die 5, and the special lips 502 are arranged in pairs at the outlet of the coating die 5. The coating extruder 4 uniformly distributes the coating in a molten state on both sides of the planar fabric base cloth 1 to the outlet of the coating die 5 through the paired traceless runners 501, and the coated planar fabric is coated by pressing and coating through the paired special die lips 502 to form the planar coated fabric 6.

And 4, step 4: the planar coated fabric 6 is cooled and shaped through 3 cooling rollers 7 which are arranged at intervals, wherein cooling is cooling water circulation cooling, and the inlet temperature of the cooling water is 10-15 ℃.

And 5: and finishing the shaped planar coated fabric to form a finished planar coated fabric product 9. The finishing is to finely adjust the conveying deviation of the planar coated fabric through 3 rubber rollers 8 arranged on two sides of the planar coated fabric, then carry out edge cutting treatment on the planar coated fabric, and finally carry out traction and winding on the coated fabric finished product 9 through a traction machine 10.

The above embodiments can meet the requirements of the surface coating fabric products which are commonly used conventionally.

After the treatment of the coating process of the planar fabric, the finished product 9 of the planar coated fabric with uniform coating and uniform coating thickness of each surface coating of the planar coated fabric is obtained.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.