Production process of non-woven fabric for building template lining

Abstract

The invention relates to the field of non-woven fabric production, in particular to a production process of a non-woven fabric for a building template lining, which comprises the following steps: step 1, preparing raw materials including petrochemical products such as polypropylene, polyester and the like; 2, the raw materials are pretreated, wherein the steps of melting, extruding, cooling and the like are included; 3, spinning the raw materials subjected to melting treatment; 4, the spun fiber yarn is made into a non-woven fabric; step 5, perforating operation; and step 6, shaping the non-woven fabric. Raw materials are pretreated, the filamentous raw materials are cooled into sheets through a cooling device, preparation is made for the subsequent spinning process, after melting treatment, the raw materials are sprayed into a rotary polishing barrel below the device through a special spinning device, meanwhile, sprayed liquid fibers can be pulled into long and thin fiber filaments through the barrel wall rotating at a high speed, and the long and thin fiber filaments are formed. The spun fibers are made into the non-woven fabric, and finally the non-woven fabric is shaped, so that the working efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the field of non-woven fabric production, in particular to a production process of non-woven fabric for building formwork lining. Background Art

[0002] Non-woven fabrics, also known as nonwovens, are made of oriented or random fibers. They are called cloth because they have the appearance and certain properties of cloth. They are moisture-proof, breathable, flexible, lightweight, non-combustible, easily decomposable, non-toxic and non-irritating, available in a variety of colors, inexpensive, and recyclable.

[0003] The current production process of non-woven fabrics for building formwork linings is relatively complicated, affecting efficiency. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a production process for non-woven fabrics for building formwork linings, which has the advantages of simple production process and solves the above-mentioned problems.

[0006] (2) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A production process for non-woven fabrics for building formwork linings comprises the following steps:

[0009] Step 1: Raw material preparation, including petrochemical products such as polypropylene (PP) and polyester (PET);

[0010] Step 2: Pre-process the raw materials, including melting, extrusion, cooling, etc.

[0011] Step 3: Spinning the melted raw materials;

[0012] Step 4: making the spun fiber into non-woven fabric;

[0013] Step 5: Punching operation;

[0014] Step 6: Shape the non-woven fabric.

[0015] Preferably, the step 1 further requires preliminary cleaning and melting of the raw materials for subsequent spinning process.

[0016] Preferably, in the step 2, during the melting process, the raw material is heated to a certain temperature to make it molten, and then the molten raw material is extruded into filaments through an extruder, and then the filamentary raw material is cooled into sheets through a cooling device to prepare for the subsequent spinning process.

[0017] Preferably, in step three, after the melting treatment, the liquid is sprayed into a rotating polishing cylinder below the device through a special spinning device. At the same time, the high-speed rotating cylinder wall will pull the sprayed liquid fiber into slender fiber filaments.

[0018] Preferably, the perforation operation in step five is to make the non-woven fabric have better air permeability and water permeability, and is usually performed during the production process of the non-woven fabric.

[0019] Preferably, the step six of shaping is to allow the non-woven fabric to have a stable size and shape, and is usually performed during the production process of the non-woven fabric.

[0020] (3) Beneficial effects

[0021] Compared with the prior art, the present invention provides a production process for non-woven fabrics for building formwork linings, which has the following beneficial effects:

[0022] The present invention pre-treats the raw materials, heats the raw materials to a certain temperature to make them into a molten state, and then extrude the molten raw materials into filaments through an extruder. Subsequently, the filamentary raw materials are cooled into sheets through a cooling device to prepare for the subsequent spinning process. After the melting treatment, the raw materials are sprayed into a rotating polishing cylinder below the device through a special spinning device. At the same time, the high-speed rotating cylinder wall will pull the sprayed liquid fibers into slender fiber filaments, and the spun fiber filaments are made into non-woven fabrics. Finally, the non-woven fabrics are shaped. The process is simple and efficient, and effectively improves work efficiency. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The present invention relates to a production process of non-woven fabric for building formwork lining, comprising the following steps:

[0025] Step 1: Raw material preparation, including petrochemical products such as polypropylene (PP) and polyester (PET);

[0026] Step 1 also requires preliminary cleaning and melting of the raw materials for the subsequent spinning process;

[0027] Step 2: The raw materials are pre-treated, including melting, extrusion, cooling and other steps. During the melting process, the raw materials are heated to a certain temperature to make them molten, and then the molten raw materials are extruded into filaments through an extruder. Then, the filaments are cooled into sheets through a cooling device to prepare for the subsequent spinning process.

[0028] Step 3: The melted raw material is spun. After melting, it is sprayed into the rotating polishing cylinder below the device through a special spinning device. At the same time, the high-speed rotating cylinder wall will pull the sprayed liquid fiber into slender fiber filaments;

[0029] Step 4: making the spun fiber into non-woven fabric;

[0030] Step 5: Perforation operation is usually carried out during the production process of non-woven fabrics to make them more breathable and water permeable.

[0031] Step 6: Shape the non-woven fabric. The purpose of shaping is to give the non-woven fabric a stable size and shape, which is usually carried out during the production process of the non-woven fabric.

[0032] The beneficial effects of the present invention are as follows: the present invention performs preliminary cleaning and melting treatment on the raw materials, heats the raw materials to a certain temperature to make them into a molten state, and then extrude the molten raw materials into filaments through an extruder. Subsequently, the filamentary raw materials are cooled into sheets through a cooling device to prepare for the subsequent spinning process. After melting treatment, they are sprayed into a rotating polishing cylinder below the device through a special spinning device. At the same time, the high-speed rotating cylinder wall will pull the sprayed liquid fibers into slender fiber filaments, and the spun fiber filaments are made into non-woven fabrics, and finally the non-woven fabrics are shaped. The process is simple and efficient, and effectively improves work efficiency.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A production process for non-woven fabrics for building formwork lining, characterized in that: The following steps are involved: Step 1: Raw material preparation, including petrochemical products such as polypropylene (PP) and polyester (PET); Step 2: Pre-process the raw materials, including melting, extrusion, cooling, etc. Step 3: Spinning the melted raw materials; Step 4: making the spun fiber into non-woven fabric; Step 5: Punching operation; Step 6: Shape the non-woven fabric.

2. The process for producing a non-woven fabric for building formwork lining according to claim 1, characterized in that: The step 1 also requires preliminary cleaning and melting of the raw materials for the subsequent spinning process.

3. The process for producing a non-woven fabric for building formwork lining according to claim 1, characterized in that: In the second step, during the melting process, the raw materials are heated to a certain temperature to be molten, and then the molten raw materials are extruded into filaments through an extruder.

4. The process for producing a non-woven fabric for building formwork lining according to claim 1, characterized in that: After the melting treatment in step three, the liquid is sprayed into the rotating polishing cylinder below the device through a special spinning device. At the same time, the high-speed rotating cylinder wall will pull the sprayed liquid fiber into slender fiber filaments.

5. The process for producing a non-woven fabric for building formwork lining according to claim 1, characterized in that: The purpose of the perforation operation in step five is to make the non-woven fabric more breathable and water permeable.

6. The process for producing a non-woven fabric for building formwork lining according to claim 1, characterized in that: The sixth step of shaping is to give the nonwoven fabric a stable size and shape, and is usually performed during the production process of the nonwoven fabric.