CN115583083A - A glass fiber grid spun-bonded needle-punched tire base fabric and its production process - Google Patents

Abstract

The invention aims to provide a glass fiber grid spun-bonded needled base fabric which is material-saving and has a stable fabric structure and a production process thereof. In order to solve the technical problem, the invention provides glass fiber grid spunbonded needle-punched tire base cloth which comprises a coating layer formed by laying and interweaving an upper layer and a lower layer of polyester fiber yarns, wherein the coating layer consists of an upper coating layer and a lower coating layer, the upper coating layer and the lower coating layer are both made of the polyester fiber yarns, tensile-resistant glass fiber grid cloth is arranged between the upper coating layer and the lower coating layer, the tensile-resistant glass fiber grid cloth is laid on the lower coating layer while the lower coating layer swings and lays the yarns, and the tensile-resistant glass fiber grid cloth continues to swing and lay the yarns on the tensile-resistant glass fiber grid cloth after being laid and is the upper coating layer; the upper coating layer and the lower coating layer are formed by opposite needling spinning of an upper row of felting needles and a lower row of felting needles.

Description

A glass fiber grid spun-bonded needle-punched tire base fabric and its production process

technical field

The invention relates to a nonwoven fabric and a production process thereof, in particular to a glass fiber grid spun-bonded needle-punched tire base cloth and a production process thereof.

Background technique

In the field of waterproof membrane base fabric, the tensile force and tearing force of the base fabric are proportional to the weight of the base fabric, but when the tensile force in one of the vertical and horizontal directions is very large, while the tensile force in the other direction is not required or When the requirement is very small, the existing material manufacturers on the market often use the method of increasing the raw material of the base fabric in order to achieve the purpose, which not only increases the weight of the base fabric, but also causes a waste of resources.

In addition, the existing tire base fabric has defects, one of which is easily shrunk in the other direction when subjected to tensile force, and in serious cases, the fabric is torn, causing adverse consequences. Therefore, there is an urgent need for a tire base fabric that is not easy to shrink.

Contents of the invention

The technical problem to be solved by the present invention is to provide a glass fiber grid spun-bonded needle-punched base fabric with a stable fabric structure and a production process thereof, which saves materials.

In order to solve the above technical problems, the present invention provides a glass fiber mesh spun-bonded needle-punched tire base fabric, which includes a covering layer formed by laying and interweaving polyester fiber filaments in two layers above and below. Composed of a cladding layer and a lower cladding layer, the materials of the upper cladding layer and the lower cladding layer are polyester fiber filaments, and a tensile glass is arranged between the upper cladding layer and the lower cladding layer Fiber mesh cloth, the tensile glass fiber mesh cloth is laid on the lower cladding layer while the lower cladding layer is laid with wires, and the tensile glass fiber mesh cloth continues to swing on it after laying The silk laying net is the upper cladding layer; the upper cladding layer and the lower cladding layer are spun by the upper and lower rows of needles facing each other, and the upper cladding layer is sunken downward under the action of acupuncture, so The lower cladding layer is sunken upward under the action of acupuncture, and the upper cladding layer, the tensile glass fiber mesh cloth and the lower cladding layer are intertwined and combined into a whole under the action of acupuncture. Glass fiber mesh cloth is based on glass fiber woven fabric, coated with polymer anti-emulsion soaking. Therefore, it has good alkali resistance, flexibility and high tensile strength in warp and weft directions, and can be widely used in heat preservation, waterproof, fire prevention, crack resistance, etc.

Preferably, the tensile glass fiber mesh cloth is composed of a plurality of glass fiber strands twisted horizontally and vertically.

Preferably, the tensile glass fiber mesh cloth is flatly spread between the upper cladding layer and the lower cladding layer. The tiling process is simple, and new product processing can be realized by improving the original equipment without purchasing new equipment.

Preferably, the needle bodies of the upper and lower rows of needles have barbs, which can make the upper covering layer, the tensile glass fiber mesh cloth and the lower covering layer better wound and bonded during needle punching. The barbs can make the polyester fiber filaments of the upper covering layer and the lower covering layer pass through the tension-resistant glass fiber mesh cloth to better intertwine and bond together, increasing the structural stability of the cloth body.

A production process of glass fiber grid spunbonded needle-punched tire base fabric, comprising the following steps:

(1) After the polyester fiber yarn passes through the spinning device, it is evenly and disorderly laid on the web-laying machine to form a fiber net. Spread to the upper surface of the lower coating layer, and then spread a layer of polyester fiber filaments evenly and disorderly on the upper surface of the tensile glass fiber mesh cloth, which is the upper coating layer;

(2) After the upper cladding layer, tensile glass fiber mesh cloth and lower cladding layer are flattened, enter the pre-acupuncture machine, and the pre-acupuncture machine pierces the upper cladding layer, tensile force Glass fiber mesh and lower cladding, which makes the upper cladding and lower cladding better combined with tensile glass fiber mesh;

(3) After the pre-acupuncture process is completed, it enters the main acupuncture machine. The main acupuncture machine pierces the lower coating layer, the tensile glass fiber mesh cloth and the upper coating layer sequentially from bottom to top, so that the lower coating layer The layer and the upper cladding layer are further wound and combined with tensile glass fiber mesh cloth to become a semi-finished cloth body;

(4) After acupuncture, the semi-finished cloth body enters the single cylinder heat setting equipment, and the upper covering layer, tensile glass fiber mesh cloth and lower covering layer are further compacted and subjected to high temperature setting;

(5) After the heat setting is completed, enter the dipping equipment, and then compact the semi-finished cloth after dipping, so that the glue can better penetrate into the upper coating layer, the tensile glass fiber mesh cloth and the lower coating layer. In the gap, squeeze out the excess glue at the same time;

(6) The semi-finished cloth body after dipping and compacting enters the multi-circular net drying equipment, and after drying, enters the tension cloth storage rack and the trimming, cutting and winding machine; completes the trimming, cutting and collecting of the finished cloth body volume work.

Compared with the prior art, the present invention has the advantages of: the addition of tensile glass fiber mesh cloth enhances the structural stability of the cloth body, and due to the tensile strength of the tensile glass fiber mesh cloth in the warp and weft direction Both are strong, so the amount of polyester fiber used in the upper and lower covering layers can be reduced as appropriate; the upper and lower covering layers will be better compatible with the resistance The tensile glass fiber mesh cloth is wound and combined to further enhance the stability of the cloth body structure.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Figure 1 is a simplified diagram of the invention.

Figure 2 is a schematic detail of the invention.

Fig. 3 is a schematic diagram of the production process logic of the present invention.

detailed description

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the glass fiber grid spun-bonded needle-punched tire base fabric of the present invention below will be described in detail with the preferred embodiment and the accompanying drawings. illustrate.

Embodiments of the present invention: the glass fiber grid spunbonded needle-punched tire base fabric of this embodiment, as shown in Figure 1 and Figure 2, comprises a cladding layer formed by laying and interweaving polyester fiber filaments in two layers, The cladding layer is composed of an upper cladding layer 1 and a lower cladding layer 2, the materials of the upper cladding layer 1 and the lower cladding layer 2 are all polyester fiber filaments, the upper cladding layer 1 and the lower cladding layer 2 It is spun by two rows of needles facing each other. The upper cladding layer 1 is dented downward under the action of acupuncture, and the lower cladding layer 2 is dented upward under the action of acupuncture. The upper cladding layer 1 and the lower cladding layer 2 is provided with tensile glass fiber mesh cloth 3, and the upper covering layer 1, tensile glass fiber mesh cloth 3 and lower covering layer 2 are intertwined and combined into a whole under the action of acupuncture. Tensile glass fiber mesh cloth 3 is composed of a plurality of glass fiber threads twisted horizontally and vertically. Tensile glass fiber mesh cloth 3 is flatly laid between the upper cladding layer 1 and the lower cladding layer 2 . The needle bodies of the upper and lower rows of needles have barbs, which can make the upper coating layer 1, the tensile glass fiber mesh cloth 3 and the lower coating layer 2 better wound and combined when needling.

As shown in Figure 3, the production process includes the following steps:

(1) After the polyester fiber yarn passes through the spinning device, it is evenly and disorderly laid on the web-laying machine to form a fiber net. Spread to the upper surface of the lower coating layer, and then evenly spread a layer of polyester fiber filaments on the upper surface of the tensile glass fiber mesh cloth in random order by the spinning device, which is the upper coating layer.

(2) After the upper cladding layer, tensile glass fiber mesh cloth and lower cladding layer are flattened, enter the pre-acupuncture machine, and the pre-acupuncture machine pierces the upper cladding layer, tensile force The glass fiber mesh and the lower covering layer make the upper covering layer and the lower covering layer better combined with the tensile glass fiber mesh cloth; the needles of the pre-needling machine have barbs, which can The polyester fiber filaments of the coating layer are pulled through the tension-resistant glass fiber mesh cloth and wound and combined with the polyester fiber filaments of the upper coating layer.

(3) After the pre-acupuncture process is completed, it enters the main acupuncture machine. The main acupuncture machine pierces the lower coating layer, the tensile glass fiber mesh cloth and the upper coating layer sequentially from bottom to top, so that the lower coating layer layer and the upper cladding layer are further wound and combined with tensile glass fiber mesh cloth to become a semi-finished cloth body; Tensile fiberglass mesh is wound with polyester filaments for the underwrap.

(4) After acupuncture, the semi-finished cloth body enters the single cylinder heat setting equipment, and the upper covering layer, the tensile glass fiber mesh cloth and the lower covering layer are further compacted and subjected to high temperature setting; the heat setting equipment There are limit needles on both sides of the feeding conveying end, and the two sides of the semi-finished cloth body are pierced and hung on the limit needles, so that the cloth body can be flattened before high temperature setting, avoiding the occurrence of overlapping, wrinkles, etc. , Effectively prevent uneven heating of the cloth body.

(5) After the heat setting is completed, enter the dipping equipment, and then compact the semi-finished cloth after dipping, so that the glue can better penetrate into the upper coating layer, the tensile glass fiber mesh cloth and the lower coating layer. In the gap, squeeze out the excess glue at the same time;

(6) The semi-finished cloth body after dipping and compacting enters the multi-circular net drying equipment, and after drying, enters the tension cloth storage rack and the trimming, cutting and winding machine; completes the trimming, cutting and collecting of the finished cloth body volume work.

In summary, the present invention comprehensively applies two threads, one mesh, and glass fiber mesh to the glass fiber mesh spun-bonded needle-punched tire base fabric, which has not been mentioned in the existing field, and the application of related technologies makes The base fabric of the tire has many advantages, such as saving material, enhancing the stability of the fabric structure, and the like. Therefore, the present invention has outstanding substantive features and remarkable progress.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (5)

1. The utility model provides a fine net of glass glues needle-punched child base cloth, includes two-layer upper and lower laying of polyester fiber silk and interweaves the coating that forms, the coating comprises upper coating and lower coating, its characterized in that: the upper coating layer and the lower coating layer are made of polyester fiber yarns, tensile-resistant glass fiber mesh cloth is arranged between the upper coating layer and the lower coating layer, the upper coating layer and the lower coating layer are formed by oppositely needling an upper row of felting needles and a lower row of felting needles, the upper coating layer is sunken downwards under the needling action, the lower coating layer is sunken upwards under the needling action, and the upper coating layer, the tensile-resistant glass fiber mesh cloth and the lower coating layer are wound and combined into a whole under the needling action.

2. The fiberglass mesh spunbond needled tire base fabric of claim 1, wherein: the tensile-resistant glass fiber mesh cloth is formed by weaving a plurality of glass fiber lines in a transverse and vertical manner.

3. The fiberglass mesh spunbond needled tire base fabric of claim 2, wherein: the tensile-resistant glass fiber mesh cloth is paved between the upper coating layer and the lower coating layer.

4. The fiberglass mesh spunbond needled tire base fabric of claim 3, wherein: the needle body of two rows of felting needles about has the barb, can make during the acupuncture upper cladding layer, tensile resistance glass fiber net check cloth and lower cladding layer better winding combine.

5. A production process of the glass fiber mesh spun-bonded needle-punched tire base fabric as claimed in claims 1 to 5, wherein the production process comprises the following steps: the method comprises the following steps:

(1) The polyester fiber yarns are laid on a lapping machine in a disordered and uniform manner after passing through a yarn arranging device to form a fiber net which is a lower coating layer, the tensile-resistant glass fiber mesh cloth is laid on the upper surface of the lower coating layer through cloth storage equipment and synchronization equipment in a synchronous manner, and then the yarn arranging device is laid on the upper surface of the tensile-resistant glass fiber mesh cloth in a disordered and uniform manner to form a layer of polyester fiber yarns which is an upper coating layer;

(2) After the upper coating layer, the tensile-resistant glass fiber mesh cloth and the lower coating layer are paved, the materials enter a pre-needling machine, and the pre-needling machine sequentially penetrates into the upper coating layer, the tensile-resistant glass fiber mesh cloth and the lower coating layer from top to bottom, so that the upper coating layer and the lower coating layer are better wound and combined with the tensile-resistant glass fiber mesh cloth;

(3) After the pre-needling process is finished, the fabric enters a main needle machine, and the main needle machine sequentially penetrates into the lower coating layer, the tensile-resistant glass fiber mesh fabric and the upper coating layer from bottom to top, so that the lower coating layer and the upper coating layer are further wound and combined with the tensile-resistant glass fiber mesh fabric to form a semi-finished fabric body;

(4) The semi-finished cloth body after the needling is finished enters single-cylinder heat setting equipment, and the upper coating layer, the tensile-resistant glass fiber mesh cloth and the lower coating layer are further compacted and subjected to high-temperature setting;

(5) After the heat setting is finished, the semi-finished cloth body enters impregnation equipment, and is compacted after being impregnated, so that glue solution can better permeate into gaps among the upper coating layer, the tensile-resistant glass fiber mesh cloth and the lower coating layer, and redundant glue solution is extruded out;

(6) The semi-finished cloth body after gum dipping and compaction enters a multi-cylinder drying device, and after drying is finished, the semi-finished cloth body enters a tension cloth storage rack and an edge cutting, slitting and winding machine; finishing the trimming, slitting and rolling of the finished cloth body.

Images