CN203065777U - bamboo fiber board felt - Google Patents

Abstract

The utility model relates to the technical field of nonwoven fabrics, in particular to a bamboo fiberboard felt; a bamboo fiberboard felt, which is formed by stacking more than one fabric layer, and an adhesive layer is arranged between the fabric layers; since PET fiber is a thermoplastic fiber, the rigidity of the fiber macromolecular chain is relatively large, the elastic modulus is high, and the fiber is not easy to deform, and the surface structure of the bamboo fiber has countless fine grooves, irregular ellipses and waist circles in the horizontal direction, etc., with a central cavity inside, and the cross section is covered with large and small gaps, which make it easy for moisture to enter. The utility model is a three-dimensional mesh structure, which combines the unique structure and performance of the above two fibers, so that it has high strength, good elasticity, flame retardancy, environmental protection, heat insulation and heat preservation, and there are many pores between the fabric layers, and the structure is very loose, which is conducive to absorbing noise, absorbing moisture and ventilation.

Description

bamboo fiber board felt

technical field

The utility model relates to the technical field of non-woven fabrics, in particular to a bamboo fiber felt.

Background technique

In the fields of automotive interior materials and interior decoration, sound-absorbing materials are required in many occasions that generate relatively loud noises. For example, factory workshops, conference rooms, TV stations, studios, concert halls, gymnasiums, recording studios, KTV, etc., the purpose is to minimize noise pollution and make the sound more pure.

At present, the sound-absorbing materials used in the market are mostly made of chemical and synthetic fiber blends, which are non-degradable and do not meet environmental protection requirements. In order to solve the problem of non-environmental protection of materials, polyester fibers are currently used as sound-absorbing materials on the market. Although polyester fibers have the advantages of sound absorption, environmental protection, flame retardancy, and heat insulation, the sound-absorbing materials made of polyester fibers are less It has poor hygroscopicity and air permeability, and cannot meet the requirements of the market and modern people for working and living environments.

Utility model content

The utility model provides a bamboo fiber board felt for solving the problems that the current sound-absorbing board felt is not environmentally friendly, has poor hygroscopicity and air permeability.

In order to achieve the above functions, the technical solution provided by the utility model is:

A kind of bamboo fiber board felt, said bamboo fiber board felt is formed by laminating more than one fabric layer, and an adhesive layer is arranged between said fabric layers.

Preferably, the adhesive layer is composed of low-melting fibers.

A kind of bamboo fiber board felt, described bamboo fiber board felt is made up of following composition:

(1), 10% ~ 25% PET fiber;

(2), 45%~50% bamboo fiber;

(3), 30% to 40% low melting point fiber.

A method for manufacturing bamboo fiber board felt, comprising the following steps:

(1) Evenly mix 10%-25% PET fiber, 45%-50% bamboo fiber and 30%-40% low melting point fiber;

(2) Open the raw materials mixed in the above step (1) through an opener;

(3) Put the mixture loosened in step (2) into the cotton mixing box for pricking and entanglement;

(4) Combing the entangled mixture through a carding machine in step (3);

(5) Laying the fibers carded in step (4) with a web-laying machine;

(6), forming and processing the fibers laid out in step (5) to form a fabric layer with a thickness of 15 mm to 25 mm;

(7) The several fabric layers produced in the step (6) are laminated, and the fabric layers are glued together by an adhesive layer.

Preferably, the molding processing method described in the step (6) is as follows:

a. Send the laid fiber into the oven, and bake it into shape. The baking temperature is 160℃～200℃, and the baking time is 8min～14min;

b. Take the formed fiber out of the oven, cool and press with a chilled water roll, the temperature of the chilled water roll is 10°C-20°C, and the applied pressure is 0.05MPa-0.15MPa;

c. Blowing and cooling by a cooling fan, the temperature of the cold air is 10°C to 17°C.

Preferably, the baking temperature in step a is 170° C. to 190° C., and the baking time is 9 minutes to 13 minutes.

Preferably, the baking temperature in step a is 180° C., and the baking time is 11 minutes.

Preferably, in the step b, the temperature of the chilled water roll is 17° C., and the applied pressure is 0.1 MPa.

Preferably, in the step c, the temperature of the cold air is 12°C to 15°C.

Preferably, in step c, the temperature of the cold air is 13°C.

The beneficial effect of the utility model is: a kind of bamboo fiber board mat is formed by laminating more than one fabric layer, and an adhesive layer is arranged between the fabric layers. Since PET fiber is a kind of thermoplastic fiber, the fiber macromolecular chain The rigidity is high, the modulus of elasticity is high, and the fiber is not easily deformed, while the surface structure of bamboo fiber has numerous fine grooves, irregular ellipse in the transverse direction, waist circle, etc. Small gaps allow moisture to easily enter. The utility model is a three-dimensional network structure, which combines the unique structure and performance of the above two fibers, so that it has high strength, good elasticity, flame retardancy, environmental protection, heat insulation and many pores between the fabric layers, The structure is very loose, which is good for noise absorption, moisture absorption and breathability.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing 1, the utility model is further elaborated:

A kind of bamboo fiber board felt as shown in Figure 1, is formed by laminating more than one fabric layer 1, is provided with adhesive layer 2 between described fabric layer 1, and adhesive layer 2 is made up of low-melting point fiber and utilizes low melting point The characteristics of fibers melting immediately at 100°C to 120°C fuse and bond each fabric layer 1 together to form a whole.

The bamboo fiber mat of the utility model contains 10%-25% of PET fiber, 45%-50% of bamboo fiber and 30%-40% of low melting point fiber. Its manufacturing method includes the following steps:

(1) Evenly mix 10%-25% PET fiber, 45%-50% bamboo fiber and 30%-40% low melting point fiber;

(2) Open the raw materials mixed in the above step (1) through an opener; the function of opening is to loosen, loosen and remove impurities;

(3) Put the mixture loosened in step (2) into the cotton mixing box for pricking and entanglement; the function of pricking and entanglement is to mix raw cotton with different components evenly, and at the same time have preliminary opening and impurity removal;

(4) Combing the entangled mixture in step (3) through a carding machine; the function of carding is to further loosen the fiber aggregates after opening, and improve the fiber quality while reducing fiber damage as much as possible. High degree of separation, so that the fiber bundles are relatively well separated into a single fiber state, continue to remove impurities and defects and make the fibers more detailed and evenly mixed;

(5) Lay the fibers carded in step (4) by a web-laying machine; web-laying is to stack the fiber layers after carding together to increase their uniformity;

(6) Forming the fibers after laying in step (5) to make a fabric layer 1 with a thickness of 15 mm to 25 mm; the forming process adopts the method of hot air forming. First, the fibers after laying are sent into an oven, After being baked and formed, the formed fiber is taken out of the oven, cooled and pressed by a cold water roller, and then cooled and formed by a cooling fan. In the hot air molding process, the baking temperature is 160°C to 200°C, the preferred temperature is 170°C to 190°C, and the optimum temperature is 180°C; the baking time is 8min to 14min, preferably 9min to 13min, and the optimum time is 11min . During the cooling and pressing of the chilled roll, the temperature of the chilled roll is 10°C to 20°C, preferably 13°C to 17°C, and the optimum temperature is 17°C. The pressure is 0.05MPa～0.15MPa, and the optimum pressure is 0.1MPa. Cooling by the cooling fan is carried out after the chilled water roll is cooled and pressed. The temperature of the cold air is 10°C to 17°C, preferably 12°C to 15°C, and the optimum temperature of the cold air is 13°C.

(7) The several fabric layers 1 produced in the step (6) are superimposed, and the fabric layers 1 are bonded by the adhesive layer 2 .

The structure of the bamboo fiberboard felt of the utility model is very loose, and there are many gaps between the fabric layers, which can not only absorb sound, absorb moisture and perspiration, absorb peculiar smell, deodorize, clean and antibacterial, bacteriostatic, sterilizing, anti-ultraviolet, but also heat insulation and heat preservation , Flame retardant effect.

The above-described embodiments are only preferred examples of the utility model, and are not intended to limit the scope of implementation of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent scope , should be included in the utility model patent application scope.

Claims (2)

1. bamboo fiberboard felt, it is characterized in that: described bamboo fiberboard felt is formed by stacking by more than one tissue layer (1), is provided with adhesive layer (2) between the described tissue layer (1).

2. bamboo fiberboard felt as claimed in claim 1, it is characterized in that: described adhesive layer (2) is made up of low-melting fiber.

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