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A non-woven, low-pressure film technology, applied in the field of non-woven composite materials and composite embossed non-woven fabrics, can solve the problems of high cost of composite embossed non-woven fabrics and high prices of adhesives, reduce production costs, and improve adhesion. The effect of knot strength
Inactive Publication Date: 2013-01-02
SUZHOU JIUDING
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[0005] A single non-woven fabric limits its application field and needs to be used in combination with other materials. The combination of low-pressure film, pearl cotton and non-woven fabrics has been widely used. Composite embossed non-woven fabrics need to be used in the process of casting and compounding Coating materials such as adhesives, due to the high price of adhesives, the cost of composite embossed non-woven fabrics is relatively high
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0016] First, the upper low-pressure film and the middle layer of pearl cotton are directly hot-pressed by the ginning machine at a hot-pressing temperature of 110°C and a roller speed of 800RPM. The coating layer is formed by mixing 80wt% adhesive and 20wt% low-density polyethylene resin particles. The lower layer of non-woven fabric and low-pressure film formed by hot pressing and pearl cotton are cast and composited at 240°C, and the thickness of the aluminum film is 8 microns.
Embodiment 2
[0018] First, the upper low-pressure film and the middle layer of pearl cotton are directly hot-pressed by a ginning machine at a hot-pressing temperature of 110°C and a roller speed of 1200RPM, and are mixed with 60wt% adhesive and 40wt% low-density polyethylene resin particles as the coating layer. The lower non-woven fabric and the low-pressure film formed by hot pressing and pearl cotton are cast and compounded at 280°C, and the thickness of the aluminum film is 25 microns.
Embodiment 3
[0020] First, the upper low-pressure film and the middle layer of pearl cotton are directly hot-pressed by the ginning machine at a hot-pressing temperature of 110°C and a roller speed of 1000RPM. The coating layer is formed by mixing 70wt% adhesive and 30wt% low-density polyethylene resin particles. The lower layer of non-woven fabric and hot-pressed low-pressure film and pearl cotton are cast and composited at 260 ° C, and the thickness of the aluminum film is 15 microns.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention discloses a composite embossed non-woven fabric which is prepared by subjecting EPE and a low-pressure membrane to direct hot pressing on an embossing calendar under the conditions of a hot pressing temperature of 110 to 120 DEG C and a rotating speed of a pressure roller of 800 to 1200 RPM and then compounding the pressed low-pressure membrane and EPE with a non-woven fabric through tape casting of a coating layer formed by a mixture of an adhesive and a low density polyethylene resin particle, wherein an upper layer is the low-pressure membrane, a middle layer is the EPE, a lower layer is the non-woven fabric, the usage amount of the low density polyethylene resin particle accounts for 20 to 40% of the weight of a coating material, and the thickness of the low-pressure membrane is 8 to 25 mu m. Since the low density polyethylene resin particle is cheaper than the adhesive, the composite embossed non-woven fabric provided by the invention has reduced production cost while the compounding quality of the non-woven fabric, the EPE and the low-pressure membrane is ensured, and improves bonding strength of the low-pressure membrane and the EPE through controlling the hot pressing temperature and the rotating speed of the pressure roller, allowing bonding between the low-pressure membrane and the EPE to be firmer.
Description
technical field [0001] The invention belongs to the technical field of packaging materials, and relates to non-woven fabric composite materials, in particular to a composite embossed non-woven fabric. Background technique [0002] EPE pearl cotton is a new type of environmentally friendly packaging material, which is composed of numerous independent bubbles produced by physical foaming of low-density polyethylene. It overcomes the shortcomings of ordinary styrofoam such as fragility, deformation, and poor recovery. It has many advantages such as water and moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, and strong impact resistance. Good chemical resistance is an ideal substitute for traditional packaging materials, widely used in electronic appliances, instruments, computers, audio, medical equipment, industrial control chassis, hardware lighting, handicrafts, glass, ceramics,...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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