Melt-blown cloth spinning method
A technology of melt-blown cloth and spinning, which is applied in the direction of melt spinning, non-woven fabrics, and filament forming treatment. It can solve problems such as coagulation, easy occurrence of flying flowers, and poor product uniformity, so as to achieve good softness and reduce flying flowers. The effect of generation and uniformity improvement
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0021] The meltblown cloth spinning method of the present embodiment comprises the following steps:
[0022] (1) Dry the raw materials first, the drying temperature is 80°C, the drying time is 2h, the dried raw materials are heated and melted at 170°C and extruded, and the melt index is 1500g / 10min;
[0023] (2) After the melt is filtered, it is metered into the spinning box by the metering pump. After the melt is filtered by the filter screen, a thin stream of the melt is extruded from the spinneret hole of the spinneret. 、Under the blowing of high-speed hot air flow with a speed of 340m / s, the melt is drawn by a thin stream to form ultra-fine fibers;
[0024] (3) The cold air on both sides of the spinning box is evenly blown towards the superfine fiber curtain formed by the spinning, the temperature of the cold air blowing from the side is 10°C, and the wind speed is 0.5m / s;
[0025] (4) The microfiber curtain is adsorbed to the negative pressure roller to form a nonwoven f...
Embodiment 2
[0028] The meltblown cloth spinning method of the present embodiment comprises the following steps:
[0029] (1) Dry the raw material first, the drying temperature is 85°C, the drying time is 2h, the dried raw material is heated and melted at 210°C and extruded, and the melt index is 1700g / 10min;
[0030] (2) After the melt is filtered, it is metered into the spinning box by the metering pump. After the melt is filtered by the filter screen, a thin stream of the melt is extruded from the spinneret hole of the spinneret. , Under the blowing of high-speed hot air flow with a speed of 350m / s, the melt is drawn by a thin stream to form ultra-fine fibers;
[0031] (3) The cold air on both sides of the spinning box is evenly blown towards the microfiber curtain formed by the spinning, the temperature of the cold air blowing from the side is 12°C, and the wind speed is 0.4m / s;
[0032] (4) The microfiber curtain is adsorbed to the negative pressure roller to form a nonwoven fabric. ...
Embodiment 3
[0035] The meltblown cloth spinning method of the present embodiment comprises the following steps:
[0036] (1) Dry the raw materials first, the drying temperature is 90°C, and the drying time is 1.5h. The dried raw materials are heated, melted and extruded at a temperature of 230°C, and the melt index is 1800 g / 10min;
[0037] (2) After the melt is filtered, it is metered into the spinning box by the metering pump. After the melt is filtered by the filter screen, a thin stream of the melt is extruded from the spinneret hole of the spinneret. , Under the blowing of high-speed hot air flow with a speed of 380m / s, the melt is drawn by a thin stream to form ultra-fine fibers;
[0038] (3) The cold air on both sides of the spinning box is evenly blown towards the microfiber curtain formed by the spinning, the temperature of the cold air blowing from the side is 15°C, and the wind speed is 0.3m / s;
[0039] (4) The microfiber curtain is adsorbed to the negative pressure roller to ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| melt flow index | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More