CN102454047A

CN102454047A - Production process for meltblown nonwovens

Info

Publication number: CN102454047A
Application number: CN2011102868640A
Authority: CN
Inventors: 阳业东
Original assignee: GUANGZHOU SANTAI AUTOMOTIVE TRIM MATERIALS CO Ltd
Current assignee: GUANGZHOU SANTAI AUTOMOTIVE TRIM MATERIALS CO Ltd
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-05-16

Abstract

The invention discloses a production process for meltblown nonwovens. The production process comprises the following steps of: a) extruding a mixture of polypropylene (PP) particles, PP temperature reducing masterbatches and PP powder by using an extruder, controlling four-area temperature of the extruder to be 160-220 degrees, metering, and introducing high temperature high pressure air for spinning; b) carding superfine fibers containing 20 to 50 percent of poly(ethylene terephthalate) (PET) fibers, and feeding the fibers, together with the spun mixture, into a roller receiving device for laying a net to obtain a semi-finished product; and c) gluing the upper and lower surface of the semi-finished product and compounding PP non-woven fabrics in the specification of 10-50g/m<2> to obtain the product. The nonwovens produced by the process have fibers arranged in a V shape in the section direction, have high packing ratio, and have ideal sound absorption coefficient, puff extent and uniformity.

Description

A kind of production technology of melt spraying non-woven fabrics

Technical field

The invention belongs to textile technology field, be specifically related to a kind of production technology of V-arrangement melt spraying non-woven fabrics.

Background technology

Nonwoven product is seen everywhere in daily life; For example as diaper, sanitary napkin, rag and filtration series products or the like; The multinomial important performance of nonwoven product need be carried out by the superfine fibre net, and the quality that melts and sprays of superfine fibre net is the difficult point place in the melt spraying non-woven fabrics processing.

Melt spraying non-woven fabrics of the prior art; Mainly mixing back injection HTHP air melt spraying non-woven fabrics by terylene forms; The product that obtains is seen from cross-wise direction; The fiber alignment of mid portion is rambling irregular shape, is difficult to obtain desirable acoustic absorptivity, bulking intensity and uniformity, and packing ratio is lower.

Summary of the invention

The purpose of this invention is to provide a kind of melt spraying non-woven fabrics production technology, the fiber on the nonwoven fabric cross-wise direction of this explained hereafter is the V-arrangement of rule to be arranged, and packing ratio is higher, has desirable acoustic absorptivity, bulking intensity and uniformity.

The technical solution adopted for the present invention to solve the technical problems is: a kind of production technology of melt spraying non-woven fabrics; Comprise the steps: a), the mixture of PP particle, PP cooling masterbatch and PP powder is extruded from extruder; Four district's temperature of extruder are controlled at 160-220 ℃; Measure then, the air that charges into HTHP simultaneously carries out spinning; B), the superfine fibre thing that will contain the PET fiber of 20-50% carries out combing, then with spinning after mixture send into the cylinder receiving system in the lump and carry out lapping, thereby obtain semi-finished product; C), semi-finished product are sprayed glue, be 10-50g/m in two compound respectively specifications in surface up and down then ²The PP nonwoven fabric, thereby obtain product.

Wherein, the PP particle accounts for 50-80% in the said step a), and the PP powder accounts for 5-15%.

Wherein, the PET fiber dimensious in the said step b) is 1.5D 6D.

The invention has the beneficial effects as follows: the V-arrangement that is rule according to the fiber on the nonwoven fabric cross-wise direction of this explained hereafter is arranged, and packing ratio is higher, has desirable bulking intensity and uniformity.

The specific embodiment

Below in conjunction with embodiment the present invention is done further explain.

The invention discloses a kind of production technology of melt spraying non-woven fabrics, comprise the steps:

A), will to contain 50-80%PP particle, 5-15%PP powder, surplus be that the mixture of PP cooling masterbatch is extruded from extruder, four district's temperature of extruder are controlled at 160-220 ℃, measure then, the air that charges into HTHP simultaneously carries out spinning;

B), will to contain 20-50%, specification be that the superfine fibre thing of the PET fiber of 1.5D-6D carries out combing, then with spinning after mixture send into the cylinder receiving system in the lump and carry out lapping, thereby obtain semi-finished product;

C), the compound specification of gluing being carried out on two surfaces about the semi-finished product respectively is 10-5Cg/m ²The PP nonwoven fabric, thereby obtain product.

Claims

1. the production technology of a melt spraying non-woven fabrics is characterized in that, comprises the steps:

A), the mixture of PP particle, PP cooling masterbatch and PP powder is extruded from extruder, four district's temperature of extruder are controlled at 160-220 ℃, measure then, and the air that charges into HTHP simultaneously carries out spinning;

B), the superfine fibre thing that will contain the PET fiber of 20-50% carries out combing, then with spinning after mixture send into the cylinder receiving system in the lump and carry out lapping, thereby obtain semi-finished product;

C), the compound specification of gluing being carried out on two surfaces about the semi-finished product respectively is 10-50g/m ²The PP nonwoven fabric, thereby obtain product.

2. production technology according to claim 1 is characterized in that the PP particle accounts for 50-80% in the said step a), and the PP powder accounts for 5-15%.

3. production technology according to claim 2 is characterized in that, the PET fiber dimensious in the said step b) is 0.7D-6D.