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Brightening polypropylene mother particle for manufacture of brightening polypropylene fibre

A technology for whitening polypropylene and polypropylene, applied in the field of whitening polypropylene masterbatch, can solve the problem of darkening the gloss of whitening fibers, and achieve the effect of ideal color and light characteristics and ideal gloss

Inactive Publication Date: 2004-12-15
SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage of adding phthalocyanine blue dye is that it makes the whitening fiber look darker.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～9

[0013] [Examples 1-9] (preparation of masterbatch):

[0014] Get component A and component B, and an appropriate amount of dispersant polypropylene wax according to the required proportioning (the addition of dispersant helps the composite fluorescent whitening agent to distribute more evenly in the masterbatch, which is different from that in the prior art Other similar masterbatches are prepared the same.) and fiber-grade polypropylene resin base material (melt flow rate is 20 ~ 30g / 10min) put into a rotary mixer and mix evenly, during which an appropriate amount of antioxidant 1010, 168 is added, the The mixture is melted and granulated at a temperature of 180-210° C. using a twin-screw extruder to obtain a masterbatch product.

[0015] The components and their contents contained in the masterbatch are listed in Table 1.

[0016]

Embodiment 10～15

[0017] [Example 10~15] (preparation of fiber):

[0018] Mix the masterbatch obtained in the above examples with ordinary polypropylene particles, dry and melt-spin in a screw extruder to obtain pre-oriented yarn POY, and part of the POY yarn is further processed into drawn yarn DT or elastic yarn DTY . Or melt spinning in a screw extruder after drying to obtain short fibers.

[0019] See Table 2 and Table 3 for the processing technology of the fiber and some indexes of the fiber.

[0020] Raw material ratio

(masterbatch / common

polypropylene)

V1

T

V2

R

D / Y

H1 / H2

Example 10

100 / 2

2500

230～265

400

1.52

1.42

80 / 100

Example 11

100 / 1

2500

230～265

400

1.56

1.42

140 / 120

Example 12

100 / 1.5

2600

230～265

350

1.46

1.42

135 / 115

Example 13

...

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PUM

PropertyMeasurementUnit
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Abstract

The whitening agglomerate for polypropylene fiber includes fiber level polypropylene resin as base material and composite fluorescent whitening agent accounting for 2-10 wt% of the agglomerate. The composite fluorescent whitening agent includes two components, the component A is any one of dibenzoxazole, triazinyl phenyl coumarin, naphthotriazolyl-phenyl coumarin and bi-styryl xenene, and the component B is any one of anthraquinone and indigo. The A / B weight ratio is 100 to 0.5-5. Compared with available indigotin dye, the whitening agglomerate may be used in producing even white and lucidus fiber.

Description

technical field [0001] The invention relates to a whitening polypropylene master batch for producing whitening polypropylene fibers, in particular to a whitening polypropylene master batch using oxazole and bisstyrene biphenyl fluorescent whitening agents. Background technique [0002] Because of a series of advantages such as low raw material price, simple production process, light fiber, chemical resistance, good warmth retention and hydrophobicity, polypropylene fiber has continuously expanded its application field. Among them, whitening polypropylene fiber is a new type of polypropylene fiber developed in recent years. It is especially suitable for making non-woven fabrics, clothing fabrics and decorative fabrics. Compared with white fibers, it has higher added value. Whitening polypropylene fibers are generally produced by the masterbatch method. In the prior art, fiber-grade polypropylene resin is generally used as the base material for whitening masterbatches, and oxa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/20C08L23/12
Inventor 王荣和王雪良富力豪郑红闵丽华陈国康
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD