Whitening/brightening master batch for producing whitened regenerated terylen and preparation method thereof
A technology of polyester masterbatch and recycled polyester, applied in the field of polyester production, can solve the problems of affecting fiber whiteness, insufficient to meet the requirements of fiber whiteness, and failure to achieve whitening, etc., to achieve high light reflectivity, bright color, pastel effect
Inactive Publication Date: 2013-02-13
NINGBO DAFA CHEM FIBER
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Compared with traditional regeneration spinning, the whitening regenerated polyester staple fiber produced by directly adding whitening agent is not enough to meet the requirements of high-end fiber products for fiber whiteness, even adding titanium dioxide still cannot achieve the purpose of whitening
Often, the whitening agent and titanium dioxide are directly added when the raw materials are directly dried, which leads to premature oxidation of the whitening agent and titanium dioxide, which affects the whiteness of the fiber, and there is dust in the feeding process, which causes waste of titanium dioxide and whitening agent and pollutes the environment. occur
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] Embodiment [1-7] (preparation of masterbatch):
[0022] Take component A, component B, component C and polyester powder according to the required ratio and put them into a high-speed mixer for stirring and mixing, during which an appropriate amount of component D is added. Melt and granulate at ~225°C to obtain masterbatch products.
[0023] Table 1 Contained in the masterbatch: components and their content
[0024]
[0025] Embodiment [8-14] (preparation of fiber):
[0026] The masterbatch obtained in the above examples is mixed with polyester bottle flakes (white bottle flakes: light blue bottle flakes = 95:5), dried and melt spun in a screw extruder to obtain polyester staple fibers.
[0027] Table 2 Raw material ratio, main process parameters and fiber whiteness (SBD-R457)
[0028]
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Abstract
The invention relates to the field of terylen production, particularly a whitening / brightening master batch for producing whitened regenerated terylen chopped fibers from recovered polyester and a preparation method thereof. The whitening / brightening master batch for producing whitened regenerated terylen is prepared by melting and granulating the following components and polyester powder: component A: fluorescent whitening agent, brightener and heat stabilizer; component B: color master batch titanium dioxide for polyester fibers; and component C: brightening agent. The component A:component B:component C weight ratio is (1%-15%):(15%-45%):(0.1%-1.0%). The invention provides a whitening / brightening master batch for producing whitened regenerated terylen.
Description
technical field [0001] The invention relates to the field of polyester production, in particular to a whitening and brightening masterbatch for producing whitening and brightening regenerated polyester staple fibers by using recycled polyester as a raw material and a preparation method thereof. Background technique [0002] At present, recycled polyester fiber has received strong support from various departments of the state and has developed rapidly due to its environmental protection, greenness, and obvious price competitive advantage (compared with virgin polyester fiber), and by 2011, the The production capacity has exceeded 7.5 million tons, most of which are white recycled polyester fibers produced from polyester bottle flakes, polyester packaging materials, and virgin polyester waste by simply adding fluorescent whitening agents. Because there is a large difference in whiteness between this kind of fiber and virgin polyester fiber, it cannot be used in fiber products ...
Claims
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IPC IPC(8): C08L67/00C08K13/02C08K3/22B29B9/06B29C47/92D01F6/92D01F1/10B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 钱军邢喜全王方河贾同伟杜芳
Owner NINGBO DAFA CHEM FIBER