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Anti-ultraviolet bi-oriented nylon film with straight tearing and preparation method thereof
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A biaxially stretched nylon, anti-ultraviolet technology, applied in chemical instruments and methods, household appliances, flexible coverings, etc., to achieve the effect of good anti-ultraviolet resistance, good experience and long service life
Inactive Publication Date: 2021-04-02
厦门长塑实业有限公司
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[0005] The object of the present invention is to overcome the deficiencies of the prior art, provide a kind of anti-ultraviolet biaxially stretched nylon film with direct tearing property and its preparation method, solve the above-mentioned background technology of anti-ultraviolet property and its relationship with direct tearing The problem of balancing performance
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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
[0031] In this embodiment, a UV-resistant biaxially stretched nylon film with direct tearing properties is a three-layer structure composed of a first surface layer 1, a core layer 2 and a second surface layer 3:
[0032] Both the first surface layer 1 and the second surface layer 3 are composed of 81wt% anti-ultraviolet nylon masterbatch, 15wt% special nylon, 3wt% opening agent and 1wt% slip agent; the core layer 2 is composed of 85wt% Anti-ultraviolet nylon masterbatch, 15wt% special nylon composition.
[0033] Among them, the anti-ultraviolet nylon masterbatch is added 8% anti-ultraviolet agent, 1% dispersant, 3% antioxidant and other functional additives, 60wt% caprolactam, and the rest is deionized water during the polymerization process.
[0047] The difference between embodiment 2 and embodiment 1 is:
[0048] Both the first surface layer and the second surface layer are composed of 76wt% anti-ultraviolet nylon masterbatch, 20wt% special nylon, 3wt% opening agent and 1wt% slip agent; the core layer is composed of 80wt% anti-ultraviolet Nylon masterbatch, 20wt% special nylon composition.
[0049] Wherein, the anti-ultraviolet nylon master batch is added with 8% anti-ultraviolet agent, 1% dispersant, 3% antioxidant and other functional auxiliary agents, 60wt% caprolactam, and the rest is deionized water during the polymerization process.
[0057] The difference between embodiment 3 and embodiment 1 is:
[0058]Both the first surface layer and the second surface layer are composed of 66wt% anti-ultraviolet nylon masterbatch, 30wt% special nylon, 3wt% opening agent and 1wt% slip agent; the core layer is composed of 70wt% anti-ultraviolet Nylon masterbatch, 30wt% special nylon composition.
[0059] Wherein, the anti-ultraviolet nylon master batch is added with 8% anti-ultraviolet agent, 1% dispersant, 3% antioxidant and other functional auxiliary agents, 60wt% caprolactam, and the rest is deionized water during the polymerization process.
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 an anti-ultraviolet bi-oriented nylon film with straight tearing and a preparation method thereof. The film is sequentially provided with a first surface layer, a core layer and a second surface layer; the first surface layer and the second surface layer consist of 66 to 85 weight percent of anti-ultraviolet nylon master batch, 15 to 30 weight percent of special nylon, 0 to3 weight percent of an anti-blocking agent and 0 to 1 weight percent of a slipping agent; the core layer consists of 70 to 85 weight percent of anti-ultraviolet nylon master batch and 15 to 30 weightpercent of special nylon; and the anti-ultraviolet nylon master batch is prepared by polymerizing 1 to 10 weight percent of a uvioresistant agent, 0.5 to 2 weight percent of a dispersing agent, 0.5 to 3 weight percent of an antioxidant, 50 to 70 weight percent of caprolactam and the balance of water. The film disclosed by the invention is good in ultraviolet resistance, good in assistant dispersity, good in film surface appearance, long in service life and long in shelf life of contents, also has direct tearing property, gives better experience feeling to customers, and avoids spilling and waste of the contents.
Description
technical field [0001] The invention belongs to the technical field of film packaging, and in particular relates to a direct-tearing ultraviolet-resistant biaxially stretched nylon film and a preparation method thereof. Background technique [0002] Biaxially oriented nylon film is widely used in Food, electronics, pharmaceutical packaging and many other industries and fields. However, such product packaging is often exposed to light, especially ultraviolet light, which can change or degrade the structure of the packaged product, thereby affecting the quality of the contents, shortening the shelf life, or even undergoing qualitative changes. [0003] Chinese patent (publication number: CN105218855A) discloses an anti-ultraviolet polyamide film and its preparation method, which adopts the method of adding nano-rare earthoxide / fullerene / nano-titaniumpyrophosphate compound to achieve anti-ultraviolet effect. The invention patent obtains the film by directly mixing the compo...
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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