Smoking apparatus for processing porkhide dog chews

Abstract

The present invention provides a method and appartus of processing porkhide dog chews. The method includes the step of first subjecting pigskin rawhide to defatting and depilation treatment. Then the rawhide is split to obtain a first, a second, a third and a fourth layer of rawhide material. The rawhide material undergoes defatting, rinsing, and sun-drying to produce a finished hide product. The hide product is smoked to achieve objectives of dying and flavoring to result in a finished porkhide dog chew product.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional application under 37 C.F.R. § 1.53(b) of prior U.S. application Ser. No. 10 / 106,402 filed on Mar. 26, 2002, entitled A Method Of Processing Porkhide Dog Chews, and published as 2002 / 0142079 A1 on Oct. 3, 2002, which in turn, claims foreign priority to State Intellectual Property Office of the People's Republic of China Application No. ZL 01105819.6, filed Mar. 31, 2001 and published Apr. 2, 2001, which subsequently issued on May 19, 2004, Patent Certificate No. 155117.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to methods of processing pet food products made from animal hide. [0004] 2. Background Art [0005] Pet chewing bones made from animal hide are a type of pet food product, called dog chews in the industry. There is enormous market demand for these products in advanced countries such as Japan, the United States, the United Kingdom, and Australia. ...

AI Technical Summary

Benefits of technology

[0007] The fact that cowhide has small pores and less grease means that cowhide dog chews boast smooth and lustrous surfaces that can easily be dyed different colors and soaked to take on many delicious flavors. The aforementioned process of dyeing and flavoring consists of directly using food dyes and flavor essences on the surface of the finished product. This method is very well suited to cowhide dog chews. Because pork hides have large pores and high fat content, porkhide dog chews appear rough, plain, dull, and white. They smell of rawhide and uncooked oil. Moreover, there is no way to dye or flavor them, for their oily surface can hardly absorb any dyes or flavor essences. Therefore, although the raw material for porkhide dog chews enjoys a huge advantage in terms of availability and ease of purchase (relative to cowhide), it is difficult to change the unappealing color and odor of porkhide dog chews using the current, general dyeing and flavoring methods. As a result, cowhide dog chews have won most of the dog chew market, and porkhide dog chews have just a minor share of the market.

Problems solved by technology

Because pork hides have large pores and high fat content, porkhide dog chews appear rough, plain, dull, and white.

Moreover, there is no way to dye or flavor them, for their oily surface can hardly absorb any dyes or flavor essences.

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